Re: [CAD_CAM_EDM_DRO] Re: removing encoders from motor shaft

If you have a regular size mill, otherwise use a drill press:
Slide two plates under the bushing, one from each side and rest the plates on the wise or extra blocks. The encoder body now
hangs under the plates between the jaws or blocks.

Then put a dowel in the chuck and use it as a miniature arbor press to push out the shaft. That will allow you to gradually
increase the force in a controller manner.
Bertho Boman
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> From: "Terry May" <tmay@...>
>
> Joe,
> I think you have the right idea, I'm going to try the same thing I
> believe. I'll probably make two and try to squeeze them together with
> a clamp or press and maybe keep from bending anything, hope it works.
> Terry
>
> --- In CAD_CAM_EDM_DRO@onelist.com, Joe Vicars <jvicars@c...> wrote:
> > I have the same problem Terry described removing delicate glass
> > encoder wheels from old plotter servo motors. I successfully
> removed
> > one that was already broken by gently prying it off with a little
> > stanley nail puller. It takes a little pressure to break the
> RTV-type
> > adhesive, but once you get it going it comes off smooth. It is very
> > dicey however, the encoders on the ones I have are only .007"
> thick. I
> > think there is a better way.
> > I am going to make a wedge type tool to remove the other
> encoders,
> > like a Jacobs taper chuck key. Looks like a little horseshoe with
> > shallow ramps on both sides.
> > Good luck.