re:Re: OOPS! Need bigger steppers

Wally,

Good advice, generally. My $.02

Speed is not the only thing to consider. You need to look at the
AVAILABLE torque AT the SPEEDS you INTEND USING to cut.

I'd rather have less top speed and a wider range of speeds with
SUFFICIENT torque, than high top speed and a narrow band of "cutting"
speeds (due to torque). Assuming I'm cutting a VARIETY of materials.
Else I'd just optimise for the torque/speed suiting the material, and
try for as much "rapid" as possible!

Hope this helps.

Ballendo

P.S. When I'm stepping slowly, a higher inductance coil is still
being "fully" driven. Like I said, it's decent advice, but to borrow
from Gandhi "There is more to life than increasing its' speed".

>Hi Gary, truth be told the fact is you should be looking for motors
>with the lowest voltage you can find. Simply put these motors will
>have the lowest inductance which means you will get the highest
>speed. Also look at the oz-in rating of the motor more torque means
>more turning power.

>The combination of lowest motor voltage and highest power supply
>voltage will give you the maximun speed. Your motor will not burn
>out because the drive is a chopper drive and it never lets the
>current go above 2 amps.
>Wally K.