Re: Bridgeport retrofit servo questions

> braidmeister wrote:
>
> >Luke,
> >This encoder from US Digital looks like it will do the job: E6S-

> >625-PKG1
> >
> >Here's the breakdown of the part#:
> >E6S - series number
> >2000 - CPR
> >625 - 5/8" shaft
> >PKG1 - includes hex key and spacer tool
> >
> >I like this one over the E3 because it has a nice snap-in

> >on it. Yes, you're paying a little more for it, but I think that
> >since they sell the shielded cable ready to go, it makes life a

> >easier and makes for a cleaner/reliable installation.
> >
> >The price breakdown is this:
> >Base price for E6S = $49.
> >
> >
> >>= 2000 CPR add $8.82 (because it is HiRes)
> >>
> >>
> You can probably save yourself the $8.82 here, and use 1000CPR

> instead. Remember that the Geckos (or Rutexes) will use

> you would get 8000 PPR (pulses/phases per revolution, vs CPR =

> per revolution).
>
> 1000CPR encoders would give you 4000 * 5TPI ballscrews = 20k

> inch, which should be plenty. If you end up doing belt reduction,

> resolution will be even higher.
>
> - Steve