Re: [CAD_CAM_EDM_DRO] Re: Bridgeport Series I verse Series II CNC Refit Candidates

Les Newell wrote:

>Those are the manual machines (apart from the EZ trak which was a beast
>on it's own). The CNCs are very different. The Series 1 CNC is based on
>the manual machines with a special rigid ram, often using 30 series
>quick change tooling. Drive is via a varispeed belt from a 3 phase motor.
> The Series 2 CNC is an altogether bigger beast and AFAIK there isn't a
>manual equivalent. They usually take ISO 40 tooling with a pneumatic
>drawbar.
>

Sure. The basic frame, including the knee is the same on Series-II manual
and BOSS. The saddle and table are different, giving wider saddle support
to a shorter table, with a non-rotating X screw, just as on the Series-I
BOSS.
With the huge control cabinet on the back, and the extra panels mounted to
the head, and many had a fiberglass shroud around the head, the machines
DO look a lot different. but, up to the knee, the base is the same.

Jon