I’m new to Rhino but have really enjoyed it so far. I know this is probably user error but initially I had no issues with removing one curve or polysurface from another polysurface. But recently I can’t seem to make anything work, and I just can’t tell what I am doing wrong. Suddenly push/pull doesn’t subtract from another surface, it just extends one and backfills the other behind it. Wirecut doesn’t cut, makehole won’t make holes, etc. The only error message I have gotten so far is when I try to use Boolean, for that I get the message “Objects do not intersect. Nothing done.” even though one object is within the other. I am attaching an example. It contains a honeycomb surface, with 4 excrusions inside the middle. I’m attempting the subtract the extrusion from within the rectanglurar surface, cut the surface in half down the middle, then use those 4 extrusions as “pegs” to help rejoin the two surfaces back together.
Draw a line where you want to cut the polysurface. You have to be in a view other than Perspective, so switch to top view and “Split”. You’ll end up with the part split. If you move them away from each other you can see what it did:
Now you can do the Boolean (remember you can’t do boolean on things that are completely inside another object, since we are surface modelling and not solid modelling). Use BooleanDifference and select the big object first, enter, and then select the small parts. Make sure during it, you switch DeleteInput to No:
