4th axis as a "poor man's lathe"

[m_c]

What I also find strange is that I can NEVER, not once, force maximum current consumption, not even for a very short time. Because I think that is not good, since in that case it can not be called 180W at all. The maximum I could ever measure was below 2A. In my opinion, the driver should increase the current until maximum is reached when I try to twist the shaft when on holding, but long before maximum current, the motor throws an error and just release the tension all together, instead of increasing the current and applying more holding. So perhaps, the motor is a totally different one, while the label says it's a 180W but in reality, maybe it's just a 100W motor.

180W is the rated continuous power at rated speed.
Power output is directly proportional to speed, so at 300RPM aka 10% of rated speed, continuous power output is only 18W.

The only time the drive will draw full power from the power supply is when the motor is running at high speeds and loaded.