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  1. V

    Mutilated Worm Drive for Intermittent Cam

    Great questions. I'm only prepared to answer a few of them right now. The tooth thickness is about 2.5mm and the average RPM during the 1/4 rotation of the bevel gear per cycle of the machine will be about 2000 RPM at the most. That part is based on how fast a person pulls down on a...
  2. V

    Mutilated Worm Drive for Intermittent Cam

    I'm trying to stay away from the spur gear solution to keep the part count down and also to avoid having a partial gear in the output stage, which I think I would need. What does everyone think about this idea? What was the single tooth worm gear in my first design is now a wheel with a...
  3. V

    Mutilated Worm Drive for Intermittent Cam

    Speaking as somebody with a degree in Physics, I agree that feelings aren't part of the equation. Maybe I could have phrased that better. How about this? I think enough people have voiced their feelings real-world experience and apathetical nature of physics based recommendations about my...
  4. V

    Mutilated Worm Drive for Intermittent Cam

    Wow. I hadn't considered this. So, the pitch diameter and therefore the gear ratio varies depending on where each gear is in its rotation. Do you happen to know any real-world applications of this type of arrangement? I like the idea, but it seems like it'll be expensive to manufacture. Thanks!
  5. V

    Mutilated Worm Drive for Intermittent Cam

    Thanks for that video. I think I'm going to have to go to a partial gear arrangement something like what's shown there, but with at least two stages. I'm going to model a few possibilities and see if it works.
  6. V

    Mutilated Worm Drive for Intermittent Cam

    Thanks for the suggestion about testing the worm. I think enough people have voiced their feelings about my initial idea that I've been convinced to try something else. I haven't 100% given up on it yet though. I found this worm drive that I could possibly make work. Also, the last mechanism...
  7. V

    Mutilated Worm Drive for Intermittent Cam

    Thanks for your input, but I disagree. Two people have already made suggestions and others including yourself have told me why what I came up with wouldn't work. My goal was to start a discussion where people could share their thoughts on my solution and any ideas they might have about how...
  8. V

    Mutilated Worm Drive for Intermittent Cam

    OK. This makes sense to me. So at least for the parts I have chosen so far (single start worm and 80:1 ratio) it'll be nearly impossible to backdrive the worm. Maybe if I went to a worm with 2 or 4 starts it might become more "backdrivable", but then I'd need that much more rotation of the...
  9. V

    Mutilated Worm Drive for Intermittent Cam

    Hello Compositepro. Thanks for the input. I cannot share the level of detail you're requesting because what I'm cutting, how, and why is part of something for which we are seeking patent protection. While I agree that more information is generally better than less information, my question...
  10. V

    Mutilated Worm Drive for Intermittent Cam

    Hello, drawoh. Thanks for your suggestion. I'm familiar with Geneva mechanisms. I sort of already explored that as an option, but maybe you're thinking of it differently than me. I'm assuming your idea is that I could replace the mutilated worm gear in my simulation with the drive wheel...
  11. V

    Mutilated Worm Drive for Intermittent Cam

    Hello, BEMPE16524. Thanks for your question. If you're asking about physical size, the mutilated worm gear has a pitch diameter of 80mm and the worm has a pitch diameter of 16mm. It's an 80:1 worm drive. If you're asking about how big in terms of loads, I haven't figured that out yet. But...
  12. V

    Mutilated Worm Drive for Intermittent Cam

    Hello everyone. Mods, if you think there is a more appropriate forum for this question, please let me know. And thank you in advance to anyone who can provide some advice. I’m working on developing a machine. This machine will have an output gear that will turn while the machine is in...

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