Check Valve Body

This re-mix allows the use of rectangular steel sheets captured between two bolts to provide the bearing surface for the balls used to stop the filament from returning to the material roll. The plates replace the shaped comb component. The plates need to be 20mm x 25mm x 1.2mm, flat, and well de-burred. The plates can be added after the print is complete, but the print will still need to be paused to add the 4mm ball bearings. This is a little easier to make due to the combs (more) complex shape. It also allows the plates to be removed later allowing access to the bearing cavities for debris cleaning. The hardware to capture the plates is M3 x 15 with the head of your choice (I used SHCS).