Bondtech like remix, Creality Dual Gear

thingiverse

This is not my design; it belongs to Bondtech and is licensed under Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. ### Intro I decided to reuse my Creality all metal dual gear extruder in a better-designed body like a Bondtech-style extruder. ### Remix details - I enlarged the filament path to approximately 2.4mm. - I cleaned up the constraint path. - I increased the size of holes to 3.6mm to account for PETG shrinkage. - I widened the tolerance of locating pins due to PETG shrinkage. - I cut a section out of the top plate, allowing the lever to move with the Creality bolt. - I slightly enlarged the hole where PTFE is located to ensure it bumps up easily. - I designed a self-locking knob. ### Why do this? I was thoroughly disappointed with the Creality all metal dual gear drive extruder. My experience with it was very poor. Although it looks nice, it suffers from serious design flaws. The grub screw was too long, making it impossible to rotate. The spring was way too hard, crushing the gears against each other and causing it to self-destruct. Not a great experience at all. However, I have a genuine Bondtech extruder on another printer that works flawlessly. Unfortunately, it's quite expensive, so I chose to modify a design to make use of the parts from the Creality Extruder in a Bondtech clamping style.