Chat OnlineBowden Extruder Head Part for Kossel
Geared Stepper recommended for this extruder part is as following:
Flanged Gearhead Stepper or G17-48-C5X30, G1748-C19X30 geared nema17 stepper motor
https://www.robotdigg.com/product/1138
It also can be used with a standard stepper motor
Another option of power stepextruder is Bulldog Extruder.
