Re: [CAD_CAM_EDM_DRO] Yet more DRO

>
>
>
> "D.F.S." wrote:
>
> > > Renishaw are also marketing a flexible steel scale. Using a
> > quadrature read
> > > head, a 10 micron resolution is also possible.
> > >
> > > I'm trying to get a sample of Newall's tape to play around with - if
> > I can get
> > > the time at work. It should be possible to achive a higher
> > resolution by using
> > > multiple sensors...
> >
> > Getting a bit picky aren't we?
> >
> > I'll settle for the 10 microns, back when I was a kid We used a
> > yardstick...
> >
>
> For a DRO, this should be FINE. For a CNC, however, more resolution
> might be nice.
> I have resolution of .00005" (~ .00127mm, or 1.27 uM) on my CNC X and Y
> axes right now, and it
> is just about enough to get smooth circles interpolated. I DEFINITELY
> would not want
> to go any lower than that.
>
> Jon

That was a joke, or at least 1/2 joke 1/2 irony.

It just find it funny we went from 360 line/inch plastic scales all the
way up to 10 microns and THAT was still not good enough for some people.
You want nothing less than 50 millionths someone else thinks 1/1000 of
that is good enough.

Please don't take that wrong.
You have a perfectly legitimate reason it's not.
I just find the standards of what is acceptable here funny.

Marc