Prusa i2 Spool Holder

thingiverse

EDIT: Added a 150mm long version due to suggestion. That is 20mm greater than the original 130mm version. A spool holder for the Prusa i2. It rolls very easy and gives little rolling friction. Easy to switch out spools too! Instructions Print two of the pieces. Put them anywhere on the 5/16" or 8mm threaded rods atop the Prusa i2. Bolt them down with the M3's It uses (what I used anyways): 1x 5/16" threaded rod 4 x 5/16" nuts 2 x 608 bearings (I used 608zzg) 8 x M3x18mm (I used M3x20) 8 x M3 washers 8 x M3 nuts I tried many different spool managment jigs from here and they all gave slightly too much friction for my liking. So I made my own and it has been working flawlessly for 4 months. Put some tap on the foward threaded rod to reduce friction even more. At first I suspected it would be wobbly, but it is actually very rigid with the M3 screws on the bottom. I have used Octave ABS and JustPLA spools and it accomodates both very nicely. Happy printing!