Z rod knob for geeetech A20M

thingiverse

Z Axis Knob for Geeetech A20M Allows Easy Movement of Z Axis. This accessory is made up of three main components: the Z axis ball bearing holder, its cover, and the knob itself. To install this accessory, you will need to gather a few essential items. These include one 2.5mm socket screw along with its nut, as well as two 3mm countersink socket screws paired with their nuts.