RE: [CAD_CAM_EDM_DRO] HELP: Bipolar stepper ciruit

Al,

Pretty straight forward and many ways to do it. One solution that comes
to mind is to get a E-labs http://www.elabinc.com/ EDE-1204 bipolar
stepper drive chip. It is a custom programmed PIC chip that includes a
step generator or can be driven by an external step generator. It
outputs the proper phase signals to drive a L298 bridge. There are also
a number of step generator circuits in the files section of this group
that will directly drive a step and direction driver ( www.xylotex.com
now has a low cost single axis stepper board ).

Hope this helps. It is a little off topic for the group, but the concept
is identical to making a non-computer driven power feed which is very on
topic. So if we just talk about driving your machine without a computer
we can sneak this by Bill <g>. Actually there was a thread on this about
a week ago if you search the archives.

Tim
[Denver, CO]
Sherline products at Deep Discount
Mach1 & DeskCNC with credit card ordering
www.KTMarketing.com/Sherline

> -----Original Message-----
>
> Happy new year to all.
> I'm looking for a cuircuit to run a small bipolar stepper.
> I need a hand held controller as its for a telescope, all
> the circuits I've seen are computer controlled and I have no way of
> draging my p.c/monitor out side :)
> Hope someone can help. The makers controller runs of 6Volts
> batteries. Thank you. al
>
>
>
> Addresses:
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