Printrbot Extruder Remix
thingiverse
I used TinkerCAD to merge models 281015 and 446480. I then processed these through the netfabb cloud client to rectify any mesh irregularities. Additionally, I incorporated the pin from model 281015 for thoroughness. Standard Arm Version: https://tinkercad.com/things/1zOgEpKKkNh Left Arm Version: https://tinkercad.com/things/cjlAE4hfMGQ Extruder Base: https://tinkercad.com/things/0KpDCJTWMsa Extruder Base Left: https://tinkercad.com/things/332oORRDXI1 Instructions Use the left arm and base version if your extruder motor shaft aligns with your x-axis, otherwise, the standard version should suffice.
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