Hi Ari, so also another complicating factor is some of the leg structure is poking up just by a very tiny amount up past the top surface of the board, making nearly a kind of "single point" tip contact from some bottom pieces and the top surface. Here I've made a high resolution mesh and you can see some little tiny leg spikes sticking up through the top:



So anyway that's another complicating factor, having a pointy object rest its point right on the inside of the top surface of another solid will make for a difficult to handle boolean.


By doing ShrinkTrimmedSrf it was then possible to do one big group union for getting the board and the tiles togehter, now to get the legs on I'll probably first try to make a median surface going down the middle of the board (by offsetting the bottom up), and cutting the legs with that first to cut away these areas that are just barely poking through the top.

- Michael