This is a complement for TUSH spool holder:
Since I was using a lot TUSH holders and I already have printed several of them I made this accessory for keep the spool in the same location, use any kind of rubber and glue it at the base if you have issues with this spool holders moving from they location due an slippery surface.
In use at the moment at a qidi tech 1, now the filament have more freedom for retractions.
This spool holder may fit on any normal size spool I use mostly hatchbox so the size was made for hatchbox spools.
This was made to fit thigh so I can avoid the use of glue, if your printer dimensional accuracy its fine you wont have any issues (all this was printed between a CR10s, QIDI tech 1 and a flashforge finder)