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  1. #31
    Join Date
    Nov 2007
    Location
    melbourne australia
    Posts
    2,874

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    Quote Originally Posted by BobL View Post
    Couldn't see any ER40 stuff for sale at Ausee.
    Quite right. I got that link from Google. Obviously a dead web page.
    Chris

  2. #32
    Join Date
    Aug 2021
    Location
    Sydney
    Age
    44
    Posts
    19

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    Quote Originally Posted by paul33 View Post
    There is another option.
    Install a 1400 rpm, single phase 1/2HP 240v motor.
    This is what I have on my small lathe, it has run very reliably for many years.

    Paul
    Quite right.

    Before I posted about this, my preference was to install a single phase motor of correct power, duty and rpm, I took some bad info on the rpm and bought the wrong one (2840rpm dual pole). It was used and cheap so not much lost, I'll run it for a while I suppose, and maybe gear it down slightly on the motor pulley and in the mean time maybe a deal on the correct motor will turn up locally, or will have perhaps saved some pennies to buy a suitable VFD.

    In the mean time I did some more research into running the original 3 phase motor off one phase, some interesting tricks out there, but a lot of stuffing about to get it just right so again, I'll put that idea aside, unless I chance across some suitable parts to go ahead with it.

  3. #33
    Join Date
    Nov 2007
    Location
    melbourne australia
    Posts
    2,874

    Default

    I don't know anything about running a 3 phase motor off a single phase supply, but I would imagine the motor wouldn't run very smoothly (thus negating one of the advantages of a 3PH over a 1P motor). I would also think the motor won't make its rated power, leaving you with a very underpowered lathe.
    Chris

  4. #34
    Join Date
    Oct 2008
    Location
    N.W.Tasmania
    Posts
    1,311

    Default

    Quote Originally Posted by jack620 View Post
    Quite right. I got that link from Google. Obviously a dead web page.
    M&G or aka Mag-Pro have this MT3 set for a reasonable price. While not having any experience with this particular item, I have been quite satisfied with all my dealings with them. Hard to beat for the money especially if you call in to their shop!
    No connection other than being a satisfied customer.
    Rob.
    http://www.mag-pro.com.au/goods.php?id=259

  5. #35
    Join Date
    Aug 2021
    Location
    Sydney
    Age
    44
    Posts
    19

    Default

    Quote Originally Posted by jack620 View Post
    I don't know anything about running a 3 phase motor off a single phase supply, but I would imagine the motor wouldn't run very smoothly (thus negating one of the advantages of a 3PH over a 1P motor). I would also think the motor won't make its rated power, leaving you with a very underpowered lathe.
    I won't go into specifically how to do it but it involves recreating the missing leg using a combination of capacitance and induction.

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