Re: [CAD_CAM_EDM_DRO] Best source for inexpensive ballscrews?

> I've got picture that probably explain it better than words do, but here
> goes...
>
> Basically, one ballnut is mounted solid to the slide, carriage, table,
> etc. This is done by screwing the ballnut into a box shaped piece of
> steel and then bolting the second ballnut mounted, in a piece of steel,
> to it.
>
> The first ball nut is called the load ballnut because it is attached to
> the load. We bought the "round" ball nuts. Our equipment didn't have
> enough room for square ballnuts. Remember that the acme nut is much,
> much smaller than even a single ballnut, so everything you do will be
> scrunched for space.
>
> The size of steel we used to screw the load ballnut into varied with the
> axis and piece of equipment we were installing it in, but was typically
> CRS, 1" x 1.5" or 1.75" x 4" wide. We drilled and tapped it for the
> ballnut. It attaches to the slide or table with one or two good bolts.
> Nothing very complicated.
>
> The second piece of steel bolts to the first with 2 studs. The studs
> mount in a blind tapped hole either in the load ballnut or the backlash
> ballnut, depending on what fits the axis better. We always orient the
> studs so they are accessible with the machine assembled. Drill holes in
> the mount without the studs to accept the studs.