Hello and thanks in advance.

I've been tasked with creating a model and adding "air" (shown in blue) to an assembly. When I create the cavity and subtract the parts from the "air " I get Zero thickness geometry.

The assembled parts touch on the selected edges. They're conical in shape with small angle differences that only touch about the circled edge. (Different colors below are different parts in the assembly)

Any Ideas on how to get around the Zero thickness geometry.

1. I've thought about saving the assembly as part file and subtracting... still getting zero thickness.

2. I thinking about Intersecting the parts and then combining them back together...

Let me know if you need any more info from me. Thanks again!

Message was edited by: Galdino Bahena