A1 Spool Holder 608 bearings Keyhole/Teardrop mount

prusaprinters

This should fit keyhole/teardrop shelves that have 36mm spacing, and are about 2mm thick metal. If you need different, let me know and when i notice your message I will try to make optional versions, send me exact measurements with pictures.Printed in PLA+ 0.2mm layers, 0.4mm nozzle, 4-5 walls, interlocked, 20% infill most parts.the Holder, and especially the teardrop/keyhole parts should be 5+ walls, and 40%+ infill. Supports will be needed for the teardrop/keyhole tabs, I used Trees successfully.You will need 3mm heat sets (standard voron ones), and 12-16mm long 3mm cap head bolts to attach the upper arm.Two variants, both with left and right alignment, for the arms.1: You need take off the A1 filament guide (there is an allen screw holding it on, come in from the end while holding the swivel part).2: Is a fixed arm, where you insert your own filament guide (10mm threaded bouden adapter), self tap into the hole providedSpool Cover: used to reduce friction further, especially with cardboard spools that are counter sunk.  I use it for all spools.Unfortunately doesn't yet hold oversized (3kg) spools. But should fit all 1kg and less spools.Note: Ensure your preferred filament that you print with this has great layer adhesion and you increase the perimeters/fill for the keyhole tabs so they are strong. I use eSUN PLA+ and with I was unable to pry it off my selves (the metal bent, so I stopped trying to break them).TEST: If you are not sure if this will fit your shelf unit, cut off a small portion of the keyhole part and just print that to test fit on your shelves.