Re: [CAD_CAM_EDM_DRO] pulser

Hi Bill,

You are looking how to program a PIC? Try the lists on PIC's. There is
stepper motor code available for PIC's. Then add an L297/298 driver!
Tony has a PIC based stepper driver that might give you some Ideas.

http://www.jeffree.co.uk/DivisionMaster.html

Also, Byran has one that Sherline sells.

http://www.bmumford.com/rotary/index.html

On the cheap, four TIP120's will drive a unipolar stepper motor, which
may be sufficient for your needs. 4 phases are generated by the PIC.

Do searches for "stepper motors", PIC's, robotics, oh yeah, Seattle
Robotics Society has stuff you should check out.

HTTP://www.seattlerobotics.org/

With your CNC background, you should be able apply Gcode to your robot's
moves. My initial robot (see Science '84 mag.) had an 8085 uP, and ran
a 5K BASIC that I extended to include Lturn, Rturn, fwd, and rev
commands. I also added code to drive a pair of stepper motors. Your
robot only needs one stepper?? You get the Idea. Now it can all be
done in a PIC!

HTH

Alan KM6VV
P.S. Love the Dr!


Jumpnkd@... wrote:

>
> I want to build a box that would send pulses to drive one stepper motor at
> 1amp.
> I want to be able to pull and run 4 different maps and have them repeatable
> as well as having manual control.
> This is for a robotics project I am working on. I have a friend at MIT and
> he said you could do that with a PIC I have a good under standing of elect
> and have built many projects but PICs are new to me.
> Much thanks to the help this list has given me on my CNC router, and I
> thought this would be the place to start I hope this is not off topic.
>
> Sincerely,
> Bill white Alexandra, VA.
> "Be who you are and say what you feel, because those who mind don't
> matter,
> and those who matter don't mind." -Dr. Seuss