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  1. #1
    Join Date
    Jan 2022
    Location
    South Africa
    Age
    72
    Posts
    3

    Default Myford Super 7 lathe

    Hi I'm from South Africa, Western Cape. Is there somebody that has experience setting up a Myford Super 7 lathe to cut Imperial threads using a Norton gearbox?

    Regards Barry

  2. #2
    Join Date
    Jul 2016
    Location
    Melbourne
    Age
    35
    Posts
    1,522

    Default

    If you give us some photos of the back gear train and the box we can piint you in the right direction. Most likely its an imperial machine so it'll be very simple, count the threads per inch of your leadscrew and report back.

    Sent from my SM-G973F using Tapatalk

  3. #3
    Join Date
    Sep 2012
    Location
    York, North Yorkshire UK
    Posts
    6,436

    Default

    Hi Barry,

    Welcome to the forum.

    I have an Imperial Myford S7LB with a Norton gearbox. Normally the gearbox settings for all the threads that it can cut using the gearbox can be read from the plate riveted to the top of the gearbox. The only got-ya is if the fine/coarse feed gear is the wrong way round. I always have mine in the fine feed position, at this point in time because I often cut a metric thread, I use a 33 or 34 tooth gear after the tumbler in place of the 21 tooth gear that is normally there. Somewhere I have a chart listing the available threads that can be cut using this gear arrangement. Though this chart is available on the MEM forums.

    The home of Model Engineer and Model Engineers' Workshop Magazines
    Best Regards:
    Baron J.

  4. #4
    Join Date
    Jul 2007
    Location
    Perth
    Posts
    332

    Default

    Attached are scans from my Myford gearbox manual, hope they come out ok. Alan
    Attached Images Attached Images

  5. #5
    Join Date
    Jan 2004
    Location
    Mackay North Qld
    Posts
    6,446

    Default

    Hi Barry,

    Welcome to the MetalWork Forums,

    We have some fine folks here who are supportive, friendly and helpful.

    Please take the time to navigate around the forums to view the varied and interesting subjects.


    To do this, goto the the FORUM box in the top left hand corner of the screen. Click Forum Home and a scroll down page will come up.

    Scroll down the page and the various help pages and sub forums shall be shown.

    Please read the Terms of Use on the very top of the scroll down page - they are our rules.
    To save time here's the link

    https://metalworkforums.com/f90/t197...terms-tou-read

    Many pages also have a sticky at the top.If you post its always a good idea to check the sticky ,if there is one there.

    Please post your questions in the appropriate MetalWork forum.

    Again, welcome to our forums.

    Grahame

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