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Too much backlash (play) in LEGO gears is an universal problem that unfortunately can't really be mitigated since all compatible LEGO gears are designed with very loose tolerances compared to professional gears. According to Sariel the bevel gears you tried using already have less backlash than regular gears, so you can't really expect any improvement by ...


Here is a possible implementation using this exact part: Video . There are also several other solutions with different pieces if you need more inspiration or explanation: Animated GIF, 4 wheel steering, Top-down view.


In the Ackermann system the lines through the rotating point of the wheel hub and the trackrod joint intersect on the rear axle. This works when the trackrod lenght is shorter than the hub turning point distance. For this part to work, you need to have a fixed ratio between axle track and wheelbase. So a long narrow car won't work and a short, wide car ...

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