DXF export problem

SketchUp Pro
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1

I am working on a standard job for a steel plate with four holes intended for laser cutting. The manufacturer provided feedback stating that their software does not support short elements. They noted that the circles in the drawing appear as multiple short segments rather than a single circle command and have requested that the drawings be updated.

I drew these circles as I normally do, using 48 segments, but it appears the DXF transfer is causing the manufacturer’s software to read them as small, straight lines.

Could you please advise on what can be done in SketchUp to eliminate this problem and ensure the circles are exported correctly

Regards

Les

2

This is a known thing with the 2D DXF/DWG exporter.

Use the 3D DXF exporter instead of the 2D exporter.

3

thanks

I will try , see how we go

4

FWIW, I just made an example.

This is the 2D DXF opened in FreeCAD. Endpoints are shown.

Screenshot - 4162026 , 73356 AM
Screenshot - 4162026 , 73356 AM1244×1155 10.6 KB

And this is the 3D DXF export also in FreeCAD.

Screenshot - 4162026 , 73419 AM
Screenshot - 4162026 , 73419 AM1264×1191 20.1 KB

You can send them this file and have them check it to see if they see the same thing.
3D Export.dxf (194.7 KB)

5

Search the forum for details about exporting true circles.

Broad strokes: use a single face, not 3d geometry. Set the camera to parallel projection and plan view to see what you’re exporting. Export that via 3d export DXF. Turn off faces in the export dialogue, export only edges.

6

Hi DaveR,

I sent your “3D Export.dxf” file to the laser cutting contractor, but unfortunately, the results were not successful. I also tried creating and sending a 3D DXF export directly from SketchUp myself, but that did not work either.

I am not quite sure how to proceed at this point. Do you have any other suggestions on what I should try next?