RE: [CAD_CAM_EDM_DRO] Sherline quik-change drill chuck was Re: DON'T WORRY, I THINK

Actually the Sherline endmill holder is 3/8" but can easily be bored out to
1/2", I have bored and reamed several of these and they work well.

John Guenther
Sterling, Virginia

> -----Original Message-----
> From: ballendo [mailto:ballendo@...]
> Sent: Friday, February 22, 2002 10:21 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Sherline quik-change drill chuck was Re:
> DON'T WORRY, I THINK
>
>
> Randy,
>
> One pretty simple way is to use the 1/2" endmill holder Sherline
> sells. Make 3/8-24 threads (to match the chuck) from a short piece of
> 1/2" drill rod. Mill a "weldon" flat. (brand name for the flat on
> endmills) Now you can use the chuck the same as endmills (either
> removing it from the holder; OR screwing the holder on and off the
> spindle. (since the chuck has a flat back, it will register the same
> as it is inserted/removed. However, it will probably require more
> clearance to remove this way, compared to unscrewing the entire assy.
>
> Hope this helps.
>
> Ballendo
>
> --- In CAD_CAM_EDM_DRO@y..., Randy Gordon-Gilmore <zephyrus@r...>
> wrote:
> > At 12:09 AM 2/22/02 EST, Mom wrote:
> >
> > >If you are asking how to bid in a home business then it is not for
> this
> > list.
> >
> > Oh no, sir, I won't be a machining wh*re, strictly my own output!
> >
> > I'm a brain wh*re now--that's why I'm building up my own equipment
> to be my
> > own "boss"...
> >
> > (And I know what is said about being my own boss--I'd be "better
> off"
> > keeping a salary.)
> >
> > :-)
> >
> > On-topic input--I've finally finished a set of 5 endmill holders
> (rough
> > drilled, bored on the mill spindle using a lathe bit clamped in the
> > machining vise, then finish-reamed,) so I can keep some tools
> chucked up
> > and length dialed in with CNC Pro. They screw onto the spindle and
> against
> > a hard stop. Now I'm trying to figure out a way to mount the drill
> chuck
> > and boring head to the spindle threads, rather than the Morse
> taper, so
> > they will also be repeatable lengthwise.
> >
> > The last thing I need/want to do with the CNC Sherline is buy some
> Moglice
> > and cast some near-zero leadscrew nuts. The majority use of my
> mill will
> > be surfacing from solid models, and from the talk around the list,
> > "backlash compensation" in software is not acceptable when doing
> > surfacing...
> >
> > Randy
> >
> > Randy Gordon-Gilmore ,----.___________ ______________
> _________________
> > ProtoTrains // = = === == || == == == = || == == ==
> = == =|
> > Rio Vista, CA, USA /-O==O------------o==o------------o==o----------
> -o==o-'
> > zephyrus@r... http://www.rickadee.net/~zephyrus
>
>
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