Light relief - hardware bug or feature?

[achrn]

So I put my 3D printer bed back together, complete with tidy covers around the print bed, and found a slight hardware bug remarkable feature:

I can do a remote hard power-off:

G1 X0 Y140 Z0.5
G1 X-50

does this: https://player.vimeo.com/video/487182136

[mrehorstdmd]

I use the same technique to trigger a camera to make layer synchronized time lapse video.