Re: [CAD_CAM_EDM_DRO] Re: Series II big stepper details and step mode

cnc4me@... wrote:

> I was suprised to read the bridgeport series I and II used steppers.

Series I and Series II refer to the iron, mostly, and can be manual,
tape-NC, CNC
or hydraulic tracer. Boss 3-6 (I think) are stepper units, 7 and 8 are
servo.
After that, they went to the EZ-Path name, with servos and internal PC
control.

> A friend of mine has both machines and he thought they were servos.
> He has the orignal bridgport configuration i think.
>
> He also told me his X axis motor on the series II runs hot and goes
> out every year or so.
>
> Does anyone know what stepper switching mode is used in these mills.
> Like full, half step, or microstep.

Boss 3-6 used full step, I'm pretty sure.

Jon