Prusa I3 Z Axis Adjuster

You will need a couple of 3 x 20 mm adjustment screws to complete. I drilled a mounting hole in my existing Z endstop to allow it to be mounted on the stepper motor plate. I had to file a square area for the limit switch since it had to go on the other side.

I suggest using PLA as it is harder and more stable than ABS.

For the arrow component, make sure you start the threads so the screw goes in straight. I did this while still on the bed. Then when you thread it onto the adjustment sc