Plant Engineering Infobase · Questions from practice
Questions from practice: P&ID, Plant 3D, piping specs, AutoCAD
254 questions that were actually asked in our training courses and support sessions – with practical answers. Free and without login.
AutoCAD P&ID (88)
How do I back up my customized interface so it doesn't get lost?
First set up palettes, toolbars, the menu bar and options. Then, via the gear icon in the status bar or the workspace selector in the Quick Access Toolbar, choose "Save Current As". It is advisable to keep the name of the original workspace and append your own abbreviation, e.g. "P&ID ISO AB". This preserves the original, and you can see which workspace yours is based on. Save again after, for example, switching the palette group – otherwise changes are lost the next time you open Customize User Interface.
After copying, objects show a question mark instead of a number. Why – and how do I assign new tags?
A tag may occur only once in the project; a copy would get the same number, so the program sets a "?". Right-click the object at its edge and choose "Assign Tag"; the button next to the number assigns the next available number. If you have already placed the annotation, deactivate "Place annotation after assigning tag" – otherwise a second annotation is created, which you then select and delete. Preferably copy with the COPY command instead of Ctrl+C/Ctrl+V and use a crossing window (from right to left) so that connected lines are copied as well.
How do I record revision states and restore older drawing versions?
A proven approach: plot every issue as a PDF, with the revision index in the file name and title block. In addition, back up the entire project at each revision point – with the project closed, copy the project folder or store it as a ZIP with the date in the name. You can retrieve individual drawings from it via "Copy Drawings to Project". If, on the other hand, you only swap DWG files in the project folder, the drawing and the project database no longer match.
Why should the project name not contain spaces or special characters?
When you create a project, the project name is also used as the name of the project folder. Spaces, special characters and very long paths can later cause problems with access, copying or backups. A proven approach is a project number with a short name and underscores, e.g. "2026_001_Pumpstation". Enter the full project description in the Description field of the wizard – spaces are no problem there and the text can be changed at any time. Also, do not create projects in synchronized cloud folders, as creating them there can take a very long time.
How can I tell whether a line is correctly connected to equipment?
A plus sign at the end of a line means: not connected. When connected correctly, a nozzle is placed and annotated automatically. For a grid-accurate connection, use Shift + right-click > "Apparent Intersection" and click the line and the equipment outline. In P&ID, preferably use the object snaps Nearest, Node and, if needed, Perpendicular – Endpoint and Midpoint often lead to connections off the grid.
The Project Wizard is not displayed correctly or crashes – what could be the cause?
A common cause is Windows display scaling above 100% (e.g. 125%). Right-click the desktop > Display settings, set scaling to 100%, sign out of Windows and back in, and restart AutoCAD P&ID or Plant 3D. The wizard is then usually displayed in full.
The flow arrows point in the wrong direction. How do I reverse the flow direction?
The flow direction results from the direction in which the line was drawn. Right-click the line and choose Schematic Line Edit > Reverse Flow. The arrows are flipped and the line's From/To information is adjusted. Then hover over the line: the tooltip shows from which object to which object the line runs. Validation also shows you flow direction conflicts.
How do I remove part of a line or insert a gap at a crossing?
Right-click the line > "Schematic Line Edit": 1. "Break" – click the break point once and confirm with Enter; then select only the superfluous section and delete it. 2. "Join" puts separated parts back together. 3. "Add Gap" inserts a break at a crossing. You do not remove a gap by deleting the symbol but via "Remove Gap". 4. "Reverse Flow" reverses the flow direction.
Where do I enter the project information that should appear in the title block?
In the Project Manager, right-click the project name (top level) and choose the last entry in the context menu (Project Setup). Under "Project Details", fill in the fields used in the title block and in lists. There you can also enable the prompt for the edit history – a comment on the change is then requested when saving. The first time, also check whether the path to the drawing template (DWT) is accessible.
My tool palette has disappeared or shows the wrong symbols. How do I get it back?
Press Ctrl+3 or use Tools > Palettes > Tool Palettes to show the palette again (Properties: Ctrl+1). If it shows the wrong symbols, right-click the title bar of the palette and select the palette group that matches the project, e.g. the ISO group. The palette must match the symbol standard the project was created with – symbols from different standards are generally not interchangeable. It is best to dock the palette at the edge of the screen and then save your workspace.
May I open P&ID drawings by double-clicking in Explorer or copy them with "Save As"?
No. Plant drawings belong to a project with a database and should only be created, opened and closed via the Project Manager. "Save As" creates a copy of the drawing with the same objects – as a result, entries in the project may be counted twice and bills of material become wrong. Only save with Ctrl+S. Create new drawings by right-clicking "P&ID Drawings" > New Drawing, not via the plus tab. To reuse an existing drawing, use "Copy Drawings to Project" in the Project Manager.
How do I copy P&ID content into another drawing without losing properties?
Copy with a base point: select the objects, press Ctrl+Shift+C, enter base point 0,0, then in the target drawing press Ctrl+V and enter 0,0 again. With a simple Ctrl+C/Ctrl+V, the P&ID properties are not reliably carried over. Within a drawing, use the AutoCAD COPY command. For similar P&IDs, create a new drawing in the project and copy the content of the template drawing into it this way. The prerequisite is that the classes used exist in the target project.
How do I insert a reducer and change the nominal size on one side?
Select the reducer in the tool palette and place it directly on the line; it must connect, and the line is then split automatically. Then change the nominal size of the side concerned, e.g. via the annotation or the Properties window of the line segment; the symbol adjusts accordingly. If the reducer in a vertical line points in the wrong direction, change the nominal size directly on the respective line segment.
How do I draw a line that does not visually run through a vessel or filter?
Right-click the line and select Schematic Line Edit > Add Gap. Then click the point before and after the equipment; the line is broken there but remains one continuous line. The gap can be moved later using its grips. Where lines cross, the program creates gaps automatically. Whether a gap or a loop is displayed and how large it is, is defined by the administrator in Project Setup under P&ID DWG Settings in the line settings.
The reducer does not rotate after the nominal size is changed. What am I doing wrong?
The reducer follows the nominal sizes of the connected line sections. Therefore assign the nominal size directly to the line segment (click the line > Properties, or right-click > Assign Tag) and not only via the annotation. For horizontal lines, double-clicking the reducer annotation also works; for vertical lines, assigning it on the segment is more reliable. If it still does not rotate, delete the reducer, decide which nominal size is to be kept, insert it again and then change the nominal size of the affected run.
How do I change the width or height of a vessel afterwards?
Vessels are scaled on insertion (enter the value in the command line, then the rotation angle). Afterwards, select the vessel and change the scale factors for the respective direction in the Properties window. Other symbols such as pumps or filters have a fixed standard size; on insertion, only the position or direction is prompted.
Why can't lines or symbols from a palette be drawn, or why do they appear white?
Tool palettes only refer to symbols in Project Setup. If the palette does not match the project's standard set (e.g. an ISA or DIN palette in an ISO project) or the symbols are missing in the project, the tools do not work or are displayed as white placeholders. Use the palette group belonging to the project and the matching workspace. Missing symbols must first be brought into Project Setup, e.g. via project comparison.
How do I jump from the Data Manager to an object in the drawing?
Select the entire row using the field on the far left (not just a data cell) and activate the Zoom button (magnifying glass) – the program then zooms to the object. Other functions: hide empty columns, filter by selection, Refresh (synchronizes drawing and data). You can drag and drop property values into the drawing as annotations. If the Data Manager has "disappeared", it is often auto-hidden at the edge of the screen.
Why should I draw with grid snap in P&ID, and how do I still hit points outside the grid?
P&ID symbols are matched to a grid; in the ISO templates, snap is set to 2.5 mm. Only then do you reliably hit the connection points of the symbols, and the schematic looks tidy. You can find the settings by right-clicking the snap icon in the status bar under Snap Settings. If you need to snap to a point outside the grid, briefly switch off grid snap with F9 and use object snap. Move objects that have slipped back onto the grid with MOVE via a base point. Transparency should stay switched off in P&ID, as it slows down large drawings.
Why shouldn't I drag P&ID symbols from the tool palette by drag & drop?
When dragging, the symbol is placed uncontrolled and grid snap is bypassed – it then lies off the grid and lines are later connected at an angle. Instead, click the symbol once in the tool palette; it then hangs on the cursor and you set the insertion point on the grid. In P&ID, always keep grid snap turned on; the template is matched to the symbol sizes.
Plant 3D behaves strangely after a longer break or cannot save – what helps?
After long idle times or network dropouts, the connection to the project database can be lost. Typical symptoms are messages that a drawing is being used by another session, or functions that do not respond. Save, close Plant 3D completely (e.g., Alt+F4 and confirm the save prompts) and restart. Recommendation: close Plant 3D before longer breaks.
How do I take over the settings from a project template when creating a new project?
In the Project Manager, choose New Project. On the first page of the wizard, enter the name and location and then enable "Copy settings from existing project". Use the three dots to select the Project.xml file of the template project. Then simply click through the remaining pages with Next, since units, symbol standard, etc. come from the template. On the last page, it is advisable to check "Edit additional project settings after creating project" – if Project Setup then opens, the project has been created completely.
The ribbon or palettes have suddenly moved or disappeared – how do I get them back?
The quickest way is to use the "Workspace Switching" gear to briefly switch to another workspace and then back to the P&ID workspace. Under "Workspace Settings", check whether changes are saved automatically – if this is enabled, accidental moves are applied permanently. Disable the option and deliberately save your preferred state under your own name.
Why does an off-page connector show a yellow exclamation mark even though the connection works?
Plant 3D compares all properties of the connected lines but shows only some of them under "Show Connection". Align differences in fields that are not shown (e.g. comment, slope, custom fields) in the properties of both lines and save both drawings. If the deviations come from inherited fields, e.g. the drawing area, they are intentional – then you can ignore the message. A Data Manager view of the off-page connectors by line tag and connection number helps with checking: only two arrows may appear per number.
Where does the information in the title block come from, and how do I insert a revision row?
Insert the title block and revision row in the layout from the palette of non-engineering items; drawing is done in model space only. The content comes from Project Setup (project details/project data such as project number, address) and from the drawing properties (right-click the drawing in the Project Manager > Properties, e.g. DWG number, title). You do not enter revisions directly in the title block; instead, insert a revision row for each revision and fill it in via the properties. Revision rows are stored in the database and can be analyzed in the Data Manager.
How do I edit P&ID data (many properties at once) in Excel and import it again?
1. In the Data Manager, select the required node, e.g. Equipment, and click Export – "active node only" produces exactly one table; with child nodes, several sheets are created. 2. Change the values in Excel; do not change the column with the internal ID (PnPID), as it is used for matching. If the sheet is protected: Review > Unprotect Sheet. 3. Save the file and close Excel, otherwise it is locked. 4. In the Data Manager, select the same node and click Import. Changed values are highlighted and can be accepted individually or with "Accept All".
How do I keep process-oriented numbering when equipment is added later?
Automatic incrementing does not know the process sequence: it always takes the next higher number, and deleted numbers are not reused either. A proven approach: draw first and leave the tag with a question mark, number later and enter the number manually if needed (with gaps for later additions if necessary). You can change many numbers at once in the Data Manager or via Excel export and import.
Why does the line have a different number before and after inserting a pump?
This is controlled by the symbol's connection type (Class Definitions > Edit Symbol). Pumps are segment group breakers by default: they split the line group, which is why two line numbers are created. Valves are inline objects – the line runs through them. Reducers and spec changes are segment breakers (new segment, same line). Vessels and other equipment are end lines; a line starting there gets a new number. For your own breaker symbols, set the appropriate connection type.
The signal line does not transfer any values between instrument and line. What is the cause?
Whether properties are acquired via a signal line depends on the configuration and the drawing direction. In the configuration shown, acquisition works when the signal line is drawn from the instrument to the object (line, valve or equipment). Also check that both ends are really connected: when you click the signal line, the end must be shown as round; a plus means open. Update connections that have already been drawn with PLANTREFRESHACQUIREDPROPERTIES.
How do I create custom views in the Data Manager, e.g. nozzles by equipment or order status?
In Project Setup, under the Data Manager configuration, choose "Create View" and define the name and scope (project or drawing). Use "New Level" to build the grouping: first filter the object type (e.g. nozzles), then add further levels by fields such as equipment tag, line tag, manufacturer or a yes/no field "ordered". You will then find the view in the Data Manager under the custom project or drawing views. After changes, reload with the Refresh icon.
How do I get symbols from the configuration, e.g. nozzles, into my tool palette?
First open the target palette. Then go to Project Setup > P&ID DWG Settings > P&ID Class Definitions, select the class (e.g. Engineering Items > Nozzles > desired nozzle) and click "Add to Tool Palette" in the toolbar above the preview. The symbol is added at the end of the currently open palette and can be dragged and dropped to another palette.
How do I add my own drawing and project properties, e.g. for the title block?
In Project Setup under General Settings > Drawing Properties, first create a category (e.g. "Title block") and the properties below it (e.g. plant section, building); in the Description field you can store an explanatory text. Enter the values for each drawing in the Project Manager: right-click the drawing > Properties. Create project-wide information (e.g. architect, plant designer) in the same way under Project Details. Both types of values can be used in the title block and in tag formats.
How do I make good use of validation, and what do I do with messages that are not errors?
First define in the validation settings what is checked; without a 3D model, deactivate the 3D checks. After "Run Validation", clicking a message zooms to the object. Open the drawing beforehand via the Project Manager, otherwise it is read-only and corrections cannot be saved. After the correction, refresh the node. Set intentional messages (e.g. drawing frames, manhole nozzles, automatically created signal lines) to "Ignore" with a right-click and hide ignored items.
How do vessels automatically get a visible nozzle when a line is connected?
In the P&ID class definitions, select the equipment class (e.g. Equipment > Tanks > the vessel you want) and open "Edit Symbol". In the "Default Nozzle" row, select a real nozzle instead of the point nozzle, e.g. the flanged ISO nozzle. Plant 3D then places this nozzle automatically when you connect a line; you can replace it with a different one in the drawing at any time. Tip: the Data Manager can only zoom to nozzles that are visible in the drawing.
How do I generate lists, e.g. a valve list, with the Report Creator?
1. Start Report Creator via Windows Start > All apps > AutoCAD Plant 3D folder. 2. Open the project (Project.xml) and choose the scope (entire project or individual folders). 3. Select the report – add company-specific report templates via a custom path. 4. Use Edit to adjust the query and layout. Note: Report Creator lists are for output only; to write values back, use export/import in the Data Manager.
Why can't I correct errors from the validation summary directly in the drawing?
If a drawing is opened via the validation summary, it is read-only. First open the drawing concerned normally via the Project Manager and then click the error in the summary – the program zooms to the location and you can correct it. "Refresh" runs the check again. Messages that are correct from a technical point of view (e.g. nozzles for manholes without a line) can be ignored and hidden.
How do I force a prompt for an edit history entry when a drawing is closed?
The edit history is kept for each drawing at the bottom of the Project Manager; an entry is created when the drawing is saved and closed. To require users to enter a comment at that point, open Project Setup > Project Details and set the edit history prompt to "When closing project drawings". The next time a drawing is closed, a dialog appears in which you enter e.g. "Drawing created".
Why does a question mark appear in the tag of control valves or instruments?
A question mark in the tag means that a component of the tag format has not yet been filled in. For instruments and control valves, this often includes a field such as Area. Right-click the object, choose Assign Tag and fill in all fields, including Area. Control valves receive an instrument annotation by default; you can later swap the valve body and actuator via "Change Body and Actuator".
Validation reports an open line end at a cap or arrow – how do I fix this?
Check the connection: a round grip at the end of the line means connected, a cross means open. To connect, right-click the line > Schematic Line Edit > Attach to Component. To solve it permanently, go to the class definitions: set end symbols such as caps or connection arrows as line end via "Edit Symbol", and place the connection point at the end of the symbol in the block. Use a separate class for this – settings on, say, the flow arrow apply to all child objects. Changes only take effect in open drawings.
How do I extend the equipment annotation with additional lines, e.g. comment fields?
1. Under Engineering Items > Equipment, add the fields under Properties (e.g., Comment2, Comment3, type String). 2. For the class (e.g., Tanks), select the multi-line annotation in the Annotation area and choose "Edit Block". 3. Click a line, use "Assign Format" to select the field under Class Properties and use target properties; create further lines by copying. 4. Close and save the block. Empty fields appear as a dot – a space as the default value makes them invisible.
How do I back up, name and structure tool palettes for my project?
Right-click the palette bar > Customize Palettes. Rename palettes by clicking twice slowly (e.g. with a standard set abbreviation) so that it is clear what belongs together. Via right-click > Export, back up each palette individually as .xtp – strongly recommended before making changes. Create a new group in an empty white area; collapse all groups first, otherwise a subgroup is created. Create new palettes by right-clicking the tabs > New Palette and fill them by drag & drop.
Why is there a question mark after some tags – and why is it sometimes missing despite a duplicate number?
The question mark indicates an ambiguous (duplicate) or incomplete tag. It is appended only to the tag itself. If an annotation is built from individual fields instead of the tag, no question mark appears on the drawing even though the number is duplicated. Therefore always also check tags in the Data Manager and reassign faulty tags there or via right-click > Assign Tag.
How do I connect off-page connectors between two P&ID drawings?
Both drawings must be in the same project. Place an off-page connector at each line end. Only connectors whose line already has a line number are offered for connecting. Therefore connect from the side without a number to the side with a number (context menu or plus grip on the connector > Connect). The line number and other values are then transferred, the connector is shown as connected and you can jump directly to the other side.
When does a newly drawn line get a new line number and when not?
If you start in empty space, at a piece of equipment or at a line group breaker (e.g., a pump), a new pipe line group with its own number is created. If you continue drawing from an existing line or an inline valve, only a new segment of the same group is created. You can change the assignment afterwards: right-click the line to be kept > "Edit Line Group" > Add or Remove, and click the relevant sections.
An error message appears when creating a project on the network drive – what can I do?
Common causes are slow network or VPN connections, missing write permissions or cloud-synchronized folders. You can test write permissions by creating a new text file in the target folder. A proven workaround: 1. Create the project locally in a simple folder (e.g. C:\Projekte). 2. Close Plant 3D. 3. Cut (do not copy) the entire project folder in Explorer and paste it on the network drive. 4. In the Project Manager, use "Open" to select the project.xml in the new location.
The tool palette is marked red in Project Setup. How do I add the project palettes?
Red means that the project's palette group is missing. 1. Open a P&ID drawing. 2. Right-click the title bar of the tool palettes > "Customize Palettes". 3. In the right-hand area, right-click to create a new group and give it a meaningful name. 4. On the left, right-click "Import" to read in the palette files (.xtp) from the template folder one by one and drag them into the new group. 5. Right-click the group to set it as current. Via right-click on the palette > View Options you can set e.g. "Icon with text" for all palettes.
What does the yellow lightning bolt symbol next to a property value mean?
The value is acquired from another object via an acquisition rule, e.g., piping spec, fluid or nominal size from the pipe line group to segments and valves. The source is displayed, sometimes with an English name. Acquisition rules are defined in Project Setup. Note: rules set up later initially apply only to newly placed objects – so define piping specs and rules before the project starts whenever possible.
Why don't colors change after I edited a P&ID symbol, and may I drag it into the palette?
The lines of the original symbols usually have the color "ByBlock"; newly drawn lines get the current setting, often "ByLayer". Do not mix these, otherwise parts react differently to color changes. So do not delete the original line in the Block Editor; modify it instead. An edited block should not simply be dragged and dropped onto the tool palette: the tool then refers to the current drawing and no longer works after purging. New symbols belong in the class definitions via Project Setup.
Which checks should I run before generating lists from the P&ID?
1. Run AUDIT and PURGE in the drawing (including zero-length objects, unused blocks). 2. "Audit Project" in the Project Manager: checks the consistency of the project data and generates a log – only with no open, unsaved drawings, ideally right after a restart. 3. Validation (project, folder or single drawing): engineering check, e.g., open lines, size mismatches, unconnected off-page connectors.
How do I create a list as a PDF with the Report Creator?
Start the Report Creator from the Windows Start menu (Plant 3D program group, or search for "Report"). Under Project, open your project's Project.xml and select the required list under the report configuration, e.g. valve list or equipment list. Use Preview to check the result and Export to create the file. Besides PDF, formats such as Excel, CSV or RTF are available; for print-ready lists, PDF is the most reliable. Under Settings, you define whether the report templates are stored in the project or in a central folder – this should be consistent across the team.
How do I define a uniform file name format for new P&ID drawings?
In the Project Manager, right-click the project name to open Project Setup and switch to Project Details. Under file name format, click Add and assemble the format from fields, e.g. project number, drawing type and drawing number. For each field you can specify whether it is numeric or a string and how long it may be. When a new drawing is created, the program then prompts for exactly these fields and builds the file name from them.
How do I create a filtered list, e.g. only pumps from one manufacturer, as a PDF report?
Start the Report Creator (e.g. type "Report" in the command line). For project-specific reports, copy the report templates from the Plant 3D program data folder to a reports folder in the project and point the Report Creator to the project. Then create a report based on a template (e.g. equipment list), select only pumps in the query, set a filter (field = value) and click "Test result". In the report layout, add or remove fields and adjust headings; output e.g. as PDF.
How do I export only specific columns from the Data Manager to Excel and bring changes back?
In Project Setup, under the data export/import settings, create a separate definition for the class (e.g. "Equipment Order") and select only the fields you need. In the Data Manager, right-click the class > Export and select this definition. Edit the Excel file and bring it back in via Import. As long as the internal ID column is preserved, the import is safe; alternatively, the tag can serve as the key – in which case tags must not be changed. The column order cannot be freely chosen here.
By what rule does P&ID break lines at crossings?
Each line class is assigned a priority. If the priorities differ, the line with the higher priority (smaller number, e.g. 1) runs through and the other is broken. If the priorities are equal, the vertical line is broken and the horizontal one runs through. The administrator defines the priority as well as the layer, color and lineweight of the line types in Project Setup under Class Definitions > Lines (e.g. Primary Line Segment). To change a primary line into a secondary line, right-click it and use Replace.
The off-page connector cannot be connected or does not show a drawing number. Why?
To connect, the arrow must be at the end of a line (do not use the line end symbol). Start "Connect To" on the side without a line number; the open arrows with a number are offered. A yellow exclamation mark means differing values: via "Show Connected" you accept them individually or with "Accept All". The drawing number displayed comes from the drawing properties: right-click the drawing in the Project Manager > Properties and enter the DWG number there.
After an Excel import, the annotation shows different values than the line. What happened?
Fields acquired from the line (e.g., the nominal size or piping spec of a valve) are dark gray in the Data Manager. If they are overwritten by an import, they appear light gray – the value is then considered manually changed and no longer follows the line. Validation then reports, e.g., a size or spec mismatch. Clarify which value is correct. If the line value should apply again, restore the acquisition rule for the field. The drawing audit then aligns the annotations in the drawing with the database.
Validation reports "unconnected component" for a vessel even though lines are connected.
Some symbols contain predefined connection points at which validation expects a connection. Right-click the object and choose Edit P&ID Object's Block to see where these points are. Connect the lines exactly there. For vessels, fixed connection points usually make little sense; you can delete them in the Block Editor and save the block. Then refresh the parent level of the message in the validation summary, and it disappears.
How do I mark a scope-of-supply boundary in the P&ID and enter the suppliers on the left and right?
Place a tie-in/scope-break symbol (segment breaker) directly on the line – it divides the line into two segments while the pipe line group is retained. Then click the left segment and enter the supplier in the Properties palette, and do the same for the right segment. Caution: do not move the symbol along the line, otherwise the segments will not be merged again. Instead, remove it (Delete or Ctrl+Z) and place it again.
How do I select only the actuator of a control valve, e.g. for the fail-safe position?
Control valves consist of a group (valve body and actuator). The PICKSTYLE system variable toggles group selection: 0 = individual objects selectable, 1 = group. Set PICKSTYLE to 0, click the actuator and set e.g. the fail-safe position in the Properties window. Swap the actuator or valve type by right-clicking and using "Edit Control Valve" or "Replace". Afterwards set PICKSTYLE back to 1.
Why do my valves with actuators appear in the Data Manager under instruments instead of under hand valves?
This is standard behavior: as soon as an actuator is assigned to a valve, it is treated as a control valve and listed under instrumentation, because it needs I&C properties there. Only valves without an actuator appear as hand valves. Once an actuator assignment has been made, it cannot simply be undone. If you want to list actuated valves under hand valves, you must create custom symbols with an integrated actuator in the hand valve class – so define the rule before the project starts.
I cannot assign a tag number even though it is not used anywhere. What helps?
Usually there is still a database entry of a deleted object. Save and close all drawings of the project. Then right-click the project name in the Project Manager and select Audit Project. The function reconciles drawings and database and removes orphaned entries; you can see the log with F2 in the text window or in the log file. If the dialog is marked red or reports unsaved data, restart the program without opening a drawing first. After that, the number can usually be assigned again.
What does the validation message mean that an annotation is too far from the object?
Validation checks whether annotations are within a defined distance of the associated object so that they can be assigned unambiguously. Often, after a line is split, e.g., by a reducer, the annotation still belongs to another segment. Check via the object which values the annotation shows. If it belongs to the wrong segment, delete it and place it again: right-click the line > Annotate > Line Tag. If it is merely too far away, move it closer and refresh the validation.
What is the difference between pipe line group and line segment?
The line group is a database entry that combines a pipe line number from a unique start to a unique end. Properties such as line number and fluid are stored in the group. Line segments are the drawn sections of this group; a new segment is created wherever a parameter changes, e.g., at a reducer. Valves or flanges do not split the line. In the Data Manager, you will find both listed separately under the lines and can check there whether every segment is correctly assigned.
Why does my new line get the same number as an existing one, and how do I separate them?
If you start a line at an existing line, it becomes part of the same line group and takes over its number. If you start in empty space or at a piece of equipment, a new group is created. If a branch, e.g., a bypass, should get its own number, right-click the existing line, choose Edit Line Group > Remove, select the section and confirm with Enter. Use Add to combine sections again. Caution: when changing the group, group properties such as the fluid are lost and must be reassigned.
Can I build an additional tag, e.g. a customer tag, from several fields?
Yes, with a calculated field. Under Properties, click "Add", choose type "Calculated" and in the Expression Editor combine the desired properties with the "Concatenate" operator; put separators in quotation marks in between (e.g. "-"). Optionally set it to read-only. The value is generated automatically without you having to update. Created at the "Engineering Items" level, it is available for all objects in lists – this way you keep your own tag and the customer's tag separate.
How do I prevent empty properties (e.g. Supplier) from appearing as dots on the symbol?
In Project Setup, under P&ID DWG Settings > P&ID Class Definitions > Engineering Items, enter a space as the default value for the property in question (e.g. Supplier). This applies to all newly drawn objects; the annotation then remains invisible. For existing objects, add the space in the corresponding column via the Data Manager. A space also has the advantage that you can filter for it specifically in bills of materials.
How do I specify a uniform file name format with a selection list for new drawings?
In Project Setup under General Settings > File Name Format, you define the components, e.g. project number – drawing type – drawing number. You can enter a fixed project number directly as a separator (adjust it when copying the project!). For a selection list, first create a new list under P&ID Class Definitions > Pipe Line Group on a list field via "Edit List", without assigning it to the field. Then select this list as the field type in the file name format. If it does not appear immediately, close Project Setup and reopen it.
When is the SQLite database sufficient and when do I need SQL Server?
The option "Single user – local SQLite database" stores the database as a file in the project folder. It is suitable for projects where one or two people work at the same time; the project can be moved as a whole and is backed up with the folder's normal data backup. If several people regularly work in the same project at the same time, a multi-user database on SQL Server (e.g., SQL Server Express) should be used. It must be set up by the administrator and backed up separately, and all users need access to the server.
Can I maintain selection lists, e.g. the piping spec or fluid list, via Excel?
Yes. In the P&ID class definitions, open "Edit List" for the field (e.g. in the pipe line group) and export the selected list to Excel. Edit the file, save it and import it at the same place – select "update existing list", not "new list", otherwise a second list is created. Important: the import only adds; rows deleted in Excel are kept and duplicate values are ignored. Afterwards, check the field's default value and set it to the empty entry, otherwise all objects automatically receive a value.
At which level do I create custom property fields, and what do I need to watch out for?
As high up as possible, ideally under Engineering Items: fields created there are inherited by all subclasses and appear e.g. in the export of all equipment. Fields on a single class only (say, tanks only) are missing from the export of the parent level. Give the internal property name in English and without spaces or special characters; the display name may be in German. Choose the type (string, numeric, yes/no, selection list, symbol list, acquisition, calculated) carefully – it cannot be changed later.
New P&ID drawings have the wrong layout or no title block. What is the cause?
The template for new drawings is defined in Project Setup under Paths as the P&ID drawing template file (DWT). If the program cannot find the specified file, it uses a different template. Copy the path, check in Windows Explorer whether the DWT is actually there and, if necessary, select the correct template. Remove drawings already created incorrectly via right-click "Remove Drawing from Project" and create them again. In the New DWG dialog, you can always see at the bottom which template is used.
The project behaves incorrectly after changes to the configuration – what can I do?
1. If an error message appears in Project Setup: close Plant 3D immediately and restart; do not continue working. 2. Start Plant 3D without an open drawing, right-click the project in the Project Manager > Audit Project and review the log file – errors found are repaired in the process. 3. In individual drawings, the AutoCAD commands AUDIT and PURGE help. 4. If the problem persists, create a new project based on the faulty one and copy the drawings into it.
How do I make a new piping spec selectable for pipe lines in the P&ID?
In the Project Manager, open Project Setup > P&ID DWG Settings > P&ID Class Definitions and select the pipe line group. There, edit the selection list of the piping spec property (NominalSpec) and add the name of the new piping spec via Add Row. For the link to the 3D model to work, the name must match the piping spec name exactly, and the piping spec must also be copied into the project via the Project Manager.
I set up an acquisition rule, but existing objects do not show the value. What can I do?
Acquisition rules only apply to objects that are drawn or connected after they have been set up. To apply them to existing objects, enter PLANTREFRESHACQUIREDPROPERTIES on the command line (it can be found via autocomplete, e.g. with "REFRESH") and choose whether the current drawing or the whole project should be updated. All acquired fields are then filled again. Check the result in the Data Manager, e.g. in a custom view that you create under Project Setup > Data Manager.
Why does a vessel prompt for scaling but a pump for the rotation angle?
Each symbol class has its own insertion behavior: whether it is scaled, rotated or mirrored and whether a tag is prompted for. This is stored per project in Project Setup under P&ID DWG Settings > Class Definitions. Select the class there (e.g. Equipment > Filters), click Edit Symbol and set the insertion behavior you want. Since the configuration is stored in the project, you should use a customized project as the template for new projects. Changes to the configuration are the CAD administrator's job.
How do I define a title block that fills itself automatically from project and drawing data?
In the P&ID class definitions, create a class "Title Block" under Non-Engineering Items > Annotation and add a title block via "Add Symbol" (no tag, no scaling). In the block, use "Assign Format" to assign project details and drawing properties, or use AutoCAD fields (e.g. date, file name). Advantage over a title block in the DWT: changes to the block are updated in all project drawings. Create your own project details in Project Setup beforehand.
Can a symbol change depending on a property, e.g. an actuator with a fail-safe position?
Yes, with a field of type "Symbol List". 1. Open the actuator block with "Edit Block", adapt it for each variant and save it under a new name with "Save Block As" (it is stored in ProjectSymbolStyle.dwg). 2. In the class, add the variants from this file with "Add Symbol". 3. Create a symbol list field and assign the matching symbol to each value. In the drawing, you then change the value in the properties. Valve and actuator form a group – with PICKSTYLE 0 you can select the actuator on its own.
Why is a symbol I created in one project not available in other projects?
Symbols and classes always belong to the respective project: the blocks are stored in its ProjectSymbolStyle.dwg, and palettes refer to this file of the current project. For other projects, use the project comparison in Project Setup: select the source project (it must be closed), transfer the blocks first, then the classes and properties, and synchronize. Symbols from other standard sets (e.g. DIN instead of ISO) often have different base sizes and are only partially compatible. Ideally: finish the configuration before projects start.
How do I restore the original tool palette if it has been overwritten?
Right-click the title bar of the palette and select Customize Palettes. In the empty white area on the right, right-click to create a new group, e.g. "P&ID ISO Original". Drag and drop any palette into it and set the group as current by right-clicking. Then, on the left, import the saved palette files (.xtp) one by one via right-click > Import and drag them into the new group. Afterwards remove the auxiliary palette again; change the order by drag and drop. Exporting works the other way round.
Why does a reducer divide the line into segments, but another part does not?
The behavior is defined per symbol in Project Setup (class definition > Edit Symbol). Types include: Inline (sits in the line), Endline (e.g., vessel), Segment Breaker (e.g., reducer – new segment with its own nominal size or piping spec), Line Group Breaker (e.g., pump – new line number) and no connection (annotations). If a component is classified incorrectly, the administrator corrects this; it applies to newly inserted objects.
How do I compose the line number from drawing properties and a sequential number?
1. Create the values (e.g., plant system, section number) as drawing properties. 2. In the pipe line group, create fields with the same names and the default value "Acquisition" from the drawing properties ("Acquisition" follows later changes, "Initial" writes only once). 3. In the group's tag format, use "Modify" to add the fields and, for each field, choose e.g. a fixed-length number under "Define Expression". 4. Update the tag format of the pipe line segments and annotation blocks in the same way.
How do I increment tags automatically, e.g. pumps from 500 in steps of five?
In the class's tag format, choose "Define Expression" for the number field and create a counter at project or drawing level; set the start value and increment there. A counter on the parent tag format applies to all subclasses – pumps, vessels, etc. would be numbered together. For separate number ranges, each object type needs its own tag format with its own counter. Since drawings are rarely created in numerical order, many users assign numbers afterwards via Data Manager export to Excel and reimport.
How do I set up my own drawing template (DWT) for P&ID projects?
1. Under Options (right-click in the command line > Options), on the Profiles tab, copy the current profile, rename it and set it current. 2. Under Files > Template Settings, set the template path to a central server folder. 3. Copy the original Plant 3D DWT there, open it and adapt it. 4. In Project Setup, assign the new template under the P&ID DWG Settings. Important: never save a drawing assigned to a project as a DWT – it carries a project ID and causes errors.
How does a nozzle automatically acquire the tag of the equipment and of the connected line?
For nozzles, add two fields under Properties (e.g., EquipmentTag, LineTag), default value "Acquisition", source Equipment > Tag or Pipe Line Segments > Line Tag. The segment first acquires its value from the tag of the pipe line group – use the tag, not the line number. New objects receive the values automatically. For existing objects, enter REFRESH in the command line, choose the command to update acquired properties and specify the drawing or project.
Why doesn't automatic valve numbering count back after deletion?
This is intentional: with automatic numbering, a number once assigned is not reused, so that it does not later turn up for a different component in a list that has already been passed on. The counter is maintained in Project Setup in the tag format of the respective class via a project field. An administrator can reset it; numbers already assigned are then skipped until a free one is found. Resetting should only be done deliberately and by agreement.
When creating a drawing, "Value cannot be more than … characters" appears – what can I do?
The message comes from the file name format in Project Setup (Project Details). A maximum length or the type "numeric" is defined there for the field in question. Open the file name format, select the field and adjust the length or type (String instead of numeric); accept with Apply and OK. If the program does not accept the change, it helps to switch the type once, apply, and switch it back. If the behavior persists, check whether the current update for your program version is installed.
How do I customize an annotation, e.g. on reducers, without changing the original?
In the class (e.g. Inline Assets > Reducer), select the template in the Annotation section and click "Add Annotation": Plant 3D copies the block under a new name. Modify it with "Edit Block" and adjust the fields with "Assign Format". To make the class use it by default, change the Annotation Style at the very bottom of the properties. If you want to be prompted for the position when placing it, select automatic insertion with prompt under "Edit Annotation". Re-place existing annotations.
How do I turn my own AutoCAD block into an intelligent P&ID symbol?
1. Create a block with BLOCK (objects on layer 0, properties ByBlock, sensible base point) and save the drawing. 2. In the P&ID class definitions, select the appropriate class or create one via right-click > New. 3. Choose "Add Symbols", use [...] to select the drawing containing the block and then the block. 4. Define the layer, scale, rotate/mirror, tag prompt, connection type (equipment: Endline) and automatic nozzle. 5. Choose "Add to Tool Palette". Modifying a similar existing block saves work and keeps the proportions right.
Specs & catalogs (57)
Does it matter whether I create a new component as an instrument, valve or fitting?
Yes. The component type determines the insertion behavior when drawing and the group in which the component appears in bills of materials and isometrics. A measuring device should therefore be created as an instrument, and a connecting piece as a fitting. Define the type, graphics and end types right at the start, because if you change them later, values already entered must be re-entered. Components for vessel nozzles belong in the nozzle catalog, all others in the pipe, valve or instrument catalogs.
How can I quickly see which components and nominal sizes a spec contains?
Right-click the spec in the Project Manager > "Spec Viewer". At the top, only the smallest and largest nominal size is shown for each component type – you cannot see there whether sizes in between are missing. Select a component: the lower area lists every size actually contained individually. The viewer also shows when several components are assigned to one nominal size.
Which specs in the project must I not delete?
Always keep the system specs supplied with the software: Custom Parts (for user-defined components, e.g. via the tool palette), Instrumentation (instruments), Pipe Support (pipe supports) and Placeholder (placeholders, in case a component is not found in a spec). Functions and tool palettes access these directly. You can remove supplied sample specs that you don't use. To add your own specs, right-click "Pipe Specs" in the Project Manager > "Copy Spec to Project".
How do I get a new spec into my Plant 3D project?
In the Project Manager, right-click the Pipe Specs node and choose Copy Spec to Project. Select the file with the .pspx extension from your spec folder. Plant 3D copies the .pspx file and the associated .pspc file to the project's Spec Sheets folder. The spec is then available for selection when drawing; you may need to restart Plant 3D once.
When I add a component to the spec, an exclamation mark appears. What does that mean?
Usually a change to the current component in the catalog has not been saved yet. Read the message carefully: save the changes to the component (do not cancel or discard), after which the component can be added to the spec. Save the spec regularly as you work, e.g. before editing the branch table – otherwise some new components may not appear there.
Which files belong to a catalog and to a spec?
A catalog is a .pcat file; next to it is a folder of the same name with preview images and, if applicable, a DWG subfolder for block-based components – the two must always stay together. A spec consists of two files: .pspx (a ZIP with XML, including a reference to the catalogs used) and .pspc (contains a copy of all catalog data used). You always work in the catalog; the spec is compiled from it. Tip: in Windows Explorer, turn on file name extensions under "View".
Why does Plant 3D insert an eccentric reducer when changing nominal size, or fail to find a route?
If the spec contains both concentric and eccentric reducers, the program uses the component with priority 1. If the eccentric reducer is at the top, routing often cannot resolve the resulting elevation offset. In the part priority for reducers, therefore always put the concentric version first. You can specifically select the eccentric reducer when needed while drawing via Substitute Part.
On import, the Spec Editor reports that the Excel file is not an exported file – what's wrong?
First check whether the Excel file is still open, and close it. Another common cause is importing in the wrong place: a file exported in the Catalog Editor must also be imported there; a spec export file correspondingly in the Spec Editor. Also make sure that in Excel you only changed values and did not rename any columns or worksheets.
How do I avoid constantly copying the piping spec back and forth between library and project?
You can open the piping spec in the Spec Editor directly from the project's Spec Sheets folder and edit it there. Close all other open piping specs first so that you do not accidentally work in the wrong file – the storage location is shown in the title bar at the top. Regularly save the current version back to your library and, if in doubt, compare the modification date so that two editing states do not overwrite each other.
Why does Plant 3D only insert a placeholder with a yellow exclamation mark at a connection instead of the component?
The placeholder appears when a connection is defined but no matching component is found. Check: 1. Is the connecting part included in the piping spec? 2. Do the end types of the connections in the catalog match? 3. Do both components have the required matching values, e.g. material and nominal size, if these are compared in the connection settings? 4. Are there several entries for the same end type combination? Then the first one is used – remove conflicting combinations.
How do I edit many sizes of a part at once in the Catalog Editor?
Use the Property Editor (button at the bottom left of the Catalog Editor). It shows all sizes of the selected family as a table, so that you can enter values column by column or paste them with Ctrl+C/Ctrl+V, e.g. an addition to the order text. Save changes beforehand with "Save to Catalog", otherwise the editor still shows old values. Apply them with "Apply". For extensive changes, the Excel export is often faster.
How do I bring a part from another catalog into my own?
In the Spec Editor, additionally open the source catalog via "Open Catalog" (plus icon), find the part on the "Catalog" tab – show the search row via the column filter icon – and copy it with Ctrl+C. Switch to your catalog and paste it with Ctrl+V. Make sure you are on the "Catalog" tab and not the "Spec" tab, as the context menus differ. For variants, use "Duplicate Component" instead of creating a new one.
Why can't I branch off a line even though there are pipes in the piping spec?
For branches, every piping spec needs a branch table. In the Spec Editor, open the branch table in the piping spec, click "Edit" and add the possible branch types (e.g. tee, nozzle or stub-in). Then select the nominal size combinations of header and branch, and assign the appropriate branch type with a right-click. Without an entry, Plant 3D does not create a connection at that point.
My decimal value 1,6 becomes 16 after saving. What am I doing wrong?
The Spec Editor interprets decimal separators according to the Windows regional settings. With German settings, enter values with a comma; a period is sometimes ignored, so that 1.6 becomes 16. Spot-check the values after saving and after every Excel import. Always select units such as weight from the drop-down list instead of typing them as text.
How do I create a part variant in the catalog without changing the original?
In the Catalog Editor, filter and select the component, then right-click > "Duplicate Component". The copy gets a new, unique long description (family), e.g., with a reference to the pressure rating or purpose. Under "Sizes", adjust the dimensions and purchase text. Important: when changing port data, always edit both sides (port 1 and 2). Accept with "Save to Catalog". Duplicating in the catalog is safer than changing values afterwards only in the piping spec.
What is the difference between "Save Catalog" and saving in the part?
The button at the bottom right saves only the component currently being edited to the catalog. "Save" at the top or in the File menu writes the entire catalog, including configuration, back from memory. If several people are working on a catalog at the same time, save only individual components; saving the whole catalog would overwrite your colleagues' changes. Only create new properties via the property editor when you are working in the catalog alone.
Why can't I attach an actuator to the valve I created myself?
When creating a new valve in the Catalog Editor, the selected graphic determines whether an actuator can be attached. Choose a valve graphic of the type Valve Body; with the variants that show a fixed operator, no separate actuator can be attached. Create the actuator as a separate component of the type Actuator; double-click the dimension preview to see which dimensions must be entered, e.g., for a handwheel.
Where can I get additional catalogs, and can I use them without checking?
The "Content Packs" link at the bottom of the Spec Editor takes you to catalogs and piping specs in the Autodesk App Store, some free, some paid, often in German and English. Close all Autodesk programs before installing. The content usually contains only geometry data and not always complete ordering information; a check for completeness and correctness is not guaranteed. Therefore do not take over parts without checking them; verify dimensions and texts against the manufacturer's or standards documentation.
I changed components in the catalog, but nothing arrives in the project – what do I need to do?
The piping spec in the project is a copy and knows nothing about later changes. 1. In the Spec Editor, update the piping spec from the catalog and save it. 2. Replace the piping spec in the project: either remove it in the Project Manager and copy it again, or overwrite the .pspx and .pspc files in the Spec Sheets folder (check the modification date). 3. Plant 3D then shows a piping spec update notification at the bottom right, which you use to update components already placed. Use the Spec Viewer to check whether the component is included.
What is the best way to test a newly created piping spec?
Copy the piping spec into a test project and draw every component type at least once: a line with elbows, a branch (is a tee placed?), a change in nominal size (concentric reducer?), flanged and threaded connections. Then generate an isometric. If a part is missing its isometric symbol (SKEY), the line is broken at that point; a rectangle with an asterisk indicates a wrong SKEY with the correct type. Correct errors in the Catalog Editor and then update the piping spec.
How do I create weldolets or weld nipples that are placed directly on a pipe?
In the Catalog Editor, do not create the part as a fitting but under the Olet component type, because only then can it be placed on a continuous pipe. Port 1 is the header side; enter the diameter of the pipe it is welded onto there. Port 2 is the outgoing threaded connection. You need a separate size for each header nominal size. After inserting it, check whether the part is oriented the right way round, and otherwise swap the ports.
Why are part blocks missing when I pass my catalog on to colleagues?
Each .pcat file has a subfolder of the same name in which preview images and block-based parts are stored. Therefore do not copy a catalog in Windows Explorer; instead, create a new catalog in the Spec Editor based on a working existing catalog. You can then delete the components you do not need and paste the parts you want from other catalogs with Ctrl+C/Ctrl+V. Always pass on catalogs together with this subfolder.
What does the yellow exclamation mark in the spec editor mean?
Several components of the same type exist for the same nominal size, and no priority has been set. When drawing, Plant 3D always inserts the first component. Click the exclamation mark and set the order: for elbows, the 90° elbow must come first (otherwise, e.g., a 45° elbow is trimmed to other angles), for reducers the concentric one and for tees the equal (non-reducing) tee. Only confirm everything at once after you have checked each entry.
How can I build order texts or size descriptions automatically in Excel?
In the exported Excel file, use the CONCATENATE (or CONCAT) function and build the text from the existing columns, e.g. part description, standard, outside diameter, wall thickness and material, separated by spaces or hyphens. In the German version of Excel, the arguments are separated by semicolons, not commas. Drag the formula down over all rows, save the file and import it back into the Catalog Editor.
How do I limit the nominal sizes of a part in the piping spec?
In the Spec Editor, double-click the component or open "Manage Sizes" and deselect all nominal sizes that are not needed. Basic rule: only nominal sizes for which a pipe exists in the piping spec should be available. If there are several pipes per nominal size (e.g., different wall thicknesses), select exactly one here – a piping spec must be unambiguous, otherwise Plant 3D always takes the first one.
Why does Plant 3D place a placeholder flange or a placeholder gasket?
Plant 3D did not find a suitable part in the active piping spec. Most common cause: the pressure rating or facing of flange, gasket and mating flange do not match or are not entered at all for one part. Check these values in the Catalog Editor for all parts involved, update the piping spec and replace the placeholders. As a check, you can create a custom view in the Data Manager that lists the parts by piping spec and short description – placeholders then stand out immediately.
Can I reuse my customized catalogs in a newer Plant 3D version?
In practice, catalogs and piping specs from recent versions can usually be reused without modification, so you can also use the Shared Content Folder for a newer version. Nevertheless, keep the older version installed until all Spec Editor functions have been checked in the new version. Do not migrate a running project to a new version in the middle of the work; plan the switch for the start of a project instead.
Why does the wall thickness show "Varies" even though I entered a value?
Each part has separate values for each connection (Port 1, Port 2). If you have entered a value for only one port, the values differ and "Varies" is displayed. Activate "All Ports" in the dialog, and the value is set for both sides at once. Different values per port are only intended for parts such as reducers.
Which description should be maintained in the catalog as the order text?
The purchase text is the long description of the size (Long Description (Size)) – it appears in parts lists and isometrics. It should be complete enough to order without further queries: component type, ordering standard, nominal size or dimensions with wall thickness, pressure rating and material. The long description of the family is only the generic term and is not sufficient for ordering. An inspection certificate belongs in the design details rather than the material code. Purchased or supplied catalogs are only a starting point – always check purchase texts and wall thicknesses.
I moved components to another catalog – why does my piping spec no longer work?
The piping spec refers to the component in the original catalog. First check whether the component exists in the new catalog. Then open the piping spec, remove the old component with Remove from Spec, select the new catalog at the bottom and add the component again with Add to Spec. Save the piping spec and then replace it in the project.
How do I edit catalog data (e.g. wall thicknesses or order texts) in Excel and import it again?
1. In the Catalog Editor, filter to exactly the components you want. 2. Choose "Export" – the current catalog filter is exported, i.e., everything listed below, regardless of the selection; the complete catalog would result in many worksheets. Ideally, store working files in a separate export folder. 3. Edit in Excel, e.g., build the column for the purchase text (Long Description (Size)) with CONCATENATE from description, material, outside diameter and wall thickness. 4. Save and close the Excel file – open files cannot be imported. 5. "Import": changed components are highlighted in yellow; review the changes, accept them individually or all at once using the arrow buttons and confirm with "Apply" or OK.
How do I correctly create my own catalog or a new piping spec?
In the Spec Editor, always use "Create Catalog from Existing" or create a piping spec from an existing catalog. Only then is the required folder structure with all subdirectories created. Do not copy or rename catalog and spec files in Windows Explorer – finished files may at most be moved. Also, never work in the default catalog; always work in your own copy.
Why do threaded parts engage twice as deep as they should?
The engagement length is evaluated on both components. If you enter it on both the female thread (e.g., coupling) and the male thread (e.g., nipple), it is counted twice. Therefore define consistently on which side the engagement length is maintained – either always on the female thread or always on the male thread – and enter 0 on the mating part.
Where do the gasket and bolt set at flange connections come from, and why can't I insert them myself?
Gaskets, bolt sets, welds, etc. are connection parts (called "Fasteners" in the Spec Editor). They are created automatically when two end types meet according to the connection settings, and generally cannot be placed manually. For flange connections, the program checks, among other things, whether pressure rating, facing and nominal size match. For this to work, matching gaskets and bolt sets must be included in the piping spec and the corresponding values must be entered for all components involved.
Can I simply add new rows for additional sizes in the exported Excel list?
No. Each size has an internal identifier stored in hidden columns, which the import uses to match the rows. New rows without an identifier find no counterpart, and copied rows would overwrite the original row. Therefore create additional sizes in the Catalog Editor first (e.g. duplicate the size and save), then export and enter the values in Excel.
Does a piping spec in the project work without access to the content folder?
Largely yes: when copied into the project, the piping spec is placed in the project folder "Spec Sheets", and the .pspc contains all catalog data. This allows you to draw without the content folder being accessible. The exception is block-based parts (e.g. valves with stored DWG geometry): these refer to the DWG subfolder in the content folder. To administer the piping spec, on the other hand, you always need the associated catalogs.
How do I set up the branch table so that tees are inserted at branches instead of pipe-to-pipe?
1. In the Spec Editor, open the Branch Table tab and edit the legend: add branch types, e.g., tee, reducing tee or tee plus reducer. 2. Select the cells in the table (multiple selection with Ctrl or Shift) and assign the desired branch type via right-click. Only combinations for which matching components exist in the piping spec are offered. Additional variants marked as permitted serve only as documentation in the export and do not affect drawing.
Why are two bolt sets placed for wafer valves or spectacle blinds?
The component has the wrong end code. Wafer-type components (e.g., wafer butterfly valves, orifice plates, spectacle blinds) must have the end code WF at both ports, not FL. Plant 3D then places only one continuous bolt set. To change it in the Catalog Editor: select the component > connection port properties > set the end code to WF, use the arrow to switch to the other side and select WF there as well. Choose "Save to Catalog" and update the piping spec.
How do I turn a manufacturer's STEP model into a catalog part?
1. Import the STEP model into a DWG, explode blocks until only solids remain and remove unnecessary details. 2. Place the base point at the future connection and create a uniquely named block. 3. Use the PLANTPARTCONVERT command to define the ports (point, direction, accept, add, exit). 4. In the Catalog Editor, create a new component with block graphics and use "Select block from model" to choose the DWG containing the block. The DWG must remain permanently accessible.
After updating the piping spec, properties such as the material are missing – why?
When updating from the catalog, the component data in the piping spec is replaced by the catalog values. Values that you entered only in the piping spec via property override can be lost in the process. If connections depend on these values (e.g., material matching), placeholders are inserted afterwards. Therefore enter values you need permanently directly in the catalog whenever possible, and check the properties in the Spec Editor after every update.
How do I get connection points placed automatically in long pipes?
For the pipe in the catalog, enter a fixed length instead of a variable length, e.g. 6000 mm. Plant 3D then automatically divides the line into sections of this length. Which connection is placed between them depends on the end type of the pipe: a weld for butt-weld ends, and the appropriate connecting part, e.g. a coupling, for other end types.
Should each user use their own catalog folder?
No. By default, the installation creates a local content folder with several content packs (e.g. a shared catalog for nozzles, supports, instruments and placeholders, as well as standards-based catalogs). In production use, a shared network folder is recommended so that all users work with the same catalogs and piping specs and nobody has to maintain their own set separately. After changing the content path, restart the Spec Editor, as it reads the configuration at startup.
How do I create a component for the piping spec from a solid (e.g. STEP or a manufacturer model)?
1. Insert the solid at 0,0,0 and align it with the X axis. 2. Use BLOCK to create a block with base point 0,0,0 and save the drawing. 3. Convert it into a Plant part with the function for block-based parts and set the center point and direction at each connection; finish the function with "Exit", not with Enter. 4. In the Spec Editor, create a component with custom graphics and assign the appropriate block to each nominal size. For many sizes, parametric scripts are more efficient.
I created a new end code, but the connection does not work for my colleagues. Why?
Newly defined end types (end codes) are stored locally in the program directory of the respective computer, whereas the connection settings are stored in the project. Each user must therefore create the end codes identically on their own computer. Agree on new end codes within the team and document the names. If they are missing, the connections are not created or messages such as "Parts cannot be connected" appear.
How do I create a part in the catalog that does not exist yet?
In the Catalog Editor, choose "Create Component". 1. Specify whether it is a parametric component or an AutoCAD graphic (block). 2. Select the component type (e.g., flange, valve, fitting) and the matching base shape. 3. Enter the dimensions for each nominal size: with 0, the dimension is calculated automatically; with -1, the element is not displayed. 4. For each port, define the end code, pressure rating and facing, and assign the long description/purchase text. Then add it to the piping spec and use it in the test project – always try out new components before using them in production.
Can I edit the piping spec file (.pspc) directly?
A piping spec consists of the .pspx (a compressed file containing, among other things, the component list, branch table and priorities) and the .pspc, an SQLite database with a complete copy of the component data from the catalog. That is why a component in the piping spec can have different values than in the catalog. Technically, the database can be opened, but because of the internal links, an incorrect entry can quickly destroy the piping spec. Therefore always make changes via the Spec Editor.
How do I specify whether a tee, a reducing tee or a nozzle is placed at branches?
In the Spec Editor, open the branch table. 1. Use "Edit Legend" to create the permitted branch types, e.g., pipe-on-pipe/nozzle, equal tee, reducing tee or tee with reducer. 2. In the matrix of header and branch sizes, select the cells (Ctrl + left mouse button for multiple selection) and assign the appropriate branch type. Plant 3D only uses components contained in the piping spec; if one is missing, it points this out. The basis should be the branch specifications of your piping spec definition.
How do I specify which connecting part is inserted when two end types meet?
In the Project Manager, open Project Setup > Plant 3D DWG Settings > Connection Settings. The upper section shows which end types may be connected directly to each other; in the lower section you define connections in which a part is inserted (e.g. nipple or coupling). There, assign a connection name without special characters or spaces, select the two end types and the part to be inserted, and specify which values must match (e.g. nominal size, material). The part must also be present in the piping spec.
How do I structure my catalogs sensibly so that the Spec Editor stays fast?
A split by material and function has proven effective, e.g., pipes/fittings per material, valves, instruments and a separate gasket catalog, since gaskets are used across materials. Delete unneeded sizes and standards in copies. The standard end codes are predefined in the program; you can add your own. An emptied catalog initially keeps its file size; after a backup, this can be reduced with an SQLite tool using the VACUUM function. Never work in the original catalogs, always in your own copies.
How do I set up a custom flange connection, e.g. for two different mating flanges (tongue/groove)?
1. With a drawing open, go to Project Setup > Plant 3D DWG Settings > Connection Settings and use "Add" to define two new end types (end codes) with "Flange" checked; use letters only for the names. 2. Create the connection of the two end codes with gasket and bolt set and select the matching properties (nominal size, pressure rating, facing). 3. Define that the mating flange is placed whenever a pipe is encountered. 4. Enter the end codes for the flanges in the Spec Editor.
Why are new rows that I add to the exported Excel list not imported?
Each size has an internal identifier in a hidden column of the Excel file. The import uses this identifier to match the rows. If you copy a row, the identifier is duplicated – the last one imported overwrites the first. New identifiers cannot be created in Excel. Excel is therefore only suitable for changing existing entries. Create new sizes or variants in the Spec Editor first (e.g. with "Duplicate Component"), export again and do the fine-tuning in Excel.
How do we set up a shared catalog folder (content folder) so that several colleagues work with the same catalogs?
1. Start the Spec Editor via right-click "Run as administrator". 2. Under Tools > Shared Content Folder, click the three dots and select a folder on the network drive to which everyone has write access. 3. Only the first user checks the box to copy the local content so that their content is transferred to the network folder; all other users select the same folder without the check mark – otherwise the content would be overwritten. The setting applies per computer, not per user, and must be made on every workstation with administrator rights. Do not delete or rename the existing CPak folders; the program expects them.
How do I add an additional property to a catalog, e.g. an English description?
In the catalog, open the property editor ("Manage Properties"), enter the name without spaces or special characters and choose whether the property applies at part family or part size level. Be sure to select "All Parts" instead of only the current part, otherwise the field will be missing for other parts. Apply with "Add" and "Apply". A deleted property name may not be reusable later – so plan the names in advance.
How do I bring a modified piping spec into an existing project and existing drawings?
Option 1: in the Project Manager, remove the piping spec and insert it again with "Copy Spec to Project". Option 2 (with Plant 3D closed): copy the .pspx and .pspc files from the content folder into the project folder "Spec Sheets" and replace the existing ones. Then open the drawing: a notification about the spec update appears in the status bar. Right-click to start the check and update the parts. Afterwards, check in a part's properties whether the new values have been applied; if in doubt, place the part again.
I only have the piping spec left, but no catalog – can I recover the catalog?
Yes. In the Spec Editor, export the piping spec in Excel format for the Pipe Catalog Generator, start the Pipe Catalog Generator, open and validate the file, and save the result as a new catalog (.pcat) or add it to an existing one. This only works for script-based parts, not for block-based ones. Identical parts from several piping specs are created twice. Since the associated catalog subfolder is not created in the process, copy the parts into a properly created catalog afterwards.
How does Plant 3D decide which mating flanges, gaskets and bolt sets are placed automatically?
The basis is the end codes of the component ports (e.g., FL = flange, BV = butt weld end, PL = plain end, THDF/THDM = female/male thread). Which codes exist is defined in the program; what happens when they meet is defined per project in Project Setup under Plant 3D DWG Settings > Connection Settings. There it is specified, for example: if FL meets FL, a gasket and bolt set are inserted, provided nominal size, pressure rating and facing match; if FL meets a weld or plain end, a mating flange is placed.
Where can I get better catalogs than the ones supplied, and what do I need to watch out for when installing them?
Additional content packs (e.g. German-language pipe and fitting catalogs or steel construction catalogs) are available in the App Store, accessible via the Plant 3D start page; many of them are free. Downloading works without administrator rights, but installing into the Shared Content Folder does not. Back up your existing catalogs before installing, as an installer can overwrite catalogs of the same name. Check downloaded content before using it, as it may contain errors or incomplete information.
Plant 3D – 3D model (20)
How do I flip a fitting during insertion if it is placed with the wrong connection?
While inserting, press the Ctrl key to cycle through the component's connection points, then place it. To check whether the connection is correct, turn on the connection indicators under visibility at the top and click the connection point between the components; Substitute Part shows the connection type (e.g. butt weld or threaded connection). To remove an unwanted connection, select the connection point and press Delete.
How do I select an entire connected line and hide the rest?
First make sure the affected layers are not locked. Click a pipe, right-click > Add to Selection > All Connected Parts (or connected line number). Then right-click again > Isolate > Isolate Objects – only the selected line remains visible. In the Properties palette, the entry "*VARIES*" tells you that the selection contains different line numbers.
Why is no isometric generated for my pipe?
The prerequisite is that all connected parts have a line number – without a line number, no isometric is created. If an error notification appears at the bottom right of the status bar, click it to open the log; it states why creation failed (e.g. database or network problems when generating the intermediate file). Also check whether a spec update is recommended, and run it first.
Plant 3D places an elbow with an exclamation mark even though my piping spec does not contain an elbow. Why?
If a required component is missing from the piping spec, Plant 3D inserts a placeholder at that point so you can continue drawing. The exclamation mark indicates this; click it to see the cause. Add the missing component (e.g., an elbow) to the piping spec and update the project; the placeholders can then be replaced. Whether placeholders are visible is controlled via the visibility settings.
How do I create a new Plant 3D project based on our company template project?
1. In the Project Manager, choose "New Project" and specify the name and location. 2. Enable the option "Copy settings from existing project" and select the Project.xml file of the template project. 3. Check the following pages (paths for P&ID and 3D drawings, symbol standard, database) and confirm with Next. 4. At the end, check the box to open Project Setup: if Project Setup opens without an error message, the project was created correctly. Note: a copied project does not automatically inherit later improvements to the template.
Which isometric settings are particularly useful in practice?
In Project Setup under Isometric DWG Settings: switch off automatic split points and set split points yourself – this keeps unchanged sections identical in a revision. Enable weld numbering (including field welds). Output slope in mm/m instead of percent, since on site it is usually measured with a folding rule. Show insulation in isometrics. The "Overwrite existing files" option can be preset directly. Small nominal sizes are displayed in color or with a smaller symbol scale via the theme settings.
How do I check whether my project still contains wrong or old references?
In the Project Manager, right-click the project name and select "Audit Project". Then press F2 to open the text window with the audit log – there you can see errors found, e.g. references to templates or paths of another project. Run the audit again after a correction until no more errors are reported. Drawings that are listed in the project but no longer exist can be removed from the project by right-clicking.
How do I assign line numbers to many pipes afterwards?
Open the Data Manager, expand the pipe lines in the tree structure and select the parent level so that all line segments appear in the table. Use the magnifying glass icon at the start of the row to zoom to the respective line, then enter the number in the column – the tag and, with the appropriate configuration, the layer are adjusted automatically. As a rule, assign numbers from the start, provisional ones if necessary; unnamed lines lead to confusion later.
Why does the bill of materials show only a generic description instead of the order text?
In the table setup, the family designation column is used instead of the size designation. To change this: Project Setup > Isometric DWG Settings > table setup, or for orthos under "Title Block Setup" > Tables. Select the long size description, i.e. the order text. Further columns (e.g. material) can be added. Useful options: list pipes as cut pieces, output length instead of quantity, show bends separately. For orthos, activate the required BOM types (pipe, equipment, nozzles, steel) so that they are available for selection.
When connecting to a vessel nozzle, an error about facing or pressure rating appears – what can I do?
The nozzle must match the line's piping spec in units, pressure rating, facing and nominal size. Select the nozzle and open Edit Nozzle: set it to metric, and select the nominal size and pressure rating to match the piping spec. If the nozzle catalog has no nozzle with the required facing, create a suitable nozzle in the nozzle catalog in the Spec Editor and enter the facing there. If the catalog is in the shared content folder, it is available to all users.
After exchanging a drawing with a colleague, Plant 3D no longer finds the nozzles – why?
Each catalog part has an internal, unique identifier. If you and your colleague have each created the same part yourselves in your local catalogs, these identifiers differ and the part is not found. In this case you have to place the nozzle again. You can avoid the problem permanently by having all users work with identical catalogs via the Shared Content Folder.
How do I represent a hose in Plant 3D?
Use a piping spec with a pipe that is designated as a hose. Draw the route as lines or a polyline (the first piece straight) and convert it into a pipe with Line to Pipe. In the bend settings, specify that bends are treated as pipe and select a large bend radius – this creates a continuous, curved hose. If you want to change the route later, keep the sketch line during the conversion and put it on a separate layer.
Can I recover the centerline of a routed pipe as a 3D line afterwards?
There is no direct command for this. When creating pipe via Line to Pipe, you can answer No to the question whether the line should be deleted – the centerline is then kept. For lines already routed, the only options are retracing via the vertices or the PCF export: it contains the coordinates of the line points; however, bends are represented only by their intersection points.
When creating a new drawing, an error message about the template appears. What is the cause?
Usually the assigned DWT template cannot be reached or is read-only (e.g. missing permissions on the template drive). In Project Setup under "Paths", check the entries for the P&ID and the Plant 3D drawing template and point to an accessible DWT via the three dots. In addition, each folder in the Project Manager can have its own template: right-click the folder > Properties > DWG Template. If the template is corrected only there or only in the paths, the error remains in the other case.
Can I set up the isometrics so that valves are dimensioned end to end?
Yes. Project Setup > Isometric DWG Settings > Set Up Iso Style or dimension settings. In the string dimension section, you can specify for each component type, e.g. for weld or flanged valves, whether dimensions go to the center or end to end. Use "Add" to add missing component types. This is also where you set whether gaskets are dimensioned. The setting applies per iso style – check all styles in use (e.g. for different sheet sizes).
All my pipes end up on layer 0. How do I set up automatic layer assignment?
In the Project Manager, open Project Setup > Plant 3D DWG Settings > Layer and Color Settings. Use "New" to create a setting, e.g. assign layer by line number (tag) and color by layer, and set it as current. For supports, "Same layer as pipe" is recommended. Note: the change can be applied to all open drawings – test it on a copy first. Every line must have a line number for this to work.
How do I customize the title block, layers and lineweights of the isometric?
Project Setup > Isometric DWG Settings > Title Block and Display > "Setup Title Block". The isometric template opens: the green area is the drawing area, the blue one the bill of materials area. The title block must be named "TitleBlock", otherwise it is missing in the preview. In isometrics, fields are used instead of attributes. In the Layer Manager you define colors and lineweights, e.g. that pipes are shown thicker than valves. The template is read in again every time an isometric is generated; orthographic drawings, on the other hand, are not subsequently adapted to a changed template.
How do I have pipes automatically colored or placed on layers by piping spec or fluid?
Open Project Setup > Plant 3D DWG Settings > Layer and Color Settings. Create an assignment via New, e.g. by piping spec or fluid, and assign colors or layers; then set it as current. The rule applies to newly drawn objects and when the underlying property changes. For fluids, a separate, maintained fluid list must exist. If you use layers by fluid, also plan layer filters in the drawing template (DWT), otherwise the layer list quickly becomes confusing.
My changes to the isometric XML file are gone again after a restart. Why?
Plant 3D rewrites the configuration files on exit. Therefore close Plant 3D before you edit XML files in the project folder "Isometric" with a text editor. Save in the editor with Ctrl+S and close the file or the tab in the editor so that the change is really written to disk. Only then restart Plant 3D and regenerate the isometric.
How do I change the isometric symbol of a valve or create my own actuator symbol?
Project Setup > Isometric DWG Settings > Symbols and References > "Edit Isometric Symbols". In the Block Editor, open an existing symbol, save it under a new, unique name with "Save Block As", then modify it. The connection points (Port 1, Port 2 …) and, for valves, CP and Operator must be preserved – their names are evaluated. The assignment of symbol key (SKEY) to block is made in the XML file in the project's "Isometric" folder. Each code may only occur once; the first entry found wins.
AutoCAD (57)
Why does the cursor jump in fixed steps (e.g. 2.5 mm) or not snap to endpoints – and how do I switch this off?
That is grid snap. Check in the status bar which aids are active (blue): F7 only displays the dot grid, F9 (snap mode) actually makes the cursor jump to the grid points, F8 toggles Ortho, F3 object snap. For work on object points, turn snap (F9) off and object snap (F3) on – then endpoint, midpoint and intersection work cleanly again. Set the spacing via right-click on the snap icon > "Snap Settings" (e.g., snap 2.5, grid 5), and the snap points via the arrow next to the Object Snap button. Disable object snaps you don't need (in P&ID, however, "Nearest" and "Perpendicular" are useful). To choose a snap mode for the next click only, use Shift + right-click, e.g., "Center" or "Mid Between 2 Points".
The plot preview remains empty or reports an unusual plot configuration – what can I do?
No valid printer is assigned to the layout. Right-click the layout tab > Page Setup Manager > Modify. Under Printer/plotter, select e.g. "DWG To PDF.pc3", check the paper size and plot area (e.g., Layout) and confirm. The preview will then work. If colors print in black, this is due to the selected plot style table. Recommendation: output to PDF first, check it, and only then print on paper.
The hatch appears solid black – what is the cause?
The spacing of the hatch lines is too small relative to the drawing; the lines are so close together that the area looks filled. Select the hatch and increase the scale (e.g., 5 or 10) in the contextual tab or in the properties; you also set the angle there (e.g., 45°). If "Associative" is active, the hatch adapts automatically when the boundary changes.
My dashed line is displayed like a continuous line – what can I do?
The dash lengths are too small relative to the drawing size. Open Format > Linetype, click "Show details" and increase the global scale factor (e.g., tenfold). This factor applies to all linetypes in the drawing. Alternatively, use the Layer Properties Manager (Linetype column > Load) to load a variant of the linetype with larger dash spacing.
How do I arrange objects in a circle or in a row?
For a circular arrangement: Home > Modify > "Polar Array" (drop-down under "Rectangular Array"), select objects, Enter, specify the center point – most reliably via Shift+right-click > Center. In the contextual tab, set the number of items and the fill angle. For a straight row, the COPY command also offers an Array option after the base point: enter the number, Enter, then specify the distance to the second item.
What is the difference between window and crossing selection?
If you drag the selection from left to right (window, solid frame), only objects that lie completely within the frame are selected. If you drag from right to left (crossing, dashed frame), all objects touched by the frame are also selected. After selecting, check on the command line how many objects were found.
How do I set a fixed scale in a viewport that is retained when zooming?
Click the viewport frame in the layout (outside the viewport, not in the active model space), open the Properties palette and set "Standard scale" to e.g. 1:1. Then set "Display locked" to "Yes". Double-click inside the viewport to edit, double-click outside to exit. To change the view, the lock must first be set back to "No".
Why does a click extend or replace my previous selection – and how do I set this?
This is controlled by the PICKADD system variable, which can also be set via right-click > Options > "Selection" tab (option "Use Shift to add to selection"). The default is PICKADD = 1: every object you click is added to the selection. With PICKADD = 0 or the option enabled, a new click replaces the selection; add further objects while holding Shift. This protects against accidental deletion, the Properties palette shows unique values instead of "*VARIES*", and you can, e.g., check only the gasket or bolt set of a flange connection. When dragging a window: from left to right, only fully enclosed objects are selected; from right to left, all objects touched.
How do I place my model to scale in a layout and lock the view?
Switch to the layout tab and create a viewport (e.g. rectangular) via the Layout tab by dragging two corners. Double-click into the viewport, adjust the view with pan/zoom, then double-click outside it. Select the frame and choose the scale in the status bar or in the Properties window. Set "Display Locked" to Yes there – then the scale and view are retained when you zoom.
How do I bring a finished layout with a drawing frame into another drawing?
Right-click a layout tab at the bottom > "From Template…". In the dialog, select DWT or "Drawing (*.dwg)" as the file type, open the file with the layout you want and select the layout. You can then delete layouts you do not need by right-clicking. Alternatively, layouts can also be dragged into the drawing via the DesignCenter.
How do I rotate a line and keep the original (copy while rotating)?
Start the ROTATE command (short form RO), select the object and confirm with Enter. Specify the base point (e.g. the center via object snap) and then select the "Copy" option on the command line. Only then enter the rotation angle, e.g. 15 or -15. Caution: base both rotations on the original line – if you rotate the already rotated copy by -15° again, you end up back in the starting position.
How do I dimension several dimensions cleanly on one line (continued dimension)?
First create a linear dimension (Annotate > Dimension > Linear). Then choose the "Continue" command (DIMCONTINUE) in the same group, click the base dimension if necessary, and then simply click the further points. All dimensions are then aligned at one height. End the chain with Enter or Esc.
Small blue symbols appear while drawing and objects move together – what is that?
These are geometric constraints that the "Infer Constraints" function in the status bar creates automatically. If you then move an object, connected objects move with it. Turn off the button in the status bar if you do not want this. Select existing constraints (e.g., with a window around the symbols) and delete them with the Del key.
How do I pick a specific snap point such as tangent, center or midpoint without changing the snap settings?
Start the command first (e.g. Line or Move). When AutoCAD asks for a point, hold down the Shift key and right-click in the drawing area. In the context menu, select the snap you want (Tangent, Center, Midpoint, Intersection …). This snap applies only to the next click. For Center, it is enough to briefly move the cursor over the circle or arc.
How do I prevent the viewport frame from being printed?
In the Layer Properties Manager, create a separate layer for viewports, give it e.g. a light gray color and deactivate the printer icon in the "Plot" column. Then put the viewport frame on this layer via the Properties window. The frame remains visible while you work but appears neither in the plot preview nor in the printout.
How do I set up my interface once and save it permanently – even across a change of workspace?
1. Select a workspace (e.g., "Drafting & Annotation" or "3D Modeling") and display the menu bar and palettes as desired. 2. In the status bar, use the icon with the three lines ("Customization") to turn on all status indicators so you can see what is active. 3. Use the gear icon (Workspace Switching) to select "Save Current As…". Tip: keep the original name and append your initials (e.g., "P&ID ISO – XY", "3D Piping – XY") so you can tell later whether it is the 2D or 3D workspace. Without saving, customizations such as the displayed menu bar are lost when you switch workspaces – save and overwrite again after every further change. Workspaces can also be exported, e.g., when changing computers; you change the order of the Quick Access icons via "More Commands…" in the "Customize User Interface" dialog.
Why does the spacing of the gray grid lines not match the snap spacing I set?
The displayed grid adapts automatically when zooming – the visible line spacing says nothing about the snap. What counts are the values in the snap settings (arrow next to the Snap button > Snap Settings). Turn the grid on and off with F7, snap with F9. Tip: first draw a line of known length from 0,0 and zoom to it by double-clicking the mouse wheel – then you are working in a sensible view.
How do I join individual lines into a polyline, and how do I break it up again?
Enter PEDIT (Edit Polyline) and select a line. Confirm the prompt asking whether to convert it to a polyline with Yes. Then choose the "Join" option, click the other lines and finish with Enter. Only segments whose endpoints meet exactly are joined. To break it into individual parts, use the EXPLODE command.
The "Tools" or "Format" menus or the Model/Layout tabs are missing – how do I show them?
Menu bar: in the Quick Access Toolbar (top bar), click the small drop-down arrow and select "Show Menu Bar" – menus such as File, View, Format and Tools are then available again. The workspace selection can also be shown from the same drop-down. Tabs: right-click in the drawing area > Options > "Display" tab > enable "Display Layout and Model tabs"; this is also where you can change the color scheme (light/dark). Then save the workspace so that the setting is retained.
How do I create holes in a solid?
Create the holes as separate solids (e.g., cylinders) in the correct position. Then Home > Solid Editing > "Subtract": first select the base solid, Enter, then select all solids to be subtracted, Enter. Combine parts that belong together into one solid beforehand with "Union". Tip: keep a copy of the subtraction solids aside in case something needs to be corrected later.
Why can't I dimension a diameter or radius?
Radius and diameter dimensions only work on circles and arcs. Select the arc or circle directly – the point you click also determines the position of the dimension line. If a diameter appears instead of a radius, you can switch to the corresponding option on the command line. Lines, hatches or section edges cannot be dimensioned this way; if a hatch lies over the edge, select the line specifically.
How do I get a centerline (dash-dot) for axes into my drawing?
In the Layer Properties Manager, click the "Linetype" column of the centerline layer and then "Load…". For metric drawings, select the file acadiso.lin and, in it, e.g. the linetype "CENTER" or "CENTER2". Load with OK, select the linetype and assign it to the layer. By default only "ByLayer", "ByBlock" and "Continuous" are available; all other linetypes must be loaded first. Alternatively, you can reach the selection via Format > Linetype.
How do I show functions in the status bar, and how can I tell whether they are active?
Click the "Customization" button (three horizontal bars) at the far right of the status bar. A check mark in this list only means that the button is visible in the status bar. Whether the function itself is switched on is shown by the button: highlighted in blue = active. Click it to switch the function on or off. Tip: show as many buttons as possible – then you see immediately when something unwanted is active.
Which printer is suitable for PDF output of a layout?
Right-click the layout tab > "Page Setup Manager" > Modify. "DWG To PDF.pc3" has proven itself as the printer/plotter; external PDF printers are often slower. This is also where you define the paper size (e.g. ISO A4, possibly "Full Bleed" for borderless printing), orientation, plot area and scale.
How do I change the height or radius of a cylinder or cone afterwards?
Click the solid and open the Properties palette (Ctrl+1 or right-click > Properties). For primitives such as cylinder, cone or wedge, values like height, radius, length or width can be edited directly there. Alternatively, you can drag the grips (arrows) on the selected solid and type in a value. After a union or subtraction, these parameters are no longer available.
What is the difference between the TRIM and BREAK commands?
With TRIM, you simply click the parts to be removed up to the next cutting edge. With BREAK, you select an object and specify a defined first and second point; the section in between is removed, even without a cutting edge. For circles and arcs, this works counterclockwise. "Break at Point" splits an object at a point without removing anything.
How do I create a new layer, and why shouldn't I draw on layer 0?
Open the Layer Properties Manager via Home > Layers and click "New Layer". The new layer takes over the settings (color, linetype) of the layer currently selected, which you then adjust. Layer 0 is always present in every drawing and can be neither renamed nor deleted; it is better to draw parts, axes and dimensions on separate layers with meaningful names. Important: set the layer you want as current before drawing – forgetting this is the most common mistake.
How do I join two lines cleanly into a corner – and why does FILLET sometimes cut off the wrong side?
Start FILLET, select "Radius" on the command line and enter 0. Click each of the two lines on the side that is to be kept – not on the protruding ends. AutoCAD extends or trims both exactly to the intersection; if you click on the wrong side, you keep the wrong piece. For real fillets, enter the radius you want, e.g. 5. The value remains stored for further fillets – so check it before each use. Press Space or Enter to repeat the last command used.
Why are my dimensions tiny or wrongly aligned?
Usually a dimension style without suitable settings is active (e.g. "Standard" instead of ISO). Check the font under Format > Text Style, and under Format > Dimension Style > Modify check the arrow and text size, the text alignment and, under "Primary Units", the precision. The least effort is to work from the start with a suitable template (DWT) in which the dimension and text styles are already set up correctly.
How do I bring over layers, blocks or layouts from another drawing without creating them again?
Use the DesignCenter (Ctrl+2 or Tools > Palettes > DesignCenter). There, select the source drawing under "Open Drawings" or via "Folders", open e.g. the "Layers" entry and drag the entries you want into the drawing area of the current drawing. Blocks, dimension styles, text styles and layouts can be brought over in the same way.
I can no longer see my drawn objects, or everything is tiny – how do I find them again?
Double-clicking the mouse wheel zooms to all objects in the drawing. If everything looks tiny, there are usually individual objects far away: Ctrl+A shows you everywhere something is selected; delete anything drawn far away by mistake. Hold down the mouse wheel to pan the view. The coordinate display in the status bar shows where the crosshairs currently are.
Why shouldn't I simply move objects by drag and drop?
When dragging with the mouse, the object is placed where you release it – this is imprecise, and later dimensions or snap points will be off. Use MOVE or COPY (CO) instead: select the object, press Enter, snap the base point with object snap, then snap the target point or indicate a direction with F8 (Ortho) and type the distance. Ctrl+C/Ctrl+V is also unsuitable for exact positioning.
My drawing is rotated or no longer at 0,0 – how do I get back to the standard view?
In the ViewCube (top right in the drawing area), click "Top" to get back to the 2D plan view. Below it, set the coordinate system in the drop-down back to "WCS" (World Coordinate System), or alternatively use the UCS command with the "World" option. Double-clicking the middle mouse button zooms to the extents so that all objects become visible. If objects are far from the origin, move them precisely with MOVE using coordinate input.
The "ISO-25" dimension style is missing from my drawing – how do I get it?
Additionally open a new drawing based on an ISO template (e.g. acadiso.dwt). In the DesignCenter (Ctrl+2), select this drawing under "Open Drawings" > "Dimstyles" and drag "ISO-25" into your drawing. Then set it to "Current" under Format > Dimension Style. Note: an existing style with the same name is not overwritten. Switch existing dimensions to the new style via the Properties palette.
How do I fill the title block automatically with title, author, etc.?
Many title blocks use fields that refer to the drawing properties. Open File > Drawing Properties and enter title, subject, author, keywords and comments there. To see which field shows which value, double-click the field in the Block Editor. Fields are updated, among other occasions, when saving or regenerating (REGEN). Advantage: these values can also be searched for in Windows Explorer.
How do I load a LISP routine (.lsp) in AutoCAD so that it is available every time it starts?
Save the .lsp file in a fixed folder. Run the APPLOAD command (Load Application), select the file and click "Load" – it is then available for the current session. To load it permanently, add it in the same dialog via "Startup Suite > Contents…". Routines that modify coordinates (e.g. setting Z values to 0) usually work in the current UCS – set the UCS to "World" beforehand and check the drawing before saving.
Error message "Valid hatch boundary not found" when hatching a view – why?
Hatches are created in the XY plane of the current UCS. If the contour lies in a different plane (e.g. the front view of a 3D model), AutoCAD cannot find a boundary. Align the UCS with the view (UCS command, "View" option, or "Coordinates" group > "View"; if necessary, set the UCS origin on the contour) and hatch again. Also check whether the contour is really closed.
Why can't my contour be extruded, or why is only a surface created?
The boundary must be a closed polyline (or region). Use PEDIT to select a line, confirm the prompt "Convert to polyline" with Enter, choose the "Join" option, select all adjacent segments and press Enter; if necessary, also "Close". If a gap remains (e.g., an incorrectly filleted corner), not everything is joined – clean up the corner with FILLET radius 0. Then run EXTRUDE and check in the Properties palette whether a 3D solid was created.
How do I create 2D views with visible and hidden edges from a 3D solid?
Option 1: create a viewport in the layout, double-click into it, set the view via the ViewCube (WCS), then run the SOLPROF command, select the solid and answer the prompts (hidden profile lines on separate layer, project onto plane, delete tangential edges) with Yes. This creates layers PV-… (visible) and PH-… (hidden); then switch off the solid's layer (and the PH layer if required). Option 2: Layout tab > Base > "From Model Space" creates base and section views automatically.
How do I make frames in model space and in the layout match exactly?
Copy the frame geometry in the layout with Ctrl+Shift+C and base point 0,0 and paste it in model space with Ctrl+V at 0,0. Then select the viewport in the layout, set the scale to 1:1 in the properties and set "Display Locked" to Yes. This way, model and layout match to the millimeter, and annotation blocks at the frame edge (e.g. an equipment strip along the bottom edge) lie exactly within the plot frame. This setup is done once in the template.
Fillet edge or chamfer edge does not select the edge I want – what helps?
Start "Fillet Edge" or "Chamfer Edge" and set the values before selecting the edge ("Radius" or "Distance" option; enter both distances). For edges that run all the way around, use the "Loop" or "Chain" option and cycle with "Next" to the right edge, then "Accept". Finally, press Enter several times to apply the fillet. Filleting across several solids only works after a union. If there are display problems, REGEN and the "Conceptual" visual style help.
How do I change all elements of an array at once afterwards?
An array is associative. Select it and choose "Edit Source" in the contextual tab (also available via right-click), then click an element. Change this element, e.g., the length of a line, and then click "Save Changes". The change is automatically applied to all elements of the array.
My dimension texts are tiny or look different than expected. How do I set up a suitable dimension style?
Open Format > Dimension Style (or the arrow at the bottom right of the Annotate > Dimensions panel) and create your own style with "New…". Check the arrow size, text height and text style (e.g. an ISO font), the decimal separator "Comma" and the suppression of trailing zeros. Click "Set Current" for the style. Change existing dimensions via the Properties palette in the "Dim style" field. Differences between two workstations are almost always due to differing style settings.
What is the difference between text, attribute and field in a title block?
Normal text is fixed in the block. Attributes (Insert > Define Attributes) are placeholders whose value you fill in per drawing by double-clicking after inserting the block; they can also be invisible and read out as a list via data extraction. Fields read values automatically, e.g. from the drawing properties or the file name.
How do I transfer additional toolbars from a CUIX file I was sent?
Enter _CUI on the command line or choose Tools > Customize > Interface. At the top, switch to the Transfer tab. On the right, open the CUIX file using the "Open customization file" icon. Under Toolbars, select the entries you want (Ctrl for multiple) and drag and drop them onto the Toolbars node on the left. Confirm with Apply and OK. The toolbars appear on the main screen and can be docked to the edge. Then save your workspace.
My block has an awkward insertion point – how do I correct it afterwards?
Open the block via right-click > Block Editor. The origin 0,0 in the Block Editor is the insertion point. Select all objects, start MOVE, snap to the point you want (e.g. Shift + right-click > "Mid Between 2 Points") and enter 0,0 on the command line at the bottom. Then "Close Block Editor" and save the changes. Better: when creating the block, specify the base point right away via "Pick point".
How do I snap to the midpoint between two points or the centroid of a contour?
While a command is asking for a point: Shift+right-click > "Mid Between 2 Points", then click the two points. For the centroid there is the "Geometric Center" snap. It only works on closed polylines or continuous contours – join individual lines beforehand with PEDIT > Join.
How do I rotate a line so that it points to a specific point and keep the original?
Start the ROTATE command, select the object, specify the base point. In the command line, first choose the "Copy" option (so the original is kept) and then "Reference". Now indicate the reference angle with two points on the object (e.g., midpoint and endpoint) and then snap to the target point (e.g., the center of a circle). Work in the WCS or the appropriate UCS, otherwise an invalid angle is reported.
How do I place an object at exactly the height (Y value) of another point?
Use point filters: when prompted for a point, enter .Y (period on the keyboard, then Y) and click the point whose Y value is to be used. AutoCAD then asks for the remaining coordinates (X/Z); click another point for this or enter @ for the last point. .X and .XY work the same way.
How do I change all texts or dimensions of a drawing at once?
Open the Properties palette (Ctrl+1) and click "Quick Select" at the top right. Select "Entire drawing", as the object type e.g. "MText", "Text", "Rotated Dimension" or "Radial Dimension", operator "Select All" and confirm with OK. You can then change e.g. the text height or the dimension style for all selected objects at once in the Properties palette.
Subtract with a polar array does not work – why?
An array is a compound object, not a solid. Explode it first: select the array and run the EXPLODE command. The elements are then individual 3D solids and can be subtracted from the base solid with "Subtract".
How do I transfer walls from a point cloud into an Inventor model?
We recommend recreating the building envelope as wall objects on the cropped point cloud using AutoCAD Architecture (or Revit). Adjust the baseline, width and height of the walls in the properties and place doors and windows at the detected locations. For Inventor, export the result as solids, e.g., SAT or IGES; IFC is also possible. The building envelope then serves as a reference in Inventor.
How do I get drawing frames and plot-ready layouts into my template?
Open the DWT and the DesignCenter (Ctrl+2). From there, bring over layouts, blocks and layers from existing drawings by drag & drop. Alternatively, create a new layout, insert the frame block at 0,0 and set the following in the Page Setup Manager: printer "DWG To PDF", suitable paper size, plot area "Window" via the frame corners – this is more reliable than "Extents". Create oversize formats as a custom paper size in the plotter properties. Layers created in the template are taken over by Plant 3D with their properties.
How do I create a floor plan with wall outlines from a point cloud in AutoCAD?
Attach the point cloud via Insert > Point Cloud. In the Point Cloud Manager, you can show and hide regions defined in ReCap. Then crop the point cloud, e.g., to a narrow horizontal section at a height where there are few pipes and machines. Using the function for generating section lines, AutoCAD derives lines from it on which you can construct walls. Edges, corners and centerlines can also be extracted from the point cloud.
Why does my point or line end up in a completely different place than expected (relative or absolute)?
This depends on dynamic input (status bar). If it is active, subsequent points are interpreted relative to the last point – as if preceded by an @. If it is off, e.g., 100,0 in the command line is an absolute coordinate in the current UCS, relative to the origin 0,0; you then force relative input with a leading @ (e.g., @100,0; on a German keyboard AltGr+Q). The first point of a command is always entered as absolute. With dynamic input active, use the Tab key to switch between length and angle; it works in the pointing direction – a negative value draws opposite to the displayed direction.
How do I draw to the intersection of two lines that do not even touch?
Use the "Apparent Intersection" object snap: during a command (e.g. LINE), hold down the Shift key, right-click and select "Apparent Intersection" in the object snap menu. Then click the two lines one after the other – AutoCAD calculates the point at which they would intersect if extended. Important: press the Shift key and the right mouse button at the same time.
How do I specify which template (DWT) a new drawing starts with?
In Options, on the "Files" tab, expand "Template Settings" and assign the template you want (e.g. acadiso.dwt) under "Default Template File Name for QNEW". For companies, a shared profile with uniform paths to templates, plot settings, etc. is recommended so that all workstations behave the same way.
Navisworks, ReCap & Inventor (26)
What is the difference between saving and publishing an NWD file?
Saving writes the file, which stays open in Navisworks. Publishing creates an NWD file that is not opened afterwards but is ready for sharing; you can also set additional options. For sharing with external parties, publishing is recommended; simple saving is more for internal use.
After the import I see hardly any points – what could be the reason?
The most common cause is an incorrectly detected input unit. In the import settings, check under Advanced whether meters or millimeters is set. If millimeters is set, a range filter of 40, for example, is interpreted as 40 mm instead of 40 m and almost all points are filtered out. Correct the unit, confirm changed values with the Enter key and import the scans again in a new project.
Where should I save a new ReCap project, and what should I watch out for with the project name?
Create the project folder yourself in Explorer beforehand – unlike Plant 3D, ReCap does not create its own project folder. Under New > Project from file import, enter a name and then select this folder. Work on a local SSD drive if possible; network drives are much slower, and you should avoid folders synchronized with cloud storage. Avoid umlauts and special characters in names to prevent problems during import and sharing.
How do I add more scans to a project that has already been registered?
Open the project and select Import. You return to the import page and can add the additional scan folders by drag and drop. Check the import settings (unit, filters) and start the import. Then select Continue Registration so that the new scans are matched to the existing ones, and complete the process with indexing.
Can I set the third person to be shown by default when navigating?
Yes. Open Options and select the viewpoint defaults under Interface. In the collision settings, you can have Third Person activated automatically and also select the figure (avatar) there. The setting then applies to newly created viewpoints.
I imported only the scan file and the result is unusable – what went wrong?
With many terrestrial scanners (e.g. .fls format), each scan comes with a folder containing additional structure and the image information. So import the complete scan folders, not just the individual file. The most reliable way is to drag and drop the folders from Explorer onto the target area in the import window. ReCap converts the data into its own RCS format during import.
How do I check whether my computer is suitable for point cloud processing in ReCap?
Under Settings > System, at the very bottom, you will find the Info section with details on the graphics card, memory and processor. For import, registration and indexing, a powerful multi-core processor and plenty of memory are important. Because a large amount of data is written, the project should be on a local SSD. For mesh models, a higher number of usable processor cores speeds up the calculation considerably.
When walking, the avatar is red and I cannot move on – what can I do?
Under Walk, enable the Collision, Gravity and Third Person options. If the avatar is shown in red, it is stuck, e.g., in the floor or in an object. Move the view up slightly, and you can then continue walking normally. When walking, you move with the left mouse button; the middle mouse button pans the view.
Can I open the project while ReCap is still indexing?
We advise against it. Only indexing completes the registration – until then, the data is held only in a temporary cache. If you choose Launch Project before indexing reaches 100%, ReCap may hang or crash. So wait until the progress bar is complete and all RCS files have been written to the project's support folder.
Which values should I choose for decimation and filters during import?
Decimation thins out the point cloud to a minimum spacing: the larger the value, the faster but also the more incomplete the result. For small piping, a few millimeters (about 1–2 mm, no more than 5 mm) make sense; alternatively, turn decimation off completely. The noise filter (e.g., aggressive) removes interference such as people walking past. Use the range filter to limit the range, e.g., for indoor spaces to the area actually needed.
How do I create a surface model (mesh) from a point cloud for use in other programs?
Save the project and start mesh creation. In the following dialog, select the scanner type used, a high quality setting (needed for piping so that round geometry is preserved) and the number of processor cores. The calculation is very compute-intensive and can take hours. You export the finished mesh, e.g. as an FBX file; it is usually much smaller than the point cloud and can be reused in Navisworks or Inventor.
Why do clashes that were already resolved reappear after re-running the test?
When you use the Compact command, clashes with the status Resolved, Approved or Reviewed are removed from the list. The next time the test is updated, Navisworks detects these locations as clashes again. Therefore, set deliberately accepted clashes to Approved and leave them in the list instead of compacting. After changes to the model, updating shows which clashes have been resolved and which are new.
How do I reduce a large scan project to a few scans without damaging the original?
Save the registered and aligned project to a new folder with Save As. In this copy, delete the scans and regions you do not need, including their content. The old RCS files are then still in the support folder, however – only another Save As of the cleaned-up copy really reduces the data. Then delete the intermediate versions. Do not delete anything in the master project; only hide it.
The clash test returns hundreds of irrelevant hits – how do I reduce them?
Use the test rules: for example, ignore items on the same layer, in the same group/block, in the same file or with coincident snap points. Also create search sets and test trade against trade in a targeted way; remove insulation or supports from the group as needed. Very small penetrations in the millimeter range can be sorted and set to Approved all at once. A good folder structure and consistent layer naming make this much easier.
How do I create and distribute a clash detection report?
In Clash Detective, switch to the Report tab, select the statuses you want (e.g. only New and Active) and the format. The HTML report or HTML (Tabular) is the most readable; XML is better suited for further processing. With the Viewpoints format, the clashes are saved as viewpoints including comments and can be shared with an NWD file. You can assign clashes to a person with a comment using Assign.
How can I tell whether the registration of my scans is good enough?
After registration, ReCap shows a registration report with the scans and their overlap. Connections marked green are fine; with overlaps of more than about 50% you usually get good results, lower values are marked yellow or red. Also check visually, e.g. from above, whether walls and edges lie exactly on top of each other.
How do I export only part of the point cloud as a separate file?
Define the desired region, e.g., via limit box and selection, and hide all other regions – only visible regions are exported. Then choose Export, set the point spacing (dense, e.g., 1 mm) and save the file. The result is a pure RCS point cloud without scan positions that loads much faster. Since the origin is preserved, all exported regions are correctly positioned relative to each other in other programs.
How do I combine, for example, all insulation into one group for clash detection?
Open Find Items and define a condition, e.g. Item > Name contains the term you want. Find All selects the objects. Then save the search as a search set in the Sets window. Search sets are updated automatically when the model changes and are available in Clash Detective as Selection A or B. For a better overview, you can also assign transparency to the objects.
How do I divide a large point cloud into regions, e.g. rooms or levels?
Use the selection tools (window, fence, plane) to select points and define a new region from them. With the plane tool, ReCap detects surfaces such as walls; select points that are as far apart as possible for this. Points that do not belong can be deselected and removed. In the project navigator (bottom right) you can see all regions and scan positions, group scans by dragging and show or hide regions.
Navisworks becomes very slow with the point cloud – how can I make it run more smoothly?
The point cloud should only be referenced in the NWD file; if it is embedded, the file grows enormously. Load the complete RCP project only once so that the views of the scan positions are adopted, and then remove it again. Instead, load the regions exported in ReCap (RCS files): one larger RCS file is displayed much more efficiently than many individual scans. Hide parts you don't need via right-click > Hide.
How do I design in Inventor based on a point cloud?
Attach the point cloud in a part (IPT) via the Manage tab. Use the browser to access the regions defined in ReCap, and crop the region with a box. In the Point from Point Cloud flyout, you will also find Plane from Point Cloud; use it to create work planes and axes. Project these into a sketch (Project Geometry) and extrude them. For extensive remodeling, AutoCAD with STEP export to Inventor is often faster.
How do I set up a meaningful clash test in Clash Detective?
In Clash Detective, add a test and select Selection A and Selection B – e.g., drawing against drawing or search set against search set. As the type, choose e.g. Hard; use Clearance with a tolerance, e.g., 50 mm, to check installation or insulation clearances. Do not enable Self-Intersect for piping models, since adjoining components produce hundreds of unnecessary hits. Confirm entries with the Enter key and run the test.
How do I show only the important properties of an object when I click it?
In Options under Interface > Quick Properties > Definitions, you specify which categories and properties appear as quick properties, e.g. line number, piping spec or material. When you hover over an object, exactly these values are then displayed. The properties themselves come from the source application – for Plant 3D, e.g., from Project Setup – and cannot be shortened in Navisworks.
How do I align the point cloud with the plan and define my own origin?
First disable perspective in the display settings. Then enable the origin there and select Update Origin. Click the desired origin, e.g., a building corner, and then align the X-axis with a wall surface (toggle between surface and axis alignment with the Ctrl or Alt key). The Z direction results from gravity and should not be changed; you can set the Z height, e.g., to the floor. Check the result in plan view.
Some scans were not registered automatically – how do I assign them manually?
Select the unregistered scan and a neighboring scan for manual registration. In both views, place the same point on three surfaces with different orientations, e.g. two opposite walls and one perpendicular to them. Avoid glass, curved objects such as vessels and moving parts such as doors. Use the intensity display to check whether someone walked through at that spot. Then merge the scans, accept the result and index.
Can I align the origin with a grid coordinate from my floor plan?
Yes. Select Update Origin again, snap to the reference point in the point cloud and enter the X, Y and Z coordinates that this point has in your plan. The point cloud is then moved so that it is correctly positioned relative to the floor plan. If possible, define the origin once in the master project and do not change it afterwards – otherwise derived projects and exports will no longer match.
Advance Steel (6)
How do I get the classic AutoCAD toolbars (e.g. UCS, Object Snap) back in Advance Steel?
Use the CUI command to open the Customize User Interface dialog. Select your workspace and click Customize Workspace. On the left under Toolbars, activate the entries you want, e.g. UCS, UCS II, Object Snap and View, and apply the change. Then drag the floating toolbars to the edge of the drawing area, where they dock.
Why does the search not find my parts by role even though I entered the property?
Changes in the properties dialog are only applied when you close the dialog. Clicking Save alone does not close it; only after closing do the objects appear in search queries. Assign the roles systematically for all part types (columns, beams, bracings, plates, bolts) – they control numbering, drawing generation and connections. When clicking, make sure you hit the part itself and not, for example, a line or a hole.
How do I join two bent plates into a folded plate?
Use the function for joining plates on the objects. It works most reliably when both plates end at an aligned edge but do not meet exactly: first construct the plates up to the edge and then pull each of them back by 1–2 mm. Then select both plates and specify the bend radius. For complicated geometries, it can be easier to create a polygon plate via the corner points of auxiliary plates.
How do I assign mark numbers with my own prefix in Advance Steel?
Always run a model check before numbering. In the object properties, on the Naming tab, assign a role and the prefix for the single part or main part number. Delete existing numbers before renumbering – separately for single parts and main parts. Then start the numbering; prefixes can also be assigned centrally via the prefix settings. Identical part detection only works for truly identical parts.
Why does transferring connections to other locations not work?
Transferring or copying connections requires a geometrically identical situation – the same sections, angles and distances, as occur, e.g., in structures on a grid. If angles deviate even slightly, the transfer fails. In such cases, it is faster to recreate each connection with the Connection Assistant or connection tool. Then check the generated bolts for correct edge distances.
How do I get controlled views instead of automatically generated sections in Advance Steel?
Work with cameras: first align a UCS with the desired view plane and save it under a name in the UCS Manager. Then create a camera and define the view direction, section depth (detail box front/back) and the objects to display, e.g., via a search query. When deriving via drawing styles, you get exactly this view. The processes, by contrast, generate views according to their own logic.
The questions come from our training courses and support sessions – anonymized, without customer or project data. Menu paths refer to current German program versions and may differ by version; the answers do not replace checking in your own project.

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