Re: [CAD_CAM_EDM_DRO] Stepper speed

wanliker@... wrote:

> Under the circumstances that we are driving them, i.e., Gecko or Camtronics,
> how many RPM will a stepper turn? In this instance I am interested in
> driving a prop in a model boat.

Steppers are not optimized for speed, but for positioning. They are very inefficient
converters of electrical to mechanical power. Much of this has to do with the
dumping of electromagnetic energy in the windings into heating resistors in the driver.
Also, the iron and copper losses in the motor are very high.

Vexta (Oriental Motor) 5-phase steppers can go to 5000+ RPM, but are still quite
inefficient. Others will deliver little power at all above 1000 RPM.

If you are using a Gecko drive, why not the Gecko Servo with a DC brush motor?

Jon