Re: Mill retro-fit info available...

Well I must post a correction. The 2/100,000ths wasn't at 500IPM
(althought would be too cool!). I do get both, but not at the same
time... ;-) It was late and I was a little tired. Sorry to spin
people up. My wife says that engineers lie about 3 things... one of
them is the speed and accuracy of their tools!

I started testing at 20ipm and went up from there, started loosing it
at about 100ipm or whenever it exceeded 3" distance between moves.

I don't know which BP you have, but the Discovery 300 VMC I have
(bought it on ebay!) has very wide base -- the back part part is has
supports over about 5 feet part and weighs in at about 5000lbs.

I got hit by the table once during initial set up (encoder wasn't
connected so the servo "ran away", and I was standing in the wrong
spot at the wrong time, normally the drip tray keeps you from getting
too close, but I had it removed at the time) and it litterally threw
me across the room and I'm a "big boy". So there is some power there.

The Discovery 300 is not fully enclosed like it's big brother the 308.

--Scott

--- In CAD_CAM_EDM_DRO@y..., Jon Elson <elson@p...> wrote:
> Matt Shaver wrote:
>
> > scottleatham wrote:
> >
> > > Galil: I'd like to talk with people that use Galil
controllers! I
> > > like the card a lot, I'm getting incredible speed and accuracy
on my
> > > machine, close to 2/100,000ths of an inch at about 500 ipm!
> >
> > This is very impressive! How did you measure it?
> >
>
> 20 u In at 500 IPM, huh! The machine must be made out of filigreed
> silicon carbide to hold that sort of accuracy. If I got 500 IPM on
my
> Bridgeport, it would tip over! Just because the encoders are within
> that tolerance doesn't mean the cutting tool is within that
tolerance
> on the workpiece.
>
> Jon