Arty-Z7 protection

Just a kind of box to protect the Digilent Arty Z7 board.

I put two STL files, the "90" version expects the board to be 9mm tall with rubber things, the "95" is for 9.5 mm.
The version shown is 9 mm, and it requires maybe a bit too much force to assemble and may break your print if your layers don't stick well, so you should try 9.5 mm.

Honeycomb's sides are 0.45 mm thick, this way Cura will only make one travel and avoid a lot of retractions.