For some reason, z1 doesn't seem to want to move

[peepoo]

Basic Information:

Printer Model:
MCU / Printerboard:
klippy.log

Describe your issue:

I tried to run the btt skr2 with the test1 configuration, but the z1 motor did not work properly. Of course I have checked that the endstops are OK with QUERY_ENDSTOPS as per Verify endstops. x and y homing without problems.
Swapped z and z1 stepper drivers in test1 configuration => z1 motor did not work. Stepper driver seems fine.
Test2 configuration, swapped on mainboard side =>z motor did not work. z1 motor worked. So z1 cable and z1 motor appear to be OK.
In test3, swapped z and z1 stepper drivers with new ones. => z1 motor did not run.
test1 replaced all motor cables in test1 configuration =>z1 motor did not run
test1 configuration, replaced z and z1 motors with new ones =>z1 motors did not work
test4 swapped x and z1 cables on the mainboard side. x motor did not run. z1 motor ran. So z1 cable and z1 motor appear to be OK.
Test5 switched mainboard to btt octopus => z1 motor did not work
Changed mainboard driver from slot3 to slot6 in test6 =>z1 motor did not work
Changed mainboard driver from slot6 to slot7 in test=>z1 motor did not work

Where should I check next?
The klippey.log is taken with the test5 configuration

…
klippy.log (54.6 KB)

[EddyMI3D]

Deleted my stuff, sorry

[EddyMI3D]

What version of the BTT skr is that?

[hcet14]

@peepoo

I tried to run the btt skr2 with the test1 configuration

Why? Your picture says, some octopus…

Good luck, hcet14

[peepoo]

skr2 revB & F407 ,test1-4=skr2 test5-7=octopus ,now connected octopus. klippy.log uses octopus

[jakep_82]

In the log from your original post, the problem is your enable pin. It needs to be inverted, but on Z1 it’s not inverted.

[stepper_z1]
step_pin = PG4
dir_pin = PC1
microsteps = 16
rotation_distance = 4
enable_pin = PA0
endstop_pin = PG11

Should be:

[stepper_z1]
step_pin = PG4
dir_pin = PC1
microsteps = 16
rotation_distance = 4
enable_pin = !PA0
endstop_pin = PG11

[peepoo]

Thanks, the z1 motor runs great with Octopus.

[stepper_z1]
enable_pin = !PA0 # Correctly inverted

I didn’t realise the default was wrong.

The commented out enable_pin in driver3 is wrong. Should we tell them about this?
generic-bigtreetech-octopus.cfg

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The SKR2 did not work, it was the tmc2209 stealthchop_threshold. I commented it out and it worked. I’ll slowly look for the optimal value later.