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Just recieved my BLTouch v3.1 from ANTCLABS. Will be installing on my Anycubic Mega S with an X-Carriage MK4.
I've run into an issue with the length of the wire harnesses being too short. Not a problem that cannot be overcome. Just a pain in the rear. Wish there were more helpful images showing the connection in the motherboard. That being said, here's mine.

Am looking for some info that isn't quite clear. I see comments about using one of the Z-stops, but nothing in the documentation.

Has anyone gone with creating a quick swap connection, instead of sticking with their machine's original hotend PCB?