STL Export Makes Hollow Body

[kevin4582XH7V]

Hey everyone!

I hope you're all doing well. I have a question regarding my recent experience with drawing an electronics enclosure using Inventor and attempting to 3D print it in a half-section view.

Here's the thing: when I export the model to STL, it ends up hollow instead of filled like it appears in the software. The strange part is that when I print it on my Ultimaker, there doesn't seem to be any problem at all (see the second picture).

However, I decided to outsource my printing to SLA, and they informed me that they can't print a hollow body.

I was wondering if anyone has any suggestions or ideas on how I can avoid having a hollow body when printing with SLA? Any help would be greatly appreciated!

[JDMather · Accepted solution]

@kevin4582XH7V 

The original geometry does not look correct in your image.

Can you Attach the actual *.ipt file here?

[kacper.suchomski]

Send them the step file, not the stl.