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CAD tip CAD tip # 7536:

Question CAD 
 %  platform  category 
Q - question

How to convert a STL file back to AutoCAD or Inventor?

A - answer Neither AutoCAD, nor Inventor and Revit can import STL files (stereolithography). They can only export STL files as a part of their "3D printing" functionality.

If you want to use (re-import) an existing .STL file for viewing, measuring or reconstructing of 3D geometry, you can use the free online service STL2DWG running on the CADforum.cz server. This brings an additional alternative to the Inventor internal file converters.

Just upload your textual or binary STL file and this web application generates and return a SCR (script) file for AutoCAD (to save to DWG), or a DXF file compatible with virtually any CAD application.

To load the resulting DXF file into AutoCAD, you can just use Open after you click on the web page link. To load the 3D DXF file into Inventor, use the import wizard (Open) and check its options "3D solids", "Use default file names" and "New part, Wires to 3D sketch". In Revit, load the DXF file with the ribbon function Insert > Import > Import CAD.

Since Inventor 2013 you can use direct STL import (Open).

You can also use the STLin add-on utility for AutoCAD - see www.cadstudio.cz/download, or Autodesk ReMake (with FBX export).

ACADInventorRevitCivil3dsmaxDWGReMake
100% *  CAD 
2.9.2010    60995×  
applies to: AutoCAD · Inventor · Revit · Civil 3D · 3ds Max · DWG · ReMake ·

See also:
Tip 12749:Generate parametric mathematical 3D surfaces (meshes) in Fusion 360.
Tip 12710:Boolean subtraction of 3D mesh objects in Meshmixer.
Tip 12588:Which CAD formats can be be translated in Fusion 360 even without the cloud, offline?
Tip 12233:How to compare two 3D mesh models and find differences/changes?
Tip 12029:How to print 3D characters designed in Autodesk Character Generator?


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