Z axis endstop adjustment

Z axis endstop adjustment in Prusa i3 acrilic from Sunhokey is not comfortable and reliable. To replace it you only need one long M3 bolt DIN 316 ("with ears") and one plastic clip to hold it. Than turning it is easy and it is always well positioned. No springs.

You may also add a flat nut on the distal end of the bolt (like on the last picture) but it is not really needed.