Re:Bridgeport Boss steppers

> Posted by: "scyvt" scy@... scyvt
> Date: Thu Nov 1, 2012 3:28 pm ((PDT))
>
> Hello group
>
> In searching the archives for advise on updating the controls on a Bridgeport Boss CNC mill, I found differing opinions regarding the usefulness of the original stepper motors. Les Newell stated that he had "no end of problems" until he replaced his, while Marv Frankel reported that gecko 203's drove the original ones just fine.
>
> While it seems clear that new motors would improve performance, if possible I would prefer to hold off on that expense until I could use the machine to make the money to buy them. Has anybody besides Marv found the original steppers to be satisfactory, if only as a temporary measure?
>
>

I helped a friend setup one several years ago, and he has run the
machine daily and made thousands of parts without a problem. He is happy
to run rapids that are slow by some standards, about 50ipm as I recall.

Bridgeport was a fairly reputable company and sold many of those
machines- I would expect them to work well. I would not expect them to
run at modern servo speeds.

keep it slow and you ought to be fine.

ron ginger