this is a thing i design for the universal shelf system that you can by in Belgium in every hardware store. You need to mount the racks with some bolts in the wall. The problem is that when u use the top shelf openings, you have a lot of moment on the system. Whit my setup it was a problem because the original bolts came out of the wall. So i design a extra support at the top of the mounting rack.

You can mount the extra support with one m10 threat and some chemical anchoring glue. Also there is some room in the piece made for a big washer of the M10 thread. So the force will be divided over the piece.

Works great with me is mounted for 6 mount now and the bolts stay in the wall now.

prusa mk3

0.2