Prusa MK2 MK3 filament Holder with bearings
thingiverse
Youtube link to build Video#1 with the original design https://youtu.be/v9blrlhuXA0 Youtube Video #2 with the Single bearing design for the spools https://youtu.be/4cQmtWVd8wc Youtube Video #3 How to Clean out 688 bearings to make them spin better. https://youtu.be/S0IlBqod_kQ This filament holder was designed to streamline filament changes. It accommodates any spool width and can be swapped in seconds. Four parts need to be printed: (1) two filament rail frames, mirror one in your slicer for a right and left pair; (2) four bearing holder spools; (3) eight split bearing spacers; (4) a bearing ring 22x3mm x 4. You'll also require four 5mm x 22mm screws, which can be longer. Get them at Lowe's or Home Depot. In addition, you'll need 688 bearings x 4. You can find them on Amazon through this link: https://amzn.to/2rHa2dh Before starting the build, watch my YouTube video on assembling the frames and how they work with the Prusa MK2.
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