Oh man. I am almost done with the firmware and ready for the slicer. I have no idea what Slicer I want to use for this BTW. I am guessing Prusaslicer? But I would rather use S3D. But not familiar at all with how I would go about doing that. Anyways. I am getting there. I copied over my kp,ki,and kd values from the last firmware with the last mainboard but I need to pid autotune all 3 heaters. I think that is as far as I can go until i get a test print to check the two carriages are sync'd up in printing. Almost there. Here is a video on the Dual Z Auto Align in action..

IDEX Dual Z Auto Align - YouTube