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52090Re: [atlas_craftsman] New Lathe! Not Atlas...

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  • Michael Fagan
    Sep 2, 2008
      I agree, although I would equally strongly suggest that you avoid a
      static phase converter and go straight to either a rotary phase
      converter or an electronic VFD.

      On Tue, Sep 2, 2008 at 11:48 PM, <jerdal@...> wrote:
      >
      > ----- Original Message -----
      > From: "hillman109" <hillman88@...>
      > To: <atlas_craftsman@yahoogroups.com>
      > Sent: Friday, August 29, 2008 2:53 PM
      > Subject: [atlas_craftsman] New Lathe! Not Atlas...
      >
      >> I've just picked up a Standard Modern Lathe, 11x20. While I love the
      >> 10F, it's not in the same class as the 11". So here's the problem,
      >> the lathe is 3ph and we don't have any here. It's a standard motor
      >> frame and whatnot so swapping it out is no problem. I am planning on
      >> picking up a Baldor L3507M 3/4 hp 1ph motor after the long weekend.
      >> How does one wire it? Reverse on this machine is activated by a
      >> rotary contactor switch with a lever. There is also an electrical box
      >> inside the cabinet with what might be two "heaters"? Keep in mind
      >> that I know nothing of the electrician's trade, but surely it couldn't
      >> be hard to hook this thing up?
      >>
      >> The reverse switch has a small plaque on it stating that it's good for
      >> 3/4hp 1ph @ 110V, and 1hp @ 220V. So I shouldn't have to change that.
      >> The main power switch doesn't appear to have any rating written on it
      >> though. Could someone give me some advice on how to figure this out?
      >>
      >> Thanks,
      >> Kirk
      >
      > Very strongly suggest that you simply obtain a "static converter" box, as a
      > minimum, wire it per the extremely clear instructions (at least
      > Phase-A-Matic is extremely clear), and move on.
      >
      > Note that per their very nice instructions, you can move on to true
      > three-phase by adding another slightly larger 3 phase motor as an "idler",
      > forming a "rotary phase converter", at some future time. Motors are often
      > available as scrap or cheaply from surplus places.
      >
      > Real three phase, even via a rotary converter is a lot nicer, leads to less
      > chatter, etc. The benefits it has for flat belts will not be relevant for
      > your machine.
      >
      > JT
      >
      >
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