Printable MK5 replacement filament drive

Based on the Coreystruder. My MK5 filament drive cracked and blew (see images), so I needed a printable replacement filament drive on the double. So I patched up the filament drive and printed this, a variation on the Coreystruder which was almost exactly what I needed. Changes include: - Ribs on the motor side for better support - Reduced vertex count on holes/edges to print better - M5 screw/nut combo for tensioning the plunger, same as MK5 drive - MK5 compatible screwholes and tongues on bottom - A cover to hold the plunger in