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    Re: Manufacture new Bygraves?
    From: Tom Sult
    Date: 2009 Jul 03, 10:12 -0500

    I have no skills to offer but would be a buyer!
    Thomas A. Sult, MD
    Sent from iPhone
    On Jul 3, 2009, at 2:18 AM, engineer@clear.net.nz wrote:
    > A few years ago, when I and a couple of friends wanted each to own a
    > gear hobbing machine, we cooperated. One made the casting patterns
    > and saw them through the local foundry, another did the heavy
    > machining and I did the small parts like feedscrews and their nuts.
    > It occurs to me that several handy people could combine their skills
    > to produce replica Bygraves slide rules. There will surely be
    > someone who knows where to access tubing in which each size nests
    > snuggly in the next largest size, someone else will know how to
    > produce hard-wearing replica scales, another may be prepared to turn
    > the bobbins at each end and I would volunteer to do small bits of
    > metalwork. The results do not have to make profits, though a little
    > would be nice. Since there seem to be very few surviving Bygraves
    > calculators, one could at least have the satisfaction of owning a
    > replica. The starting point of course would have to be accurate,
    > dimensioned drawings of an original, preferably following the metric
    > system, so the manufacturing consortium would not have to be
    > confined to the USA.
    > Any offers/takers?
    > >
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