Re: Re: Re: GeckoDrives.. Can anyone Help?

Ray,

The FROG threading/feeding attachment for the taig and sherline
lathes may use this technique. It is a single stepper, a magnet
(spindle mounted), and a switch. The controller is like Sherlines
rotary table controller, only as little rougher looking.

Reports from the field have been positive. I read on one of the
groups I visit that the thing "needs a second or two to 'lock on' to
the spindle speed..."

URL is: http://www.miclog/frog

Hope this helps.

Ballendo

>The authors built a small board to sit near the encoder and create a
>velocity signal from the pulse train. Do you know of any systems
>using this approach?
> Ray