I also am an OnShape user. When I export my 3D models I export as an STL as Edwin mentioned. However one important thing is that you need to make your exporting units in millimeters. Otherwise it will think that 1 inch (or whatever unit you use) is 1 mm and your print will be too small.
I saw some activity in this topic last week and wanted to help out some more in case someone else runs into this issue. I made a video a while ago that way you’re able to get a visual example of this and what the solution looks like. I show how I export my models from OnShape into Luban and how to get the part to be the right size. Hopefully this will help clear things up if you encounter this!!
Hey! I got kind of a strange problem. I’ve also been using onshape a lot but the problem that I’m facing is whenever I try to get my files into snapmaker it comes up saying that it has something wrong with the g-code even though I’m doing everything right and using an stl. Do you think you know what’s wrong?