3d model description
A 1.75mm bowden extruder, intended to be mounted to 20x20 aluminum extrusion. Universally usable.
Closely guides the filament after the hobb...ed gear.
To mount the bowden coupler, drill out the mounting hole to 9mm, then soak with acetone. When the plastic has softened up, carefully screw in the coupler until it's flush.
The screw the lever rides on should jam in the stepper's thread when tightened against the M3 screw that holds the motor together from the opposite side. Use thread lock for best results.
Modified versions with different bowden mounts, spring options and filament diameters coming soon!
Based on / inspired by WhosaWhatsis' "Minimalistic MK7 replacement" http://www.thingiverse.com/thing:15718
3d model print parameters
- 1x Hobb-Goblin/MK8 hobbed gear thingy
- 1x 624 bearing
- 1x M4x18 screw
- 4x M3x18 screws
- 1x ~10x30mm spring, 1mm wire dia ([EU] Conrad/Voelkn...er has perfect 10.5x28.5mm springs)
- Some M3 washers
- G1/8 bowden coupler (e.g. E3Dv5 coupler)
- Regular 4mm bowden tube
Other screw lengths, e.g. 20mm are also possible with some extra washers.