Re: faster steppers

On 23 Mar, CAD_CAM_EDM_DRO@yahoogroups.com wrote:

>
> OK, that sounds like a good way. Always wanted a tach. One could
> attach a relective stripe and use a photo detector and PIC to figure
> RPM. I need to get around to that (useful on mill too)!

A most useful add-on to my PIC-based tach and something you may want to
add to yours is an output connected to the EStop input on the
controller.

Should the speed go too low, an EStop signal is generated.

Alan


--

Alan Rothenbush | The Spartans do not ask the number of the
Academic Computing Services | enemy, only where they are.
Simon Fraser University |
Burnaby, B.C., Canada | Agix of Sparta