Stepper Motor Gearbox ( 4 : 1 )

This stepper motor gearbox has a reduction of 4:1 and uses four 35 mm long M3 screws and normal M3 nuts, it also needs an axle that has a diameter of 2 mm that has also been cut down to 35 mm in length. PETG is recommended. The fully assembled gearbox has 4 holes that allow you to attach it to things with M3 screws.