You'll need a little PLA filament to print it, and two screws to hold it on your wall.
Use the optional mods stl file as a modifier in Slic3r and set infill density for the mods to 100% to give extra strength around the screw holes.
Former electrical engineer, I became a dentist in 2011. I designed and built my printer, Son of MegaMax, using surplus machine parts at the Milwaukee Makerspace.
My newest printer design, Ultra MegaMax Dominator, is a coreXY machine with a 300...