Connecting a bltouch to the pi instead of the printer main board?

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1

Is there a setup guide or any instructions on how to connect a bl or cr touch directly to a pi 4 running octoprint, including powerering it?

This is for a setup using an ender 5 where I can't open the printer up and make changes, or change the firmware from stock, but I can bolt things on to the outside.

Everything needs to be able to be done without opening the case on the ender 5, is this even possible?

2

Unfortunately that's not possible.

Your printer's firmware is responsible for bed compensation, so the probe must be connected to the printer.

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3

It might be possible with Klipper though.