Re: degrees of freedom Was: Angle Iron Ways

And there goes another two hours of time I could have been using productively...

On 8/18/06, Dennis Schmitz <denschmitz@...> wrote:
> I was reading the description of hand tooling a precision flat and was
> trying to figure out what he meant by "kinematic" since it could be
> lots of different things, and one of my google searches lead here:
>
> http://www.hexel.com/
> http://www.prsco.com/rotopod.html
>
> Call me sheltered, but I've never seen a positioning stage anything
> like this. I've seen these things (which I now know are called
> "stewart platforms" or "hexapods") in optics labs, but never on a
> machine tool. But then again that shouldn't be too surprising because
> I design high performance processors and systems for in my day job
> rather than CNC machines.
>
> What's neat about this one is that there aren't any hydraulic
> cylinders or otherwise complicated mechanical strut actuators, but
> simple fixed length struts. And what look to be very expensive ball
> joint bearings, but I don't think they're really necessary.
>
> Then I looked around some more and found this router. It looks like a
> giant robotic spider took over his shop, but in a cool way. The lead
> screws are enormous.
>
> http://www.foxkid.net/cmm/platform/project-notebook.html
>
> You obviously don't need REALLY need a 6-deg freedom system for a
> router, but it might come in handy if you needed to carve a couple
> dozen wooden indians or something.
>
> On 8/18/06, turbulatordude <dave_mucha@...> wrote:
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "George Taylor, IV"
> > <gtaylor@...> wrote:
> > >
> > > Dave,
> > >
> > > I give up - can't find the file. Which one in the CCED files section??
> > >
> > > Thanks
> > >
> > > George
> >
> >
> > try here.
> >
> > http://lmwatts.com/shop.html
> >
> >
> > I didn't see it in the files section either.
> >
> > Dave
>