Hi,
my Robin Nano v3 just arrived, MKS TMC2209 v2.0 drivers includet. But I don't know what current my stepper motors need.
The ons for the x-axis is labeled 'STEP MOTOR 42SHDC3025-24B' and I found different information about this driver on the internet. Some websites say it requires 0.9A, another website figures out 1.5A are needed. So how can I figure out what the right current is?

... search datasheets of the motors -- They don't need the full rated current ... have some running happily with 40-30% only

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Viktor
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The motor data sheet is 0.9 amps. There is no harm in going lower, if the motor will provide the torque you need.