Remixed to use more common M3 screws and M3 Threaded inserts.

Does not need supports.

Use six M3 by 6mm Hex or Button head screws and six M3 4.6mm OD by 4mm length threaded inserts.

UPDATE 1-7-2023: Added two back versions with holes for magnets (6mm or 8mm)

Your choice of three 6.4mm X 3.2mm magnets, or two 8mm X 3.8mm magnets. The plain back with no magnet holes is still included, Still no supports required.

Follow the instructions from the original design.