Ender 3 Extruder Stepper Knob

A knob for the hobb gear and stepper on the Ender 3. Allows for easier priming of the extruder without having to control the stepper through the printer interface. Part should work on all printers with a 5.5mm diameter stepper on the hobb gear. For install, the fit will be tight but will work, just be gentle as to not harm your printer. Print flat on bed with no supports, overhang from the chamfer is minimal. Please share your makes! Also feel free to contact me if there are any issues.