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  • Users: swerider
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  1. swerider

    Where to buy closed differential gearbox for RC lawn mower?

    I am in the process of designing a remote controlled lawn mower which utilizes only one engine to drive the wheels and the blade. In order to avoid having to design a steering mechanism, I want to use a differential and simply brake one side to make it turn that way. I am having trouble finding...
  2. swerider

    Allowable bending stress

    Hi I need some help with calculating the maximum allowable bending stress for a mild steel flat bar (fy = 248MPa). Is there a method for calculating this or do I just use 0.66*fy? Does it matter whether bending is about minor or major axis? Thanks
  3. swerider

    Locking a vertically sliding tube in place

    On an outrigger design, i need a good way to lock the leg, which slides up and down in an outer tube, which is welded onto the outrigger extension arm. I want to eliminate hydraulics and have it purely mechanical. the locking mechanism must be able to handle a maximum load of 18kN. Thanks

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