Re: Minimill spindle

There are a couple of air spindle jig grinders that might fit you needs, we have one at work that can be put on a milling maching
or into the tool holder of a lathe, nice little tool. its about 3'' in dia and 3" long with 3/4 arbor about 2" long to mount it
with. Comes with a filter, regulator, oiler setup and runs at 60k rpm, will tap 1/4 or smaller tools
take a look at the following url http://www.wwid.com/products/nsk/ultra_precision_high_speed.htm

Brett Gober wrote:

> From: "Brett Gober" <bgober@...>
>
> I am researching a minimill setup for machining detailed plastic injection
> dies in aluminum or magnesium. I have found answers to most of my questions,
> but I'm stumped when it comes to spindles. I'm looking at a system from
> Model Master http://www.modelmaster.com/products/a2p.html but I would like
> to find some options for the supplied spindle. The air spindle pictured on
> their web site is no longer offered. I'm told that the spindle supplied is
> made by them (???) and is powered by a flexshaft motor. The motor doesn't
> seem to be so important but I would think that something as important as the
> spindle would be better to be purchased from a company that specializes in
> precise spindles. I was told that their option for a high speed air spindle
> is $2700. Sounds high, but I really don't know anything about what spindles
> go for. Sooo my question for the group is where can I go to learn about
> spindles that would replace the stock spindle on this machine. What makes a
> spindle good or bad? I would like it to be highly accurate and high speed
> with a 1/8" collet. I don't think I care if it is motor driven or air. I
> think the mounting hole for it is 1". Any info on small spindles is greatly
> appreciated as I am totally ignorant on this subject.
>
> Brett
>
> ------------------------------------------------------------------------
> ONElist: where real people with real interests get connected.
> http://www.onelist.com
> Join a new list today!
> ------------------------------------------------------------------------
> welcome to CAD/CAM/EDM/DRO@..., an unmodulated list for the discussion of shop built systems in the above catagories.

--
---------------------------------------------------------------------

James P Crombie
Summerside PEI Canada

http://www3.pei.sympatico.ca/jpcrombie/ My Astronomy stuff
http://www3.pei.sympatico.ca/jpcrombie/RHINOFILES/ RhinoCad 3D Stuff

---------------------------------------------------------------------