I did think check Manufacture calculations.? When did back 1880¡¯s they always right this first time.?
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Even when I am cutting gears? I do a dry run and mark where the tooth goes before making the first cut.?
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Dave?
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On Mon, Feb 3, 2025 at 10:36 AM, Richard H (from Lincoln UK) wrote:
Take care guys with that Toolmaster division table posted by Dave. It is full of errors and inaccuracies. To take a couple of examples the 43 division figures will give you 40.5 divisions (approx) and the 50 division figures will give you 49 divisions (exactly).
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Everything above 6 divisions should be checked and corrected as necessary!
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FWIW the figures giving 10 divisions can be 10, 20, 3, 12 and for 30 divisions 30, 20, 1, 4 works. For 43 divisions its 43, 43, 0, 36 All of those are exact unlike the tabulated figures.
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For 50 divisions I can't find an exact solution with the articles available ¡°plate¡± but 50, 43, 0, 31 comes close.
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I'll leave you to calculate the others!
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Richard.
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davesmith1800