Help:Can't set up the stepper motor in the extruder slot

Basic Information:

Printer Model: custom
MCU / Printerboard: Octopus V1.1
Host / SBC BTT Octopus V1.1 + CB1 (SPI mode, external driver power at 48V)
klippy.log

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Describe your issue:

I’m new to both printing and programming, and after a day of searching for information on setting up klipper, I couldn’t properly configure the fifth stepper on octopus.

please help me and explain why it doesn’t work.

printer.cfg (5.9 KB)

Hello @Fierfenix !

What problem do you actually have?
How do you know that the fifth stepper does not work?

Keep in mind that stepper 2 has two outputs.

Also: With stepper 4 and 5 the UART Pins do not fit to the other pins.

During the test to return to the 0 point, any motor that I tuned in driver 5 did not respond to commands and remained stationary

You swapped the UART pins with stepper 4 & 5.

Please verify.