I have this part this is a currently a molded part. The are going to make a new mold so I need to remove some material from this 3D part. It was a parasolid when I imported it into solidowrks.
I need to remove about 0.025" around the inside of the part for clearance with a circuit board. Highlighted in blue in the image below.
How can I do this? I was thinking I could do an offset surface or something but that did not seem to do anything.