Re: [CAD_CAM_EDM_DRO] Question? UCN5804

Hi Ray, K0,

I've seen Ramsey's kits. It's a single axis, low power driver chip.
Something to learn with, but not to drive a stepper of any useful size.
It might be possible to modify it for step/dir, but not easily. Has a
555 or something similar to generate pulses. A fair learning kit. I
was going to suggest it (for learning).

Alan KM6VV


Raymond Heckert wrote:

>
> I'm looking at a catalog from RAMSEY (800-446-2295)
> http://www.ramseykits.com Description is Stepper Motor Driver Kit,
> Order # SMD1, and price is $29.95. I don't know how much you'll actually
> 'learn', but the price sounds interesting. It sounds like two axis, 'cause
> it says you can build it for an X-Y controller. But it may only be one
> axis. H-m-m-m-m, I've been looking for a way to power my S.B. lathe
> tailstock...
>
> RayHex
>
> ----------
> > From: k00lmon <k00lmon@...>
> >
> > I'm trying to learn how to operate a stepper motor by making my own
> > circuit. I have read through "The Robot Builder's Bonanza" by Gordon
> > McComb and found a circuit utilizing a UCN5804 IC to control a
> > stepper motor. What I don't understand is that the circuit has
> > resistor components that were indicated as 2 to 5 watts at 1K! Where
> > do I find 2 watts resistors? Is it easier for me to learn how to
> > control a stepper motor by just buying a kit? Are there any kits out
> > there that teaches u the basics of controlling stepper motors that
> > anyone could recommend? Thanks for reading.