Re: [CAD_CAM_EDM_DRO] Re: sourcing motion control parts - steel vs aluminum

The steel is what I was trying to avoid, I am a welder and have access
to everything I need to do it that way, what I don't like is the way
metal warps and bends when welded. And I really hate how the metal
comes off the truck brand new and is all warped and bent. (forklift
operator wanted to get home and drink beer) I want to build a 4'x4'
router table and it seems that ALL of the framing has to be perfect
with no variation at all. If there is .005" warp in one of the axis's
then all of your work will have either a .005" high or low spot in the
middle of it. I would like to have the T-Slot aluminum cut to length
and the ends machined square so assembly can be as good as it can be.
Thanks to all who offered input on costs, I am checking these places
out.

> --- In CAD_CAM_EDM_DRO@yahoogroups.com, R Rogers <rogersmach@y...>
> wrote:
> > Considering the cost and compromise in strength, I would opt for
> some steel square tube and a buddy with a welder. The aluminum
> extrusions do look nice though and probably ample for a small gantry
> router.
> > Ron
> >
>
> I ran thru this when I designed a router table.
>
> The small table top units are about equal with a lot less finish time
>
> for the 80/20
>
> When you get into a 4x8ft table and need 20 pieces 4 foot long at $12
>
> a foot, you see a 4 digit price very quickly.
>
> Dave

=====
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http://map.findu.com/FIELDR



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