XYZ Da Vinci Extruder Repair Parts

thingiverse

I designed a custom bracket to replace the aluminum wheel failure that occurs on the Da Vinci. I wanted a direct replacement, so I centered my design around an MR137ZZ bearing with a diameter close to the aluminum wheel's size. EDIT (2/3/19): I recently redesigned the original bracket. This time, I chose two bearings for the peg and it made a huge difference. My machine is printing a mausoleum piece that I never would have trusted before, and it's holding up great after almost 8 hours without any issues. I've already printed two smaller items, but I wanted to push this new bracket to its limits. The second part with the cylinder was added because my first test tapered the bearing area too much, causing the second bearing to fail. EDIT (2/10/19): My version 2 prints were successful, but I noticed some flexing in both the bracket and the metal plate that might have contributed to filament issues mid-print. So, I added another screw location that aligns with the motor mount. Thankfully, additional prints turned out fine.