Re: Automatic or easier tool changes for R8 mills ?

I'll defenatly be picking one of these up. How long is the whole
unit from the tip of the nut that secures it to the end of the tool
holder? Thanks!

Mark



--- In CAD_CAM_EDM_DRO@yahoogroups.com, "cncgrumpyguy"
<wtsmith@c...> wrote:

> Mark,
> I am mounting the Sears Connector(Collet Holder)on a 1/2 "
> shaft installed in a 1/2 R8 Collet.The Adaptors(collets)
> are machined from steel and are tapered.A slot is machined into

the

> collet to lock it in place via 3 spring loaded balls located in

the

> collet holder. 2 Protuding pins in the collet engage slots in the
> holder to index the system.Collets are removed by pressing up &
> rotating a ring built into the Holder body (about 5-10 degrees).
> This action locks the holder body open to accept the next collet.
> Sounds complicated but the learning curve is short.
> When I get the time I'll check runout & let you know the results!
> So far I'm amazed at the cost of this system! Collet Holder & 10
> Collets for $50.
>
>
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "mmurray701"

<gmurray@n...>

> wrote:
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "cncgrumpyguy"
> > <wtsmith@c...> wrote:
> > > I recently purchased Sears' RouterBit Connector/Adaptor Kit
> > > for use on my Bridgeport Mill. Collet selection is limited to

1/4

> > > and 1/2 inch. I can live with the inconvenience since the Kit
> with
> > > 4 collets lists at $29.95 & collets(Router Bit adaptors) are 3
> for
> > > $9.95. The system utilizes Ball lock retainers similar to Royal
> > > and collets have 2 retaining ears.It's not heavy duty stuff but
> > > most router work isn't.
> >
> >
> >
> > Wow this is certainly interesting for light work. Gotta love

that

> > price considering most quick-change adapters are like $500 not

to

> > mention the price of tool holders. You guys may already know

but,

> > MSC sells a Quick change R8 adapter that takes 30 taper tool
> holders
> > and fits the R8 taper. Its made my Erikson and is permenatlyly
> held
> > in place by the regular drawbar, just like any R8 collet, and

you

> > just swap different 30 taper holders into in. Uses up 2" of room
> > though.
> >
> >
> > Back to this Sears thing, I found a picture of it on the sears
> > website but I cant determind everything from the pic. Heres the
> pic:
> >
> >

http://content.sears.com/data/product_images/009/26691/00926691000-

> > dlv.jpg
> >
> > So do the end with the nut attach it to the spindle? What size

is

> > the hole? 1/2"? How exactly are the tool holders held? This

thing

> > would probably be great for me on a mini mill. Have you measured
> > runout on it? Please advise! Thanks.
> >
> > Mark