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Software und Anwendung für AutoCAD Plant 3D · Autodesk Authorized Training Center · Frankfurt am Main Deutsch · Español · +49 69 9450725-0 · vertrieb@seitz-ingenieure.de

Industries

Planning in existing plants (brownfield) with AutoCAD Plant 3D

The plant is running, the documents are old, the modification has to fit the first time. We capture the existing plant by laser scan, recognize the pipes with EdgeWise and continue planning in AutoCAD Plant 3D directly on the existing plant.

With us you will find solutions for your tasks.

Typical plants

  • Modification, extension or replacement of equipment during operation
  • Plant rooms with many lines in a confined space
  • Plants without up-to-date drawings or without a 3D model
  • As-built documentation after the conversion

Typical planning tasks

  1. Scanning on siteFrom many positions; the plant keeps running in the meantime.
  2. Register and alignJoin the scans in ReCap into one point cloud and set the plant origin point once.
  3. Recognize pipesEdgeWise recognizes pipes and steel sections in the point cloud and passes them to AutoCAD Plant 3D.
  4. Continue planning and checkPlan new lines by piping spec against the existing plant, check clashes in Navisworks, output isometrics and orthos.

From our projects

What we have implemented in this industry so far – counted, not estimated.

From our projectsNumber
Projects57 (2021–2026)
Isometrics111
Orthos (2D drawings from the model)160
registered laser scans2,009
pipes recognized with EdgeWise940
Projects with setup or introduction of AutoCAD Plant 3D8
Projects with 3D piping design38
Projects with laser scanning57

Anonymized from our project records, as of 08.10.2026: industry, period and counted scope – without customer names. Quantities are counted files in the project folders.

Example From scan to Plant 3D model with isometrics

Existing plant rebuilt digitally: 24 scans, 55 recognized lines, 71 isometrics and 14 orthos – from the survey to delivery as PDF.

Questions from practice in training and support

All questions: Practice questions in the Infobase.

Your next step

Frequently asked questions

What does brownfield mean?

Brownfield means planning in an existing plant – as opposed to greenfield, a plant on an undeveloped site. In an existing plant, the lines, steel structure and space already there determine what is possible.

Do I need a laser scan for every modification?

Not always. For a single line a manual survey is often enough. In cramped areas, with missing documents or many disciplines, the scan supplies reliable dimensions for everyone.

Can I get the point cloud without a model?

Yes. You receive the registered point cloud and can plan on it yourself. On request we model the existing plant in AutoCAD Plant 3D.

Terms, background and sources 1 term on this page

Brief explanations for reference. They do not replace the standard or code itself.

R&I – Piping and instrumentation diagram

Flow diagram showing all pipes, valves, equipment and instrumentation of a plant (P&ID, Piping and Instrumentation Diagram).

Symbols and drawing rules: DIN EN ISO 10628-1 and -2. Identification letters for instrumentation: DIN EN 62424 or ISA-5.1.

Sources and origins