Replacing second feed motor with 0.2A stepper

[RamiR9 6]

I am designing an expansion Kit that could allow some new functionality and improved print quality on Ultimaker S3 (later S5).

I need to replace the second feeder motor by a smaller stepper motor rated at 0.2 A.

Any advice on how to reduce the current for the smaller motor?

 

I will be adjusting the G-code later to use the second feed motor for a different function while the first feeder motor operates normally and prints using core 1 normally.