-Z Endstop Mount - Flyingbear P902

A somewhat more elegant and unobtrusive Z-endstop for Flyingbear P902.
...that also minimizes vibration and squeaking from the Z screw rod.

Use supports. There should only be one, and it will be trivial to pop out of the hole.
Layer height irrelevant, I used 0.2mm, PLA.

Two of the standard screws are replaced with longer ones for this (M3x16mm through the printer Z frame and this printed mount), and two (M3x20mm through the printed mount and the endstop switch) are added.
Also one M3 30-40mm for the adjustable probe part.
Two of the usual M4x8mm for the t-nuts into the 2020 frame.

You need a spring in the probe. In the photos I have just slapped in two nuts until I receive the various springs i have on order.

Installing it is a bit of a pain. Remove the Z nema and it's rod connector, unscrew the brass drive ring from the hotbed frame. Slip the printed mount block onto the screw rod and put the nema/rod roughly in position while you screw the two original bolts back int