Re: Bridgeport BOSS conversion

Thanks for the reply,

How do you feel it works not having encoders? I really like my
current system with servos and the feedback from the encoders.
Perhaps I am a bit spoiled. But I have not ran anything with
steppers so I really do not know. I guess if everything is working
good it should not be a problem with missed steps.

Thanks and happy holidays to you.

Gary

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "washcomp" <jeff@w...> wrote:
> I'm using API CMD-260 drives (similar to the Gecko's). My
> Bridgeport steppers were Sigma (rather than Superior) and it runs
a
> heck of a lot faster than 30 ips at 72 volts DC. Mine are direct
> connected to the ball screw (maybe that makes a difference). I
was
> able to canabalize the NC controller power supply for the
> transformer, caps and bridge to change the voltage.
>
> Merry Xmas,
> Jeff
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "onecooltoolfool"
> <joevicar3@i...> wrote:
> > Yes it works up to about 15 ipm to 30 ipm depending on wether
your
> > bridgeport has 2:1 or 1:1 belt reduction, at 80VDC.
> > I used 1 phase of the original 3 phase transformer to make a
> workable
> > 80 V supply.
> > Mariss will tell you that the gecko is not designed to work well
> with
> > the old 42 size motors on those bridgeports (has to do with
> > impedance.) This may have changed as I ran this setup over 2
> years
> > ago. Now using 320's.