[CAD_CAM_EDM_DRO] single axis control

I did build a Sim card handling machine incorporating a stepper. Controlled
by an 18F series Pic. I simply stepped the stepper at a speed that it could
start and stop at without overshoot or lost steps. If speed is not an
issue, this would be the simplest. The worst part is the code overhead to
make all the parameters configurable via RS232.

But steppers sound tricky in your app unless you have high gearing or
encoders, as you'll never know if you lost steps through bumping on the
stop. You might have to 'home' between every operation.

Regards
Roland

On 23 October 2012 16:45, scyvt <scy@...> wrote:

> **
>
>
> Hello group
>
> I have 2 applications for single axis stepper control: one moving a
> cut-off stop, and the other moving a table holding a part being drilled,
> both in pre-determined increments, and with the need to store programs for
> numerous parts. Although either Mach or EMC could do this, it seems like
> cutting butter with a chainsaw. However, there doesn't seem to be much in
> the way of single axis controllers on the market, and I don't have the
> knowledge to brew up one with a microcontroller. Perhaps this could be an
> application for a PLC, but there seems to be a learning curve to program
> one (not G-code). Any suggestions?
>
> TIA
>
> Steve
>
>
>


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