I have set about designing and making a gearbox to correct the speedo in the Land Rover. The speedo currently reads about 5/8th the speed which it should, this is due to having the LT77 5 speed box rather than a series box. So I need to increase the speed by about 1.6 times. I have chosen some brass gears off ebay, I have a 45 and a 30, which gives me 1.5, so that speedo reads slighly lower than my real speed similar to what car manufactures do. I have put a 28 tooth gear between the two gears to make the output turn in the same direction as the input. I set about getting Ben’s 3D printer out and trying to get it print well, but it was taking ages, this was my best result, which was about 96% the size it needed to be. As you can […]
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