Potential bad idea #87....large South Bend lathe - Page 2
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  1. #26
    Join Date
    Jun 2015
    Location
    The wheat fields of Kansas,in a large metal building
    Posts
    284

    Re: Potential bad idea #87....large South Bend lathe

    I agree with Sam, a BXA may be a better size for that lathe.

    The swing over the compound is another thing to consider. I have BXA and CA tooling, no CXA my 13EE actual swing 15.5 inches I use both BXA and CA like Sam mentioned I use big boring bars. That said, my 13EE has 15HP, for a lot of work the BXA size has better access and visibility. I don't need a riser block to get the tools at center but it is close, not a quarter inch close though. I don't think you would gain much in rigidity with a CXA, the compound and saddle are not very heavy on the old South Bend lathes. If you want to use bigger tools get a 4 way turret tool post, they are cheap on ebay and very stout.
    Steve from SoCal now in Hutch

    Miller Dynasty 300DX Coolmate3 Speedway Torch
    Miller XMT 450 MPa plus with D-74 MPa Plus
    Miller Bobcat 225 NT
    Hypertherm Powermax 45
    And a whole bunch of machines

  2. #27
    Join Date
    Sep 2013
    Location
    central Wis.
    Posts
    4,253

    Re: Potential bad idea #87....large South Bend lathe

    I would go with a CXA. On my 13" southbend a bxa is about perfect.
    Miller xmt304, Miller S22 p12, Miier Maxstar SD, Miller 252 w 30A, Miller super32p12, Lincoln Ranger 9, Thermal Arc 181I with spoolgun, Hypertherm 10000 ,Smith torches. Esab 161lts miniarc.

  3. #28
    Join Date
    Jun 2008
    Location
    New Plymouth ID
    Posts
    987

    Re: Potential bad idea #87....large South Bend lathe

    One thing to think about is rather than making a phase convertor just change the motor out it adds value to the machine and its only one thing to start. I have three phase in my shop and i still try to find single phase stuff if below 3 horse just easier to deal with. Im scared of electronics though know that vfds have gotten so cheap that that is probably the way to go. I have a ebay cxa on a16” monarch it was about perfect and it will hold 1.25 boring bars with the extra large holders also have a ca on my newer lathe it stands about .5 “ taller
    Last edited by idacal; 05-26-2019 at 11:10 AM.
    Do not argue with an idiot. He will drag you down to his level and beat you with experience.

  4. #29
    Join Date
    Aug 2007
    Posts
    352

    Re: Potential bad idea #87....large South Bend lathe

    The lathe and milling machine actually came with an American Rotary 3-phase converter (as well as two 3 phase cutoff boxes), so no reason to change anything out at the moment. I *may* eventually try a VFD, but for right now I'll stick with the converter.

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