Re: Retrofit bridgeport

The Boss machines never had AC servos. The Boss 6 was stepper
motors. I took them off and got rid of them. I used some low RPM,
high torque (8 pole) AC servos from Glentek. The motors ran about
$580 each with 2500 line encoders. They are a little less than 1 HP.
The motors are actually metric (125 mm, I think). I made adapter
plates from steel to mount them on the NEMA 42 mounting holes of the
machine. I also had to enlarge all the pulley bores to fit the
shafts. I used Allen Bradley 1398 drives from eBay. They were pretty
cheap and work well. I would say I put about $2500 into retrofit
parts for the 3 axis, including cables, new contactors, DIN rail,
knobs, switches, etc. This does not include the PC to run it.

Best Regards,

~petev
--- In CAD_CAM_EDM_DRO@yahoogroups.com, Peter Rosenholm
<treelaw45@...> wrote:

>
> Thanks, I recall having DC servos, now they have AC servos?

How much did it cost in the end, and did you use a Retrofit kit? The
motors and encoders had to be expensive?

>

Peter Rosenholm

>
> vavaroutsos <pete@...> wrote:
> I retrofit my Boss 6. I completely scrapped the original

control and

> wiring. The only thing I re-used was the pneumatic valves, limit
> switches, fuse holder/knife switch, and power cabinet. I modified

the

> power cabinet to mount on the side where the control cabinet was

and

> put the operator console swing arm on it. I also scrapped the
> steppers in favor of AC servos. Looking back, I would do the same
> thing again.
>
> ~petev
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Peter Rosenholm
> <treelaw45@> wrote:
> >
> >
> > Anyone ever retrofit an early Bridgeport Boss 5 to 7, serries 1?
> >
> Peter Rosenholm
> >
> >
> >
> > ---------------------------------
> > Luggage? GPS? Comic books?
> > Check out fitting gifts for grads at Yahoo! Search.
> >
> > [Non-text portions of this message have been removed]
> >
>
>
>
>
>
>
> ---------------------------------
> Park yourself in front of a world of choices in alternative

vehicles.

> Visit the Yahoo! Auto Green Center.
>
> [Non-text portions of this message have been removed]
>