X Axis Endstop Screw Holder

This is just a remix of the part that holds the screw for the endstop.
I used the original part and saw that due to a little vibration from the steppers the screw can start to wander upwards or downwards essentially disrupting the layer height calibration.
So i redesigned the nut hole to be able to use a self locking (nyloc) nut.
With this simple modification the screw cant move any more and calibration stays perfect.