Re: [CAD_CAM_EDM_DRO] Shafting

Gene wrote:

>Im thinking of using 1.250 shafts to span 6' and 1.00 to span 48" on a
>cnc router. I am wondering if that's big enough or if I should go
>bigger? any thoughts would be appreciated. thank you.
>
>

Those are unsupported shafts? I think you'll have a good deal of sag in
those 6' spans, even
without the weight of the carriage, router, etc. With the router and
carriage, it will really be
bad. Will this have the 6' axis on the base, and the 4' axis rides on
that? I think you might need
to use supported shafts or an I beam for a 6' span. When it is moving,
I'd expect the 6' axis
to wobble and bounce quite a bit, which will make it even worse.

Jon