Gikfun Mini Solderable Breadboard Mount

I am wiring an interlock board for our makerspace's K40 laser cutter, and I used a Gikfun Mini Solderable Breadboard to do it. However, I needed a way to mount the device in the laser with the corners supported, as the holes are in the middle of the board and induce weeble-wobble (technical term) if you're pressing on it.

I am using the plastic uber-velcro to mount mine, but you could also add holes if you want. I have included an .stl of my design and an .f3d file from Fusion 360 in case