Re: Re: What do we want?

Andrew,

I actually did put wire brushes on the lead screws just in front of the
nuts. It helps but is not a complete solution. Wood dust seems to be
much more of a problem than metal swarf. Who would have guessed that?

Clint Bach

Andrew Werby wrote:

>
> From: Andrew Werby <drewid@...>
>
>
> [I've been puzzling over this problem myself. One alternative that occured
> to me was to install brushes on the ends of the sliders which would sweep
> off the screws and surfaces as the machine moved, but this wouldn't be
> effective if lubricant was present. I heard Shopbot, which originally used
> a cable drive, has discarded it in their later models in favor of a
> roller-chain and sprocket drive system. I was considering this myself, for
> the router I'm assembling from scratch. Has anybody tried it on any of
> their machines? It would seem to be more dust-resistant and robust than
> most alternatives, but I'm not sure about tolerances and backlash issues. I
> did notice that a roller-chain is used to drive the ball-screws in my old
> CNC mill, so in short lengths, at least, it's probably not too bad.]
>
> Andrew Werby
>
> Andrew Werby - United Artworks
> Sculpture, Jewelry, and Other Art Stuff
> http://unitedartworks.com