View Full Version : What is the best way to import Large AutoCad Files to Lightwave?

Shawn Farrell
02-07-2013, 01:37 PM
I have some extremly large AutoCad files what is the best format and process from AutoCad to get these into LightWave? THANK YOU! - Shawn

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02-07-2013, 01:56 PM
Shawn are the acad files 2D or 3D? I've had good success using SketchUp Pro as a go between the two programs belive it or not.

02-07-2013, 02:07 PM
Assuming they are 3D, export as STL (stereo lithography) and use Sean Hyde-Moyer's free STL import plugin. If AutoCAD supports FBX, then that's even better as no plugin required.

02-07-2013, 02:27 PM
If it's a 2d floorplan.. It's a bad idea getting a complex autocad drawing into any 3d app, you should try to simplify it in a CAD program, or even in ilustrator before you send it to LW. I get floor plans often and they are usually in DWG, LW can't read those so they have to be converted to DXF or AI. You can export them as DXF from Autocad, if you don't have access to it you can convert them using a free app called Teigha File Converter. I recently got a DWG that was exported in version that was too new for Teigha, and had to use another free app "DWG True view" to export it as an older version. Once in DXF, LWCAD does a better job than straight LW in importing them.

02-07-2013, 03:57 PM
Have the files "plotted to PDF" from withing the CAD package then bring the PDF into Illustrator and save out as an EPS file - Load EPS file ( version 9 I think works well ).
Once the line work is in LWM scale to meet yours needs. I make sure I know the length of one of the lines or distance between two points then I use "Set Scale". So CAD to "plot to PDF" opoen in Illustrator save our as an Illustrator EPSv9 and import to LW modler, set scale and you are off and runing. 2D only with this option.

02-07-2013, 04:22 PM
can open any dwg or dxf file embedded into an autocad file.
From there, the way i did it was to reconstruct everything with LWCAD, using the dimensions, measurements tools and annotations available in autocadws.
It is possible to start from the dxf, but there is a lot of cleaning to do. I prefered to generate a clean geometry with LWCAD. Like the wall preset tool in LWCAD, if you know the height and widht, it's a a matter of second to generate it. But that was for a small project set up.