20mm extrusion Filament Spool Holder for prusa i3 clones

This filament spool holder attaches to printers with a 20 20 mm extrusion frame, specifically my Max Micron prusa clone.
Print with supports for the bit at the top, mine warped a bit and it wasn't a problem.
It's a fairly tight fit but I angled the tabs so it's easier to attach. Push the "front" on first (the side that prints on top, then push down the "back" (the side that prints on the bed), you'll see if you print it.