re:Re: Stepper motors and increased Amps

Roman wrote:

>I am using surplus Sanyo Denki 5.1v 1.0A size 23 (2 stack motors
>which are 2" long) in my home mini mill,<snip>

Roman,

If the motors are 2" to 2.5" long, they would properly called SINGLE
stack. BTW, these 5v,1A 23 SS surplus motors are 'everywhere'. They
are usually rated around 60 oz. in. If you're paying more than about
5 bucks, you should keep looking, IMO.

And there are LOTS of better motors for a minimill(sherline, taig,
maxnc, etc) type project available nowadays. You'll pay more, but it
WILL be worth it, IMO.

Hope this helps.

Ballendo

P.S. I'm in the "gear it" for resolution, "microstep it" for
decreased resonance camp... At least for the typical CNC machine,
which has WIDELY variable speeds/ loads. I've known about torque
compensating for some time... Microstepping is EXCELLENT for steady,
predictable loads, IF the drive and motor are 'matched'. NEAT (New
England Affiliated Technologies) publishes some good info re:
microstepping.