Here’s an example of why I wrote this script. I have a modeling project for an old house which has a bunch of windows and doors, many more than I wanted to cut one at a time. So after I created the interior and exterior walls, I drew 2D curves on one side of each wall where there was to be a window or door. The curves were named Windows and Doors and the walls were named Ext. Walls and Int. Walls. I then ran the CutWalls script, selected Int. Walls and Ext. Walls as the base objects, and selected Windows as the objects to subtract, chose 0.75” frames named Window Frames, and Glass for the glass. The script then cut, framed and glazed 39 windows. Next I ran the script again, selecting the walls again as the base objects, but this time selected Doors and didn’t have it put the glass in. The script made 13 door frames. So, all the doors and windows were done in less than a minute. :-)

--Larry

Here’s the before and after: