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  1. CharlesF

    Rotary transmission with linear guidance

    Fantastic, many thanks! @gruntguru That's an ingenious solution, as you said the non-linear acceleration may would contribute towards the kick. Am I right in guessing it reaches it's peak when the pin is closest to the center of the geneva wheel?
  2. CharlesF

    Rotary transmission with linear guidance

    That's not a helpful answer! The mechanism is fairly simple, I'm just looking better alternatives should there be one.
  3. CharlesF

    Rotary transmission with linear guidance

    HI all, My background isn't in engineering so please excuse any ignorance. I'm Designing this mechanism driven by two powerful DC motors to automate the goal keeper on a Foosball table. For obvious reasons I'm trying as hard as possible to keep the inertia of the moving parts as low as...
  4. CharlesF

    Identify gear and motor requirements given known working point

    It's the total inertia for everything attached to the working point (top rod). Given that I don't know which pulleys or motor I'll be using it's impossible for me to take them into account. Perhaps I should rephrase my question; Based on 2.75Nm of required force, how can I calculate the effect...
  5. CharlesF

    Identify gear and motor requirements given known working point

    Thanks for your input @3DDave! I worked out that given the total inertia and acceleration, my required torque is 2.75Nm. Now, I could pick a motor that matches this requirement but considering my mechanism is belt driven, how can I use the ratio between the pulleys to assist in achieving these...
  6. CharlesF

    Identify gear and motor requirements given known working point

    Hi All, I'm a software engineer trying to design a simple belt driven system. I've identified my working point requirements but I'd appreciate if someone can help figure out the following: - How do I identify the requirements for my motor given the unknown gear setup? - What's the maths to...

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