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I have a Ender 3 Pro V1. I installed the Bigtreetech SKR mini E3 V1.2 + TFT35 touchscreen + Antclabs BLTouch + a pre compiled bin from https://marlin.crc.id.au/ .

  • the board works

  • the screen works

  • the BLTouch is erratic

    • it tries to exceed the X limits and makes the loud clicking sound while performing the bed leveling. it even tries to move past the X end stop switch.
    • when printing, it moves to the far right rear corner and extrudes off of the bed.
    • OctoPrint can no longer connect with the printer.

I think this is just a problem with how the bed size is setup and it identifying the limits of the print. I just can't figure out how to configure and compile a working bin file.

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A) it tries to exceed the X limits and makes the loud clicking sound while performing the bed leveling. it even tries to move past the X end stop switch.

This tells me that the firmware you use is faulty - it has a faulty bed-size or home.

B)when printing, it moves to the far right rear corner and extrudes off of the bed.

This can be intended in the G-code, or bad homing, again, firmware home position.

C) octoprint can no longer connect with the printer.

This, again is a thing that happens if the firmware is not configured properly or flashed correctly.

You might have accidentally chosen the wrong firmware distribution - your config points to the Ender 3 - SKR Mini E3 v1.2 - BLTouch, not the Ender 3 v1.5 or v2 (slightly different hardware), and possibly adjust the proper homing position.

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