Rat Rig Community [Unofficial]•3y ago

Stepper Driver Port broken how to chang the Slot on Octopus F446

Hi, I just finished again a RatRig 400 but my Motors never run well . After a lot tries and different steppers i get all running until one Motor , after trying switching Motors / drivers I tired the board also in an Running RatRig 300 with the same issue . So all looks like the Stepper driver Port is broken . Next days will Test the board from the 300 in the 400 but so long i want to try to change the slot of the stepper Driver . Does anyone tell me how to do it ? BR Thomas

16 Replies

blacksmithforlife•3y ago

Which motor do you want to switch (A, B, extruder, or one of the Z motors)?

LuchadorOP•3y ago

Right ( think its B or ? ) second slot counted from power sockets

blacksmithforlife•3y ago

octopus 1.1 or octopus pro?

LuchadorOP•3y ago

octopus pro f446

blacksmithforlife•3y ago

in the USER OVERRIDES section:

[stepper_y]
step_pin: <y_step_pin>
dir_pin: <y_dir_pin>
enable_pin: <y_enable_pin>

[stepper_y]
step_pin: <y_step_pin>
dir_pin: <y_dir_pin>
enable_pin: <y_enable_pin>

you will need to replace those with the new stepper port you are using (see https://raw.githubusercontent.com/bigtreetech/BIGTREETECH-OCTOPUS-Pro/master/Hardware/BIGTREETECH%20Octopus%20Pro%20-%20PIN.pdf)

LuchadorOP•3y ago

ok so i moving from Motor 1 to Motor 3 , step_pin: <PG4> dir_pin: <PC1> enable_pin: PA0>

blacksmithforlife•3y ago

[stepper_y]
step_pin: PG4
dir_pin: PC1
enable_pin: PA0

[stepper_y]
step_pin: PG4
dir_pin: PC1
enable_pin: PA0

You might need to invert the enable_pin if so it would be

[stepper_y]
step_pin: PG4
dir_pin: PC1
enable_pin: !PA0

[stepper_y]
step_pin: PG4
dir_pin: PC1
enable_pin: !PA0

LuchadorOP•3y ago

get error Pin '<pg4>' is not a valid pin name on mcu 'mcu' tried PG4 and pg4 same error

blacksmithforlife•3y ago

remove the < and >

LuchadorOP•3y ago

ah just see

blacksmithforlife•3y ago

try

[stepper_y]
step_pin: PG4
dir_pin: PC1
enable_pin: !PA0

[stepper_y]
step_pin: PG4
dir_pin: PC1
enable_pin: !PA0

I bet that will work obviously make sure you have the correct jumpers set on the motor port as well

LuchadorOP•3y ago

Unable to read tmc uart 'stepper_y' register IFCNT i removed all jumpers until the one who need to stay ( secon from down) taht issue i get often befor the slot broke down

blacksmithforlife•3y ago

https://github.com/Klipper3d/klipper/issues/2741 the same troubleshooting steps should apply - could be a bad driver, bad wiring, bad power, etc.

LuchadorOP•3y ago

tried 2 drivers just now , rest of the printer was running just bevor i switched the board ( same board so i could double check the issue)

blacksmithforlife•3y ago

Did you check the wiring to the motor?

LuchadorOP•3y ago

running well with teh original board only differences are stepper 2209 v1.2 and the board now testing has v1.3 board is mounted in a Motors working well bevore maschine just unplaged the working board and connected the bad one could it be taht the board has more issues ?

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Stepper Driver Port broken how to chang the Slot on Octopus F446

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