Re: Bridgeport Series 1 cnc servo conversion

Paul,

1) Figure out the maximum speed you want the machine to move at.

2) Calculate your leadscrew RPM for that speed.

3) Take 80% of your motor's no-load RPM

4) Divide (3) by (2). That will be the correct reduction ratio.

Mariss




--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Paul Harrington" <paul@h...>
wrote:

> I am planning to replace the stepper motors on my Bridgeport Series
> 1 cnc with SEM Servo motors which are rated at 19 lb/in. I have a
> couple of questions:
> Are these motors suitable to use the current 1:1 belt drive which
> the steppers use?
> What drive ratio do the later Series 1 Interacts equipped with
> servos use?
>
> Any help/comments would be appreciated
>
> Regards
>
> Paul Harrington