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