Automatic power off for Ender3

Holder for microswitch with roller, for automatic power off of Ender3
I decided to design this thing to automatically turn off the printer after printing is finished.
While the hot table is in the X-200, the table roller holds the microswitch in the off position.
To install it, you will need:

-2 screws M4 12mm
-2 nuts with hammer head M4
-electric cable 20 cm
-MSW-13, Microswitch with ROLLER 17mm ON-(ON) (5A 125/250VAC) SPDT 3P
https://www.chipdip.ru/product/msw-13

Installation:


-Solder the cable to pins 1 and 3 of the microswitch network cable
-Pass the cable through the hole in the holder to the other side.
--Push the microswitch into the holder all the way into the housing.
--Remove the X direction tension roller
-Install a pair of TNut in the right groove of the aluminum profile
--Return the roller to its place.
--Insert this wire into the printer's power gap, and securely isolate the connection point.

Check the final code:
{if max_layer_z < max_print