Re: [CAD_CAM_EDM_DRO] Machine mounted Tachometer with Surface Meter Per minuteThis

If you drill a small hole through the centre of the back of the rear cap,
maybe 1/4in, you'll find that the shaft has been centre drilled for
manufacture. With a small bracket, thrust bearing and a pointed little
shaft, you can press against it. You have now simply extended the shaft out
the rear, and you can attach a plastic disc or whatever onto it to pickup
the speed.

Obviously remove the cap first to see if there are any wires there.

Roland

On 12 September 2010 07:34, David G. LeVine <dlevine@...> wrote:

>
>
> On 09/11/2010 11:52 PM, Jon Elson wrote:
> > Gaston Gagnon wrote:
> >
> >> Ooops! I confused things here. Some of these sensors (ATS616LSG) are
> >> spec as max Operating freq of 10 kHz and others (ATS667LSG) as Operating
> >> Speed of 12000 rpm.
> >>
> >>
> > Yes, that 12000 RPM spec is with their 40-tooth reference gear, I think.
> >
> > Jon
> >
>
> 12,000 * 40 is 480,000 PPM / 60 min/sec is 8,000 Hz. 8,000 * 60 / 6 is
> 80,000 RPM...
>
>
>


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