3D printable Sidewall

Added this simple puzzle-like 3D printable sidewall so you don't need to buy the 360mmx360mmx2mm Plexiglas. 

Sidewall is split in four individual “puzzle” parts that you can print them with the Core One or MK4. I printed them with about 10% honeycomb infill and without any solid top or bottom layers. These parts have a clearance of about 0.15mm, so they are probably a little loose. I just glued them together.