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Dual X carraige X2 stepper pin define (no replies)

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I have just modified my P3Steel, Toolson edition, to a dual X carraige with two E3d hotends.
Using my old 1.0.1 firmware, I was able to configure the X2 stepper pins in Configuration_adv.h and everything was working.

Out of guilt for not keeping with the times, I upgraded the firmware to 1.1.x and managed to configure most of it, and even found the typo in endstops.cpp (line 444).
But, I am yet to figure out where to allocate the stepper driver pins for the X2 stepper. There is no longer an option in Configuration_adv.h and looking in pins.h, I found it at line 611 but after changing the pin allocations there, I still have no movement from the X2 stepper. ie, it will not move during the homing cycle.

I am running a 2560Mega with Ramps 1.4 and a stepper extender connected to
#define X2_ENABLE_PIN 44
#define X2_STEP_PIN 42
#define X2_DIR_PIN 40

I have attache my config files for Marlin 1.1.x

Any help would be greatly appreciated.

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