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o_lampe
Interesting, that the Vref potmeter still has a meaning, although you've set the current by SPI in FW. I guess SPI wasn't connected?
You know, I don't think setting the current in Marlin has any effect when it's installed like mine (CFG0 > CFG3 disconnected and not wired to SPI pins on RAMPS). The main thing for me is that it has achieved what I wanted, which is a much quieter Y axis.