Re: [CAD_CAM_EDM_DRO] Re: DRO: USDigital new resolutions 250cpi x 4

stevenson_engineers wrote:

>
> --- In CAD_CAM_EDM_DRO@y..., Russell Shaw <rjshaw@i...> wrote:
> > Yes, it sounds wonderful :), but would i need it? Is it
> > for cutting extra hard material, or for polishing, or
> > just because i can?
> >
>
> Yes because on a lathe everything is times by two so a 0.0005"
> resolution will get you 0.001" on diameter.
> This is why some of the cheaper systems that say they read to 0.002"
> or 0.001" are not suitable for a lathe because in practice they are
> 0.004 or 0.002" on diameter.
>
> John S.

Aha, i wasn't thinking of lathes or making accurate friction-fit
holes for bearing races. The latter could be useful to me. Therefore,
i'll try for the highest resolution i can get;)

> > studleylee wrote:
> > >
> > > Hi Russel,
> > > You can use a decoder for the quadrature output of the module that
> > > can give you a count per transition which multiplies the
> >resolution
> > > by 4. Thats where the .002/4 = .0005 comes from.
> > >
> > > I agree .0005 would be wonderful :-)