I need to hollow out a part using what I would assume to be the shell feature. No luck :/

[andrewkeisler]

Just like the subject says, I'm having trouble hollowing out a part with a .1 thick wall. Radius thickness isn't crucial as I am only hollowing the part to save material for 3d printing. I have tried to use the shell feature without selecting any faces and I get errors. Any help on this would be greatly appreciated! Below I have attached the .step file. Thank you!

 

[CorBlimeyLimey]

If you change the view to wireframe & take closer look around, you will find some geometry anomalies, and some funky internal pockets. They are probably causing the Shell to fail.

 

[andrewkeisler]

Okay, thanks for pointing that out, I will try to get those out of the way and try again. Thank you!