Fit a M3 screw through the printed holder and add a nut. Slide the holder into one of the profiles from top and place it flush against the side rail. Tighten the screw and check if nut has connected properly with profile.
The central endstop connector tab gets in the way when tightening the capscrew. As it is not used, it can be bent slightly so the hex key can fit past it.
Then fit a micro switch with 2 M2.5 screws onto the holder, with the blade hinged on the right.
The screws will cut their own thread in the plastic. Tighten enough to hold the switch firmly – but be careful not to over-tighten as this could strip the plastic thread.
Double-check that the micro switches are held firmly with no movement whatsoever, as this would negatively affect your printers’ accuracy!
Repeat for the other 2 endstops.
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