swapping Z axis driver to E1 driver issue - Marlin 2.0.93

Hi,

My SKR E3 Turbo Z axis stepper motor driver is dead - probably burned out when the head crashed the other day.

As the SKR E3 Turbo can handle a second extruder - E1 - I have tried swapping the pin configuration in Marlin\src\pins\lpc1769\pins_BTT_SKR_E3_TURBO.h.

This has mostly worked - I now have control of the Z axis again but I have no ability to extrude out of E0.

I have confirmed my extruder is plugging into the E0 socket an that none of the E0 configuration in the above file has been touched.

When I put the original firmware back and the connectors back as they were I can extrude but not move the Z axis.

Am I missing some connection between E0 and E1 at all in the code ?

Attached is the file mentioned.

Thanks.
Dave Anderson
E3 Pro/SKR E3 Turbo

Have done the same and it worked perfectly.

Post code changed and I will take a look for you. and compare with the code i modified.

I use Marlin my version was like 1.1.7 though can convert this any marlin version.
If you are using another firmware can post what was changed an maybe you could fix from there.

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Computer Programmer / Electronics Technician

I don't see any problems with your changes to pins_BTT_SKR_E3_TURBO.h . Extruder should be cabled to the E0 connector and the Z stepper to the E1 connector.

Since none of the E0 signals were touched there shouldn't be a difference in E0 operation. Double check that the file you uploaded here is the same one being used to compile.

Thank you for your replies.

It's good to know my logic wasn't wrong!!

I recompiled the firmware and also (re) checked the physical connections to the board.

I can now extrude and control the Z axis.

Thanks.
Dave Anderson
E3 Pro/SKR E3 Turbo