Exporting 3D models can be a time consuming process, even for experienced CAD designers. That's why we've created a simple document that explains how to export 3D models from Tinkercad, Onshape, and Inventor.
We'll be adding more soon!
Here's the document: Exporting models for 3D printing
Good luck and if you need any help, don't hesitate to contact us at https://www.nwa3d.com/support/request-support/!