I have an extruded part where one edge has a complex profile. I want to create a mating part to the profile edge (let's call the existing profile the male and I want to create the matching female profile). I've tried to use the existing part to do an extrude cut into the new part, but I can't get this to work. -Is it possible to use the profile edge to extrude cut into a new part, to get a matching (mating) profile? -If so, how does one do this? -If not, is there a way to get a matching (mating) profile on an new part? (Obviously I could redraw the same profile, but it's complex and I'm hoping to make use of the geometry already created). BTW I'm learning SW and I've asked other questions in this group, and gotten good responses. I appreciate those who take the time to help out!