Hi Alligator, I think that Cut2D is only focused on taking 2D curves for inputs, that's why it doesn't support STL format or other 3D shape formats. It just does not work with 3D forms directly, it only processes 2D paths.

I think you should be able to use AI format for exporting from MoI to Cut2D, and yes it's a 2D curve format but that's just the type of data that it works with.

Also in MoI v3 there is a new DXF format (also for 2D drawing export) that you should also be able to use for transfer as well.

You can get the v3 beta by putting in your v2 license key here: http://moi3d.com/beta.htm

- Michael