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I can download a file from Tinkercad as any of these:

.STL
.OBJ
.X3D
.VRML

Is there a way to convert any of those file types to .DWG?

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2 Answers 2

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I found this site and tested it a moment ago. I uploaded a simple .STL file (crystal) and had to register as a user (free, unremarkable) in order to perform the conversion.

http://www.cadforum.cz/catalog_en/stl2dwg.asp

The downloaded file was in .DWG format and opened without a problem in AutoCAD 2013 as a 3d object.

Note the placement of the pivot point in Meshmixer (first image) and the corresponding location in AutoCAD.

enter image description here

enter image description here

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  • $\begingroup$ I managed to download the file as a .DXF. Will that open in AutoCAD? $\endgroup$
    – tdrsam
    Apr 8, 2016 at 0:30
  • $\begingroup$ It should, as well as open in many other CAD type programs. DXF means drawing exchange format. $\endgroup$
    – fred_dot_u
    Apr 8, 2016 at 14:00
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There are solutions with instant delivery/conversion, and others that take some hours to send you the file. I found solutions varying from free online conversion to pricey service. You may need to do some touch up on the files converted from automated platform before you send it to a CNC or other CAD/CAM machine. You can check on these platforms: http://cadmesh.com https://www.convertcadfiles.com/

Have in mind that, the higher is the model complexity (shape) the harder is to convert the model. If trying to convert a 3D scanned model, make sure to have a closed mesh and a high-density mesh definition. Good luck!

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