Originally Posted by mdlmkr IMPORTANT--- There is no undo for join. I have gotten burned by this a couple of times. If you are joining many entities make sure that you save often. |
Another technique I use is to copy the surfaces you want to work on to another layer, then you can edit and not worry about it.
I do this often when I want to finish a non-planar surface that has a hole, but I want to keep the cutter from "diving" into the hole. I just copy the surface to its own layer, untrim it, and the hole goes away, then retrim back to the original outside edge wire frame. Layers are your friend!