KP3S PRO Z axis endstop screw tweak

prusaprinters

The Kingroon Z homing screw was too long and I could not screw it in enough to have good first layer. Replace Kingroon screw with any M4 ISO 4762 Socket head screw. M4x16 should be best but beware - it was quite a challenge to get it screwed in against the spring preload. V2 is a bit wider and with grooves for tightening. The grooves in the inside diamter are meant for seam placement to dial the diameter more precisely. I pressed the cap onto a screw using toolshop vise.