Spring & Bolt retainer MMU

thingiverse

Every time I flip open the MMU to work or clean, the bolt suddenly drops out, sending the spring rolling away and leaving me scrambling on the floor with a flashlight for what feels like an eternity.\r\n\r\nNo more of that frustrating nonsense!\r\n\r\nI've added some extra security features to my bolts, probably tightened them a half turn less than usual, and now I'm enjoying significant savings.