Re: [CAD_CAM_EDM_DRO] Re: Taig mill (ballscrews)

Any idea how well these would work on a bigger (Bridgeport size) mill?

Smoke
-----Original Message-----
From: Mike <mnels@...>
To: CAD_CAM_EDM_DRO@egroups.com <CAD_CAM_EDM_DRO@egroups.com>
Date: Monday, November 13, 2000 1:17 PM
Subject: [CAD_CAM_EDM_DRO] Re: Taig mill (ballscrews)

> >When you saw this mill did you look at the amount of space avalable
> >for ball screws?
>
>For what it's worth, the BSA zero backlash screws used by MaxNC seem to
>work very well for mini-mill CNC. Mine don't have any backlash that I can
>yet detect. They're supposed to be self compensating for the life of the
>assembly. The nuts on the 1/4" MaxNC screws are 0.64" in diameter and
>1.18" long. The drive friction is similar to a standard acme nut. The
>screws appear to be the "XC" series made by BSA at:
>
> http://www.ballscrews.com/html/2/2_index.html
>
>While the Taig uses 3/8" screws, the BSA XC screws might be an easier (and
>cheaper) retrofit than ball screws.
>
>Also FYI... I looked at the Taig mill and liked the beefier 3/8" screws
>and spindle motor assembly. But their CNC motor mounts are awkward and,
>despite their claims, I'm not sure their design is any more rigid than the
>MaxNC 10. The MaxNC was designed as a CNC mill from the outset while the
>Taig is clearly a retrofit. The MaxNC 15 is very likely more rigid than
>the Taig and offers much greater throat, travel and table size (but it's
>also more expensive). The big downside to MaxNC is their slow and phase
>based CNC hardware and software but you can get the mills without the
>motors, controller or software if you want.
>
>
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