MPMD (Mini Delta) bed adjuster (hidden clips)

There is new solution accessible from bottom of printer:
https://www.thingiverse.com/thing:4127984

This adjusters are using inner screw hole in the bed. The holes are located inside of the printer. Holes are for 3mm srew (M3).

You need:
3x M3 screw 3x16mm (or longer then 16mm)
3x M3 nut

Print:
3x spacer
3x adjuster

Instruction:
Remove lowest cover from under the printer.
Put nut into adjuster (use hot for hard insertion).
Put adjuster with nut on screw - nut first = nut closer to head of screw.
Put spacer on screw - widerhole out = wider hole closer to end of screw.
See pictures.
Screw the screw into bed - fully - use a tool and a littel power. The screw must be fully screwed in to the end and hold in place.
Use adjuster to adjust the bed. The spacer should move freely on the screw. Check it befor mounting.
Adjust the bad - you can measer the up-down position, or just use feeling of the click of the microswitch. The click should spend the same space-length.