Hi,

I'm a newbie, so be gentle. I'm trying to create a container with a lip and a draft. I made an extruded boss for the main body with a 1 degree draft and shelled it out to a 2mm wall thickness with an open top. Now I'm trying to add the lip (see attached photo) which I did by creating a new extruded boss from another plane parallel to the top plane with a 2mm thickness. How can I use the initial boss to trim the second one? Or some kind of union/intersect/combine?

I wanted to try the combine feature, but the combine button is unclickable.

Thoughts?