You got it. I have realized I don't need a lid. This is what I was trying to do. i have decided to change my design. Making a lid for a shelled part would probably require some experience to makei it fit right. I really appreciate your help.
I have done that. I want the top to sit on a rectangular part that has been hollowed out.. I think I maybe have to make two parts and joined them together.
I don't want to just taper the edge. I want to cut out around the edge. Like I am running a mill cutter around the edge so the part fits onto a part that I have hollowed out.
I want to put a cut arround an edge of a piece to fit it on the bottom part. I thought I saw trace command but I can't find it. This is like putting a lid on a jar.
I have looked through the entire course. It is great, the instructor is great. Thanks so much for your help. This course should be part of the oopening screen on Alibre.