Recent content by crabbies2011

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    Quite a tricky gear ratio question to ponder

    I don't have access to the gearbox as it is only a theoretical gearbox! There must be a way of using geometric progression. My friend has worked it out but won't tell me! Argghhh! The only clue he gave be is that the gears have a progressive increment of 1.4 but I need to know how he got to...
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    Quite a tricky gear ratio question to ponder

    Alpha zero I don't know how you achieved those figures? Which formula did you use?
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    Quite a tricky gear ratio question to ponder

    ha that is odd! My example won't be actually built it is the theory behind it that i was after. I need to find a way of calculating those values whether they are linear or not.
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    Have you tried FreeCAD or DraftSight as alternatives to expensive CAD software?

    Ive used draftsight cad before. Very good indeed!
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    Quite a tricky gear ratio question to ponder

    If a 6 speed gear box has a 1st gear ratio of 7:1 and a sixth gear ratio of 1:1 how would you calculate the 2nd,3rd,4th and 5th gear ratio's? If you use the equation for geometric progression which was my first thought - it doesn't work! Any ideas?