Re: [CAD_CAM_EDM_DRO] size of leadscrew question

On Tue Mar 12 09:35:12 2002, John Thompson, <rcav8r@...> wrote:

>
>I'm wondering what size of leadscrew to use for the X axis on my planned
>router table. I was going to use a 3/4", 5tpi (single start) Acme
>leadscrew, but am having trouble finding wear compensating/ anti
>backlash nuts by themselves to fit this size.
>
>The table I have in mind will have a 48" cutting length X axis, so
>figure 5 to 6' long. Could I substitute a 1/2" leadscrew with 10tpi and
>2 starts?
>
>Since the gantry will ride on 3/4" shafts on either side to take the
>load, and the anticipated speed wont be more than 40-50 ipm (small, 2-d
>parts), would the 1/2 leadscrew be OK? will it be strong enough?

I think this is one of those areas where bigger really is better.

Bill

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