Export stl from Fusion 360

[Anonymous]

I'm trying to export an stl from Fusion 360, but when I open the 3d model on Cura it appears  with missing pieces. How can I get a good .stl file from my project? Thank you.

[MoshiurRashid]

This file contains a lot of mesh, surface and t spline bodies. Most of them are faulty, I mean, self intersecting.
I guess you 3d scanned it and mesh files are from 3d scanner. Well, if you try again to 3d scan well I can modify the mesh for you in the meshmixer.

But, for this file, there are many open and intersecting faces that requires to be repaired.

[Anonymous]

I downloaded a 3D scan of a face and tried to create a mask on the face, so I can't make any 3D scan. Can you help me create a good stl of only the Form type mask? I would really appreciate it.

[jeff_strater]

You cannot convert a T-Spline body (Form) directly to STL.  You must first convert them to BRep bodies:

When I tried to convert them to BRep, at least one had an error that will have to be corrected to continue:

finally, you have 4 separate T-Spline bodies in this design:

They will have to be combined into a single body to export to STL.  Once you get these 4 converted to solids, use Combine to join them together into a single body.