adjust. min/max endstops for Z-axis

• mount for endstops, adjustable for the min. endstop
• mount for microswitch with wings to prevent accidental disturbing of its position (rotating around sliding rod)
• bolt tip to give a bit of room for deviations
  Everything designed for my Prusa i3 (Hesine).

I prefer to use lock nuts (DIN985) in this vibrating environment, so there is room (a tight fit) for the M3-one in the adjuster-screw-block. If you don't have one at hand you can use a normal one plus one at the top of that block to secure the position of the screw.

Of course you need 2 longer bolts to attach the mount and the motor.
I used M3 screws with 25mm thread.

Edit: the wings of the max. endswitch mount got a bit competition of the lead screw nut plus screws, so I added a couple of mm to the height of the "min_max_endstop for Z-axis". Hence a renewed .stl-file for that.