Re: Linear motion design Q

Hi,

I'm trying to picture in my mind how the bearing and CRS are mounted
and used in ref to each other. Got any pictures or a diagram?
That was my next problem, the Y-Axis. I believe I have my X-Axis
settled as to form and function.

I am working on a moving gantry type of CNC machine.

>
> I have built the gantry beam for a CNC router setup using CRS rails.

The main

> body of the gantry is an aluminum hollow box section (from a

scrapyard, I think

> it is 5" square with 1/16" walls). On each of three faces, I have

mounted

> 2.5x0.25" CRS rails. They bolt to the box section with numerous

bolts. Each of

> these rails has three roller bearings running on it (two on one

side, one on the

> other), and each only provides positioning in one plane. So if the

CRS flexes

> across its thin dimension it doesn't matter, and the thick dimension

is both

> intrinsically stiff, and also further stiffened by being bolted to

the box

> section.
>
>