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An interesting way of making helical gears

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  • #16
    Nice 3 1/2" flatbed Drummond aka Pre-B there and one of the earlier versions of the breed. Pity he took it off the original treadle base though from his description it wasn't a Drummond one. As shown by the shaper engraving above the techniques are not new and undoubtable predate his ~1908 lathe.

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