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  1. #16
    Join Date
    Feb 2018
    Location
    Perth. Australia
    Age
    63
    Posts
    27

    Default

    Thanks for that Anorak Bob. Looks very interesting. I noticed mine has a McPhersons badge on the right hand side.
    Well I guess I can call it mine now. I am now the proud owner of a Model A # 11461!
    Picked it up Saturday and it is now happily residing in my shed!
    It wasn't too bad to lift between 3 of us once we had removed the motor, tool post and tail stock as well as un bolting it from the base.
    I still haven''t refitted the motor yet. Life has been a bit hectic the last week.
    It didn't have a micrometer saddle stop unfortunately BobL.
    I bought a new main drive belt today from Transeals in Welshpool.
    A mate has offered me a 4" 4 jaw chuck for $50. Only problem is it is in Melbourne.
    Thanks for all the tips and advice so far everyone. Keep them coming if you like.

  2. #17
    BobL is offline Member: Blue and white apron brigade
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    7,182

    Default

    Good work Mark.

    While the motor is off you should have a look at the connections to see if it suited to a VFD.

  3. #18
    Join Date
    Feb 2018
    Location
    Perth. Australia
    Age
    63
    Posts
    27

    Default

    There's nothing very special about it BobL. It's just a single phase motor bolted to the original plate.
    What are the advantages of a vfd?

  4. #19
    Join Date
    Nov 2007
    Location
    melbourne australia
    Posts
    3,228

    Default Standard parts for a 9" Model A

    If it’s single phase you can’t fit a VFD. Advantages of a VFD are speed control (fewer belt changes), faster deceleration (not too fast or your chuck will unscrew), jog and overspeed. I reckon it’s the second best addition to a lathe after a QCTP.
    Chris

  5. #20
    BobL is offline Member: Blue and white apron brigade
    Join Date
    Feb 2006
    Location
    Perth
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    7,182

    Default

    Quote Originally Posted by Mark F View Post
    There's nothing very special about it BobL. It's just a single phase motor bolted to the original plate.
    What are the advantages of a vfd?
    Chris has pretty well nailed it.

    The ability to change speed without stopping the motor is probably for me the most useful feature.
    If you use a chuck drawbar type holder you can also reverse the motor direction at the push of a VFD button - useful for unscrewing taps and dies.

  6. #21
    Join Date
    Feb 2018
    Location
    Perth. Australia
    Age
    63
    Posts
    27

    Default

    I've got the original 3 phase motor but don't have 3 phase power in my shed.
    I might be stuck with the single phase for the time being.

  7. #22
    BobL is offline Member: Blue and white apron brigade
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    7,182

    Default

    Quote Originally Posted by Mark F View Post
    I've got the original 3 phase motor but don't have 3 phase power in my shed.
    I might be stuck with the single phase for the time being.
    Well that's another advantage of VFDs.

    Up to about 4KW, some VFDs will convert 240V Single Phase to 240V 3Phase.

    3Phase motors come in either of two connection modes.
    Delta (∆) or Star (Y).

    Some motors can be converted from 415V 3P Y to 240V 3P ∆ simply by changing connections inside the motor connection box.
    That's why I suggested checking your motor connection box.

    Some 3P motors are hardwired as 415V Y but can be converted to 240V ∆ so they can still run from a SP 240V VFD.
    The conversion should really be performed by a motor rewinder but this can cost as much as a used motor with the right connections

    3P motors hardwired as 415V ∆ cannot be converted to run on 240V since all they can be converted to is a "Y" connection and that will then make them an 830V motor.

    In the Woodworkers forum there is a thread dedicated to VFDs and shows many example and explains some of the intricacies.
    VFD install summaries

    If you want to see a bunch of different machines running on VFDs, PM me to arrange a tour of my shed

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