- September 29, 2016 at 4:50 am #18698
I’m trying to make some gears with ma MPCNC. But I can’t make a correct dxf to do that.
Look at the pictures, I often have this problem each time I try to have some ‘curves’ in my sketch. I don’t know if the problem comes from Onshape or Estlcam.
In Onshape, I tried all types of DXF (Release 14, 13, 12, 2000, 2004, etc…).
If I import back the exported DXF in Onshape, I’ve no error.
If I import the same DXF in Freecad, I’ve got something even stranger.
Has someone an idea about the problem I have? Is it Onshape or Estlcam which is the problem?
I searched several hours on internet to find an answer, but it doesn’t seem to be a famous problem.
Any idea is welcome, because I ‘m stuck in the early beginning of a project…
Attachments:September 29, 2016 at 4:58 am #18703
I tried another way to make Gear in Onshape. The result is “artistic”…Pictures below…
Attachments:September 29, 2016 at 5:22 am #18707
I find a way (a real boring way…):
-Rotate the part in Onshape to be in the ‘Top Plane’.
-Export the part in IGES format
-Open the IGES in Freecad
-Export as DXF with Freecad
-Open it in Estlcam, it works now
So, the problem seems to come from Onshape. That’s sad, because I only use that now…
At least I can work again, but if somebody have another easier way, you’re welcome.September 29, 2016 at 2:46 pm #18742
I’ve got a response from Onshape Team:
Today we do not export spline data as splines but as poly lines in the DXF/DWG format. I have added you to the request for this type of support. ~Lou
Your support ticket:
“DXF export issues”
has been marked as an improvement request. Onshape development will evaluate the request and we will notify you if/when this has been implemented. Thank you for helping us make Onshape awesome!
If some people have the same problem, now you know there is a boring way to do it ;=)November 15, 2016 at 8:22 am #21016
Please include me in this issue. I have the same desire and need to export spline data as splines. My primary use of Onshape was to model and work with gears.November 15, 2016 at 9:04 am #21017
You have to do it from your Onshape account (even if it’s a free plan). More people ask for it, faster they will work on it.November 15, 2016 at 9:15 am #21020
can you send me the .dxf file so I can have a look at it?
ChristianNovember 15, 2016 at 9:31 am #21022
I send you a gear, but it’s the same with an half circle: if I draw my half circle clockwise it will work on estlcam, but anti-clowwise it’s not a the good place (or the opposite, I don’t remember). No problem with circles.
Attachments:November 15, 2016 at 1:50 pm #21040
I’ve just opened the file with LibreCAD and it shows the same issue.
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