Re:Low cost 6A stepper drivers on eBay

>The gecko microsteppers are about 5 times the price of these basic
>drivers. While I accept that "you get what you pay for" surely these
>are not complete junk? I thought the resonance issues only happened
>at certain speeds (or load/speed combinations?). If this is the
>case, would it be a practical approach to go with these and work
>around the resonance issues by adjusting feed/speed until I can
>afford the upgrade to the microsteppers?

With these cheap dirivers you will get less than 10% of the motors ability
applied to your work. So to save a few bucks on the driver you waste all of
the moeny you spent on the motors.

At the prices of decent, microstepping, PWM type drivers doing a unipolar
(LR) drive today is foolish. gecko, xylotx or pmdx all make much better
drivers.

ron ginger