It has been bought to my attention these new steppers and thier great specs.
You can see them in action here... http://www.shopbottools.com/PRTalpha.htmWhat's an AlphaStep motor?
A new revolutionary 2-phase, hybrid, step motor and driver package, which eliminates missed steps, a common problem with stepping motors. The new AlphaStep uses a built-in feedback device that constantly monitors the motor shaft to detect and correct for loss of synchronism. Having the feedback device built in minimizes the size requirements for the motor and helps protect the device from shock loads and temperature extremes. The AlphaStep has very high response since it runs open loop under normal conditions and only runs in closed loop when a position deviation occurs. Easier to use than traditional servo systems the AlphaStep requires no gain tuning. Also, there is no hunting (the "jitter" that servo motors sometimes exhibit when trying to hold a position). The AlphaStep driver uses microstep control (up to 10,000 steps per revolution) to provide smooth, low-speed operation. - Press release from Oriental Motor.
The manufactures are here...
http://www.orientalmotor.com/products/stp/stp_astep.htm
Has any one had any first hand experience with these ?
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