Prusa i3 MK2 (MK3?) Spool Holder / Spulenhalter

thingiverse

Hello, The original spool holder from Prusa Research for the MK2 didn't live up to my expectations. I created a modified version of this printer accessory myself. I tend to design things with an extra margin of stability, but that might not be a bad thing after all. (With this spool holder, the printer could actually wear it out... ) In addition to printing these parts, you will also need: 2 M3 square nuts 2 M3 x 30mm cylinder head bolts 1 piece of 8mm threaded rod (approximately 200mm long) 2 M8 nuts 1 optional M8 washer (24mm) The assembly process is a breeze. To install the spools, simply place them on matching adapters attached to the axle. You can find suitable adapters here: https://www.thingiverse.com/thing:734279 Or try these alternatives: https://www.thingiverse.com/thing:601401 The STL files have been optimized for printing with 0.2mm layer height, but 0.3mm should also work. The screw holes in "part_b" are intentionally not continuous to make the print process smoother. The thin membrane (0.2mm) is easily pierced after printing. A small clip prevents unwanted movement of the spool on the axle.