Ender 3 Auto power off switcher

Add some feature on your printer: An auto power-off switch.

The goal is to auto power off your printer when the print has ended.
Useful for (very) long prints


Based on this video:
https://youtu.be/1jNsF7NxjuU

Material needed:
- Electrical small switcher: https://www.amazon.fr/gp/product/B073PCWDY6
- Electric cable (~40-50cm)
- 2x Electric pod (like this: https://www.amazon.fr/110x-Cosse-Electrique-Plate-Bleue/dp/B075XFKLGH)


Add this gcode at the end of your print (adjust the X move depending of your printer, DO TESTS BEFORE):

; This block wait for printer temperature to cool down before power-off
M117 Cooldown temperature ; Display message
M106 S255 ; Fan 100%
M109 R50.000000 ; Wait for temperature to be 50C
M104 S0 ; Extruder heat stop
M140 S0 ; Bed heat stop
M106 S0 ; Stop fans
M117 Finished ; Display message

; This block is used to hit the power switcher and auto power-off
G90 ; Absolute postionning