Monoprice Ultimate/Wanhao D6 Filament Spool Holder with Bearings

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This is another filament holder for the Wanhao D6 featuring bearings. The designs I attempted previously failed with my low-cost 608 bearings as applying pressure from only one side would cause them to seize up. The new design incorporates a spacer tube in the middle and small washers, which prevent this issue from arising. The large tube makes contact on the outside of the bearings, allowing all parts to move smoothly. I utilized a 9 cm M8 screw (or 5/16, 3.5 inch), washer, and nut that I had on hand to assemble this holder. Use the original holder nut provided with your printer to secure it in place.