Adjustable Z switch, Ender 3 series.

Fine adjustment of the Z switch is difficult using the standard T nut fixings so I have designed this adjustable switch mount. 1 turn of the adjuster screw gives 0.5mm in either direction. 5mm total adjustment range. Makes setting up the bed, with the correct spring preload much easier.

Extras required are;
1 M3 x 35 cap head screw.
3 M3 nuts.