Re: [CAD_CAM_EDM_DRO] Re: What makes a machine CNC ready?

On Tue, 27 Jun 2006 21:19:26 -0000, you wrote:

>What is highly exaggerated by the uninformed, is the utility of
>rolled ballscrews compared to precision acme screws. "What does
>that crunching sound mean?"

What crunching sound is that? You must buy really nasty screws or have
them badly misaligned if you hear that.

I've been using rolled ballscrews with adjustable backlash nuts, not
noisy at all and far better tolerance than is needed at 0.052um/300mm.

I've seen Kerks "advertised" figures of .0001mm/mm. Does that equate to
0.03mm/300mm ??? They seem not to use the same tolerance figures as
ballscrew manufacturers?

I've yet to see a price for say 1m of 16mm dia 2mm pitch Kerk screw, so
couldn't say if they are a good deal or not.

Unfortunately over here in the UK they are distributed by Huco,
therefore they are most likely to be very expensive ;)

Steve Blackmore
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