Ender 3 CR10 Direct Drive Groove Mount for Petsfang Mod

thingiverse

I designed the petsfang direct drive mod for the ender 3 or cr10 (https://www.thingiverse.com/thing:2963434) and discovered that at high extrusion rates, the extruder would be forced upwards and away from the hot end due to back pressure. The short piece of bowden tube was unable to grip firmly enough to hold the pressure in place. To address this issue, I created an adaptor that mounts into the BMG using the same groove mount as the V6 and screws directly into the top of the stock hotend in place of the bowden fitting. So far, it has been working effectively and a piece of bowden tube fits smoothly down the middle of the adaptor. Currently, the adaptor features a 4.1mm hole down its center to accommodate my bowden tube. If your bowden tube measures more than 4mm in outer diameter, please let me know so I can upload additional sizes for compatibility.