Based on my experience, just now, propose adding the NOTE: below to the Not Shop verbiage for this part.
Upgraded Belt Guard
This is a 3D printable belt guard with additional wings to eliminate space between the gears and the spool. You will have to print 4 and take apart each arm to install them. The should help prevent belt jamming. NOTE: 3D printed PLA is softer than injection molded plastic. When installing this part, ensure the nuts are firmly seated, and be extra careful with the amount of tightening. Overtightening will crush the leg of the part, and cause it not to sit properly in the arm.
3D printed PLA is softer than injection molded plastic. When installing this part, ensure the nuts are firmly seated, and be extra careful with the amount of tightening. Overtightening will crush the leg of the part, and cause it not to sit properly in the arm.
Consider printing this part with the 3 legs facing upwards. Depending on your printer and settings, printing it with the legs facing down can leave support material traces that can interfere with the belt fitting properly underneath this part later on in assembly.
