On Tuesday 12 February 2008, Ian W. Wright wrote:
> >>>>>>>>>>>>>>>>>>On Monday 11 February 2008, Ian W. Wright wrote:
>> >
>> >For those who were fascinated by the polygon turning have a look at this
>> >- http://tinyurl.com/2wqbvl , it achieves the same ends but without any
>> >extra power or synchronisation of spindle and cutter! The video even
>> >gives a good indication of how you can make your own!!!
>> >Usual disclaimer - no connection with company etc. etc.
>
>Gene Heskett wrote:
>
>Now that's cute Ian. But the forces would seem to preclude my trying it on
> my little toy lathe.>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>
>Hi Gene,
>
>I'm not sure that the cutting forces would be very great at all. If you look
> closely at the tools you will see that the front face is dished in creating
> a cutting edge around the front of the tool. So, coupled with the 1 degree
> clearance angle of the tool axis and the tool being smaller than the hole
> its cutting for internal splines etc., the cutting action is that of a
> knife. It would appear that the whole secret of this is in producing the
> tools with this sharp cutting edge at the front and then choosing one with
> an appropriate shape and relative size to the work. I think its a bit like
> the old 'Spirograph' toy....
Interesting for sure Ian, but I was born just north of Missouri and I think
I'd have to see it done on simpler machinery than that was. :)
--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
I don't deserve this award, but I have arthritis and I don't deserve that
either.
-- Jack Benny
-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
