Re:Re: CNC'ing a Mini Mill MT vs R5/R8 collet

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Fred Smith" <imserv@v...>
wrote:

> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Kim Lux <lux@d...> wrote:
> > Comments below... I don't mean to offend anyone. I maybe have a
> > different prospective than most. I'll share anyway.
>
> Another point that I have a concern with is that some of the small
> mills have only a morse taper spindle. A morse taper is designed

for

> drilling and has no drawbar to hold it into the spindle. Vibration
> is one way to work it loose, and milling with a morse taper will
> usually cause vibration.
>
> My concern is that the tool holders will work loose when milling is
> attempted. Do these machines have a modified morse taper that uses

a

> drawbar?
>
> An R-8 (as used in bridgeports), while not as strong as some tool
> systems seems to be a much safer setup for milling on a small

machine.

>
> Fred Smith - IMService

Drill presses use a tang on the back of the Morse Taper (MT) and
lathes in the talistock.

in the headstock, one often uses a MT WITH drawbar, and if you use a
mill with a MT, you most often use the drawbar.

There are a lot of guys who like the MT better than collets as it
allows many tools to be used in multiple machines.

I think LMS has them and I know Grizzley has them.

http://www.grizzly.com/
Part # G9536
MT #2 End Mill Holder - Size: 3/16", Drawbar: 3/8" x 16 TPI

Dave