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

Hi
I have a Series 1 and all I did was get rid of the old
electronics and install new electronics. Turn it ON and learn to use
it.
The Series 2 has a larger table and is heavier....cost more new...but
apart from these differences the two models are much the same
Hope this helps
AllanQuoting Jon Elson <elson@...>:

> jacoby01 wrote:
>
> >I'm looking at both a Bridgeport Series I and a Series II 3-axis CNC
> >machines as candidates for refitting with most probably Mach2 software
> >and Gecko servo drivers.
> >
> >The Series I machine looks very similar to those that Roland Friestad
> >has featured in the Home Shop Machinist series - except the electronic
> >display is enclosed in a fiberglass housing and mounted on the front of
> >the head.
> >
> >The Series II machine, again it is already a 3-axis CNC machine -
> >original from the factory, but with "roached" electronics - looks like
> >a normal Series II, but with one major exception - it has dual heads
> >and the heads are mounted on a vertical T-slot table. This particular
> >machine looks like it was set up for production, before the days of
> >automatic tool changers (the machine is approximately 1980 vintage).
> >I've got a picture of this machine, but can't figure out how to post it.
> >
> >Now the question: Any thoughts on which of these two machines is a
> >better candidate for conversion? The Series II is actually cheaper and
> >looks to be more machine for the money. But, I'm afraid that I don't
> >know enough about converting Bridgeports and I don't want to later find
> >out that, "Nobody refits the Series II machines because ...!"
> >
> >
> If you have the room, and the condition of the ways and ballscrews are
> similar,
> then go for the big one. The X travel on the series I BOSS machines is
> quite
> a bit shorter than on the manual machines, about 18". If either machine has
> badly worn ways, I would advise against that one. You have to consider the
> work you are likely to do, though. You may never plan to work on pieces
> bigger than a 6" cube, so maybe the smaller is just a better fit to your
> work. if you plan to make large panels, then maybe the larger is very much
> in order. Also, the Series II has a much beefier spindle and more powerful
> motor (except that some Series-II bases with multiple spindles use Series-I
> heads. So, check if the head is a 2J or 3J.)
>
> >
> >
> There is no reason one would choose one over the other related to the
> "retrofit-
> ability." Many people don't have the floor space, or the ceiling
> height, or the
> lifting capacity for the Series-II. I think that's the main reason the
> Series-I is
> more popular for the home shop. I wish *I* had the headroom for a
> Series-II,
> myself.
>
> Jon
>
>
>
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