Re: Interact stepper ball screw reduction ratios

I've got a Series I cnc, BOSS 5 I think. It does have the big
steppers on it. My manual also states 1:1 ratio, although I haven't
gotten into the machine to verify. I do hope mine is at 2:1 also. I
was concerned with this as I have some ~700 oz/in max servos that I
was hoping to install. I figured I would need at least a 2:1 ratio
if not 4:1. Good luck with your retrofit. Please keep us updated.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Raymond Heckert" <jnr@a...>
wrote:

> I've got a SERIES I, and it's a 1:1 ratio. Do you have the big

SIGMA or

> SUPERIOR size 42 stepper motors? Where are you located?
>
> RayHex
>
> ----------
> > From: bazer_20002000 <cncfred@b...>
> >
> > Im rebuilding a Series 1, Boss 3 BP fitted with stepper motors.
> > Currently the belt drive ratio for all axis is 2:1 (stepper:ball
> > screw) but the BP manual states the ratio should be is 1:1. I

would

> > be interested in finding out what ratios others have on their CNC
> > BPs and is the BP manuals suggestion of 1:1 is wrong?