Re: moving table engraver

Check out drill rod an Enco, a 3 ft section, 1 inch dia is less than
$20.00, hard finish, not hardened.

Tolerances are off from precison rod, I got some that was a thou over
and would not fit pillow block bearings. : (

other than that, your idea is sound. just include some way to adjust
the tension.

Dave




--- In CAD_CAM_EDM_DRO@yahoogroups.com, "andrewyslee"
<andrewlee@s...> wrote:

> Hi,
>
> Been putting off making of a fixed bridge-moving table
> engraver/router of acceptable precision (for engraving). Been

looking

> a the hardware shop for some supporting/guide rods and found some
> 16mm round steel bar. They look reasonably round. Wondering if I

can

> use them for the 2 support/guide rods for the x-axis moving table

for

> a movement of 24 inches which means the rod will have to be 48

inches

> long.
>
> Will they be sufficiently round and straight for the purpose that I
> have mentioned (for engraving, not precision metal working). If so,
> will two milled holes of very slightly bigger diameter in delrin
> serve sufficently as support bearing for the x-axis moving table? I
> have access to desktop cnc lathe and mill.
>
> Thanks for any input.
>
> Andrew