Super simple auto switch-off

This is a simple solution to turn off the printer after job or any time. You wont have to modify the firmware because it's a mechanical solution.
Simply, install the thing on the Y axis and move the bed to that extreme position after printing. The bed will press the switch to turn the printer off. The design is for fixing to axis diam 8mm

There are two pieces: one is the case of the switch and other is the fixation to the Y axis. You can adjust them to get the right height to the bed.
You will need to connect the switch in serial connection to the main power.

Enjoy it!