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Thread: Need help with a machining job

  1. #11
    Join Date
    Dec 2016
    Location
    Helsinki, Finland, Europe
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    2,565

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    [QUOTE=loose nut;1194912]
    Quote Originally Posted by Mcgyver View Post
    interesting challenge. What sort of accuracy is required? How Rube Goldberg are you prepared to go? what machines are available?

    Accuracy is not critical, some amount of error is OK.

    Lathe, Bench mill.
    You already have more equipment than smiths 150 years ago
    Or this guy https://www.youtube.com/watch?v=ihPFjuxBjPo

  2. #12
    Join Date
    Nov 2007
    Location
    Clovis CA USA
    Posts
    333

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    Sounds the mill will do the job
    But a BS2 is to big for the mill
    You build a spin jig gear to mill screw

    Dave


    [QUOTE=loose nut;1194912]
    Quote Originally Posted by Mcgyver View Post
    interesting challenge. What sort of accuracy is required? How Rube Goldberg are you prepared to go? what machines are available?

    Accuracy is not critical, some amount of error is OK.

    Lathe, Bench mill.

    I have thought about the rifling method but not having done it before I would probably scrap a lot of pieces to get a good one just as someone trying to learn how to rifle a real barrel would.

    Something I forgot to mention, overall length is 10", grooved length is 8".

  3. #13
    Join Date
    Sep 2006
    Location
    Southwestern Ontario, Canada
    Posts
    5,056

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    Quote Originally Posted by Hawkeye View Post
    What material is the tube?
    I was hoping to use DOM tubing steel or brass (if available), copper as a last resort.
    The shortest distance between two points is a circle of infinite diameter.

    Bluewater Model Engineering Society at https://sites.google.com/site/bluewatermes/

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