Prusa i3 Mk3 Roller Spool Holder with Safety Bar

thingiverse

Doesn't need supports, uses 4 608zz roller bearings inside the rollers. If you've already printed off the roller from Olef, you only need to print Univ.Roller_Stand_Bracket_i3_mk3_LH.STL. Everything else is exactly the same. This is a remix of Olef's remix of DWONH's spool roller. I've used both for my Einstart-S and my Prusa i3 MK3 and they've been amazing. What's not amazing, though, is if your filament has a cross or knot in it and gets pulled off the rollers. Although you should always check and take care of your filament, mistakes can happen. The idea is that the bar would go through the center of the spool without actually touching it. That way the rollers can move freely but if the spool gets stuck it won't get pulled off the rollers onto the bed below. *This is no longer a work in progress. Finally got the alignment right and it's centered how I like it on both Inland and Prusa brand filament spools.