This is a remix of "New Prusa i3 MK1 & MK2 Spool Holder V2 - Quick Change" ( by IsmaelPR1 ( I really liked his design, and am printing one for my Prusa MK2S, but I wanted a matching holder for my Tevo Tarantula. I remixed this so the holder can hang on a 2020 extrusion. There's a provision for M4 screws to mount it to the back of the extrusion. PLEASE NOTE: This was remixed from his 90mm holder. For the 140mm rolle and accessories, please visit his thing. I have included IsmaelPR1's 90 mm rolle and m8 rods, though I used 5/16" bolts for mine.