Re: [CAD_CAM_EDM_DRO] Preparing for a Series 1 Retrofit

I don't think I would do that. I always find boring toothed belt pulleys
a bit of a lottery. They seldom have exactly the correct number of teeth
to grip directly in the chuck jaws so you end up having to make a sleeve
to fit around the outside. Any inaccuracy in the sleeve will of course
affect the accuracy of the bore.

To be honest, a few thousandths of an inch error isn't actually going to
make a noticeable difference to the final accuracy of the machine. Screw
inacuracies, flex, servo following error or stepper 'spring' all add far
more error.

Les


Michael Fagan wrote:

> In particular, you could rough out the sleeve, finish the OD, then
> press fit/loctite the sleeve into the original taper lock hub, then
> finish bore the ID in place. This assures concentricity overall, not
> just within the sleeve itself.
>
>
>