Ender 3 v2 neo auto poweroff switch

Modification of the E3V2 design to fit specifically the Ender 3 V2 Neo

Recommendations:

a) Connecting the autostop switch in parallel of the printer switch (i.e. connecting both switch pin to pin), and not serially (as suggested in the original post), greatly simplifies the usage :

• By powering via the rear switch, the auto-shut is disabled
• By powering via the front switch, the auto-shut is enabled

b) Use a cable of the same diameter as the ones in the printer to avoid any power / overheating problem

c) Print the model in the provided orientation with tree support touching buildplate 80% overhang angle (other parameters as you wish)

Here is the End G-code I'm using :

G91 ;Relative positionning
G1 E-2 F2700 ;Retract a bit
G1 E-2 Z0.2 F2400 ;Retract and raise Z
G1 X5 Y5 F3000 ;Wipe out
G1 Z10 ;Raise Z more
G90 ;Absolute positionning

M106 S0 ;Turn-off fan
M104 S0 ;Turn-off hotend
M140 S0 ;Turn-off bed
G1 X0 ; Y0 Present print

M109 R45; Wait for the hotend to cool down to 45C

M211 S0 ; disable move limits
G1 X223 F2000 ; SHUTDOWN USING SWITCH
M211 S1 ; enable move limits if printer is On

M84 X Y E ;Disable all steppers but Z

Demo video : https://vimeo.com/manage/videos/826370571