Re: [CAD_CAM_EDM_DRO] Bridgeport Series 2 Conversion

I've got one, so does another prominent member of this list in Colorado. First
thing we both did was yank the spindle wizard. I bought a standard b-port quill
handle from www.use-enco.com for less than $20, and it fit right where the spindle
wizard come off. I can look up part #s and take pictures, if necessary.

The reason for the spindle wizard is that only the knee is CNCed, and with the
antique electronics it could only move really slow (like 24 ipm?). The spindle
wizard was a pneumatic way of drilling pre-set depth holes, quickly. It has
no use in this day and age of bipolar drives and Mach2.

The "other guy" in colorado (I'll let him speak for himself, if he has time
to answer questions. He has been extremely helpful to me, but is extremely
busy at the moment) replaced his steppers with servos. I think it was because
he had a bad stepper. Sometimes when the old stepper drive electronics go bad,
they can demagnitze a stepper. My steppers were good, so I used two compumotor
drives I already had (I think only up to 5.5A though...) and a gecko on the
Z set at 7 amps. Right now the Z is only 45

I hear that these motors want higher voltages and currents than a gecko can
provide, but since this is a hobby, it suits me just fine.

When my day job lets up, I'm going to have a lot of questions about maintenance,
operation, etc. I really have no idea how to make sure everything is getting
oiled properly. And a big concern of mine is that the surface finish is suffering
when I do a cut with the side of an end mill. Could it be a loose spindle,
or do the ways need adjusting? What kind of back lash should I see? On the
Y, it's measurable, at a few thou. Can this be adjusted?

The previous questions are more suited for the Bridgeport Mill yahoo list, if
you want to meet over there for more Mill type questions.

Oh, and I have the manuals for the controls (my electronics were built in 1976),
but I don't think they would be of any use to you, as it sounds like you are
(smartly) planning on replacing them. I could use to buy a copy of a maintenance
manual, or operation manual though...

Good luck, and have fun!

- Steven Ciciora

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>Greetings All, My first post. I have purchased a clean Series 2
>early step motor B'port to retro. Any other folks done one? I'm
>thinking keeping steppers, Mach2, API drives (got them in stock
>already). Could use feedback re: choices and direction with "Spindle
>Wizard" Thanks much! Larry
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