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  • Users: RANorrisPE
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  1. RANorrisPE

    8620 Case Carburized

    Hi all, Back in March I sent out for a few sets of prototype bevel gears to be made. For cost, capability (I've spent the last decade doing spurs and none of my local shops wanted anything to do with 2 sets of 88 deg bevels) and timing reasons, I went with a shop I had never worked with before...
  2. RANorrisPE

    Gear software showing negative approach length/ percent?

    Hi All, I've been looking everywhere I can for this subject without any luck (Dudley, Khiralla, and Buckingham's books and all over the web) without any success. I'm designing a three gear system, and I'm attempting to make it with long addendums/ all (or at least close to it) recess action...
  3. RANorrisPE

    Addendum Balancing and Center Distances of Multi Stage Epicyclic Gear Train

    Hi all! I've been doing some digging, and haven't been able to locate a resource to help with my question. I'm still new to epicyclic gear design, so thank you for your patience! My company is working on a three-stage epicyclic gearbox with all three stages sharing the same ring gear. We are...
  4. RANorrisPE

    Two output Epicyclic Gear Train Calculations

    Hello All, I've been tasked to develop a generalized model for calculating speeds/torques etc. of a new series of epicyclic gear trains we are developing. This is new territory for the company I am with so there is not any tribal knowledge for me to go on here. I have a pretty good grasp in...
  5. RANorrisPE

    PE Certification and Freelancing

    Hi all, I'm a mechanical engineer about 4 years out of school. I had no problem with the FE and am looking into taking the PE. I've had a couple jobs so far and have learned a good ammount but have decided that working for myself is my preffered career trajectory in the long term. My...

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