Re: [CAD_CAM_EDM_DRO] Re: bridgeport quill screww

Hi,

Forgot to ask. What size motor would be suitable. What's the typical torque
of steppers used for the quill.

Zafar

----- Original Message -----
From: "John Delaney" <jdelaney2@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, February 06, 2005 7:41 AM
Subject: [CAD_CAM_EDM_DRO] Re: bridgeport quill screww


>
>
> > > A question for bridgeport retrofitters. What size
> > > ball screw is suitable for the bridgeport quill.
>
> >From what I've seen around it looks like people are using 1/2" or
> 5/8" with preloaded nuts. I am using the same screw as my table which
> is huge for the need. But.....I wanted adjustable nuts and all I
> could find anyway were screws that were 1" or bigger with adjustable
> nuts. I am about 25% into the quill drive construction. <IMHO>
> the "best" quill drive I've seen is at Elrod Machine. Anilam's looks
> good too. Check out Jon Elson's site too for a good home brew.
>
> The real secret it appears, is to get the screw as close to the quill
> as possible. 'Course you can't use a really tiny screw either,
> that'll flex. Trade offs, trade offs, trade offs..........
>
> My nickel.
>
> -jd
>
>
>
>
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