Hairspring material…

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  • #48670
    tmac1956
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    • Topics Started: 171
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    All:

    If one wanted to experiment with winding one’s own hairsprings, what would be a source for the flat steel wire? While we’re at it, how about mainspring wire as well?

    Thanks!
    Tom

    #53862
    arutha
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    • Topics Started: 85
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    Hi Tom,
    the tool used for winding the three flat springs into (they were done three at a time to produce the equal coil spacing) is difficult to find, I have yet to see one on e-bay. I would imagine you would just wind steel rod in the correct diameter through some sort of press. I think I am correct in thinking that the springs are blued in the tool. It can be done but would take a fair bit of trial and error to get the correct thickness/dimensions etc as the old blued hairsprings were made from a different steel than that which we have today. I am sure I have seen in one of my books recently how to make the tool. I will have a look through and see if I can find it.
    Paul. I typed all that one fingered while holding the baby :)

    #53863
    tmac1956
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    Arutha:

    Thanks!

    Tom

    #53864
    gerene
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    • Topics Started: 16
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    If I remember correctly it is described in the “Chicago School of Watchmaking”. I am not at home, so I cannot verify, but I am quite certain I read it there.
    Arutha is right about it being not trivial at all.

    Regards,

    Jan

    #53865
    tmac1956
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    gerene:

    I have that at home so I’ll go back and look. However, what I’m after is a source for the wire – just to experiment with.

    Thanks!
    Tom

    #53866
    arutha
    Participant
    • Topics Started: 85
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    Could be worth contacting these guys and asking if they have some offcuts you could play with?
    http://mechanicaltimeswitches.ifginstrumentsinc.com/item/all-categories/hairspring-fabrication/item-1003
    Paul.

    #53867
    tmac1956
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    • Topics Started: 171
    • Total Posts: 1259

    Hey – great idea. It never hurts to ask.
    Thanks,
    Tom

    #53868
    gerene
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    • Topics Started: 16
    • Total Posts: 377

    Just for your information, there is also a thread about the same subject going on at NAWCC http://mb.nawcc.org/showthread.php?103922-Anybody-have-the-Treatise-on-Modern-Horology-Glasgow. Maybe it has some usefull information for you.

    Jan

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tmac1956Hairspring material…