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I think it is, yes. I am pretty sure it has been there before but I couldn't hear it as good as I can now as the motor was louder than this. The clicking seems to be just the retraction when the filament is pulled out and the gear changes direction. The motor is as cool as it was before (checked it with a infrared thermometer, it is around 34 C

I am still amazed how well these TMC stepper drivers are working.