Re: Belts and Pulleys

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "robsarten" <robs@p...> wrote:

> Hi All,
>
> I'm in the process of CNC'ing a ZX7045 mill and just needing a little
> help in working out the pulleys to use for the Z axis.
>
> Have changed to 3/4" .2 ball screws on all axis.
>
> Driving X and Y using servos with a 3:1 ratio.
>
> Have a 1200 oz/in stepper for the Z axis.
>
> What would be a suitable ratio and pulleys "L XL HTD GT2" to use on

the

> Z axis?
>
> Thanks, Rob

On a well balanced Mill all Axes have to hold against the cutting force.
To me it makes sense that this force should be equal.
If the "L" 3/4" belt with .2 ballscrew works well for X and Y it
should also work well for Z Axes.
Unless the transmission ratio or motor torque is different use the same.
Good Luck