My team uses Onshape for all of our CAD. We have been very happy so far with the product but this past weekend something happened. Everything we export as a dxf (or similar file) inverts every fillet. EVERY ONE. We’ve tried everything, mulitple computers, browsers, files, exporting as step and re-importing. Everything still gets inverted in the final product. Is anyone else experiencing these issues or have a workaround that might work?
Where is your final product going? Is it possible that software is reading the DXF incorrectly? We have exported one DXF file for our shooter hood, which has bent polycarb, into Fusion 360 with no issues.
We also had this issue recently. What I ended up doing is exporting my splines as polylines, and then it worked fine. Maybe this will work for you too.
Another work around (depending on exactly what you are doing) would be to export the part as a step file, and then make a print using a different CAD software, like Solidworks or Inventor, if you have one of those installed.