Bondtech Feeder NEMA 17 Cetus3d MKII

thingiverse

I'd gotten fed up with the terrible feeding section of the Cetus MKII. I created this to convert to the 5mm Bondtech Feeder Drive setup. This particular conversion is for any 42mm Nema17 motor (I used the 17HS4401 in my case). Check my other things for the same conversion specific to the Cetus MKII extruder servo (Moons Servos). V1.1 Moved idler out to add 0.1mm backlash. Not enough torque with this servo to push through the filament when it's at 0 backlash. Also moved the "access hole" on the side of the main body up a bit, centered with the drive gear. Not critical, but provides easy access to the allen set screw if needed. Also opened up holes in body and cover for screws. Went with 2.1mm on the body and 2.5mm on the cover. Finally, increased the offset ledge height for the idle bearings by 0.2mm. V1.2 Moved idler out another 0.2mm. Increased diameter of main_body idler shaft hole by 0.2mm as more fragile PLA will break when trying to push it through. V1.3 Added a model specifically for ABS as the backlash was too tight due to shrinkage if using ABS with the PLA model.