Am8 2040 Filament guide with anti-crash technology

thingiverse

I decided to create a ball bearing spool holder from Denos' design, which is an excellent concept. Denos also designed two filament guides, one of which had an opening too small, causing significant drag on the filament. The smaller guide was positioned forward of the spool holder, and when a bind occurred in the filament on the spool, it would be pulled forward off the holder onto the build platform. To address these issues, I modified Denos' concept by adding a mid-spool holder guide that pulls the filament down before it exits through the front guide. Originally, Denos' design had slots for feeding the filament, but I encountered problems with it pulling out of my setup, so I replaced them with complete circles in this revised design.