Re: Machine geometry

On Sun, 13 Jun 1999 09:55:01 -0500, "Robert Campbell"
<rcamp@...-dfw.com> wrote:

<debriefing snipped; thanks, most helpful to have these comparisons>

>After I build my new 2 by 2 fixed bridge system, I will retrofit my 4 by 4
>with THK rails and bearings on the X and Y.

OK, so sounds like you're expecting that with stiffer/tighter rails,
you'll be back to where you expected to be, in terms of "slop"? Sounds
good to me. I'm always kinda wondering, altho I have attempted to be as
massively stiff as possible (no, not me personally, the table :), what
I'll end up with as far as repeatability. I don't really HAVE any reason
to strain, given my interest in routing foam, thin alum sheet, and
Rayite, but ya know how it goes; everyone wants to see and continually
sanity check how closely their expectations are likely to match actual
results.

Thanks for the input. I tell people I'm building my own "four-by-four",
but it's gonna run on rails, so they needn't worry; I won't get too far
nor do too much damage. B)

Gar