Why Machines That Bend Are Better

  • Published on:  3/12/2019
  • Compliant mechanisms have lots of advantages over traditional devices. SimpliSafe is awesome security. It's really effective, easy to use, and the price is great. Check out SimpliSafe here: https://simplisafe.com/veritasium

    I visited the Compliant Mechanisms Research group at Brigham Young University and spoke to Professor Larry Howell:

    At the above link, you can download 3D-print files to make some of the objects in the video, plus learn more about compliant mechanisms.

    What I learned about compliant mechanisms I summarize in the 8 P's of compliant mechanisms:

    1. Part count (reduced by having flexible parts instead of springs, hinges)
    2. Productions processes (many, new, different enabled by compliant designs)
    3. Price (reduced by fewer parts and different production processes)
    4. Precise Motion (no backlash, less wear, friction)
    5. Performance (no outgassing, doesn't require lubricant)
    6. Proportions (reduced through different production processes)
    7. Portability (lightweight due to simpler, reduced part count designs)
    8. Predictability (devices are reliable over a long period of time)

    Special thanks to Patreon supporters:
    Donal Botkin, James M Nicholson, Michael Krugman, Nathan Hansen, Ron Neal, Stan Presolski, Terrance Shepherd

    Animation by Alan Chamberlain


  • gutspraygore (Mar 12, 2019)

    "Is that good thinking?""It's thinking at least."Heheh. I like this guy.

  • Jan Samohýl (Mar 28, 2019)

    This is mind-bending, but luckily, my mind is flexible and compliant.

  • CunningLinguist01 (2 days ago)

    I wish my wife was...

  • Thomas Neal (6 days ago)

    "Why Machines That Bend Are Better"written by Bender B Rodriguez

  • joseph dragojevich (2 days ago)

    +Brandon LaBianco idk maybe cause this isnt reddit lmao

  • Tit Cheese (5 days ago)

    +Brandon LaBianco ik same!!!!🙊

  • Criptufu Pantalones (Apr 25, 2019)

    Physics: If you fold a material enough times, it will weaken the structural integrity of the object.Samsung: We present u the galaxy fold

  • ugly cheese (4 hours ago)

    But it has hinges like on a door

  • mfk12340 (2 days ago)

    Not all materials work harden.

  • Karthik C (Apr 14, 2019)

    Practical examples of use of compliant mechanisms in everyday products1. Every shampoo bottle uses a live hinge made by injection molding - very cheap, durable and assembly free.2. Computer mouse buttons use flexures (those bendy things you see throughout the video). The microswitch inside it has a diaphragm flexure and the top casing flexes when you press on it to transmit the compressive force. Older mouse models had separate distinguishable buttons, now its all one piece.3. Cable ties have a very...

  • Tanmay Garg (May 13, 2019)

    I thought wow, 5 years and the world would be different :D, but it already is

  • Karthik C (May 9, 2019)

    +FabianAB You are welcome.

  • Doctor Jones (Mar 13, 2019)

    The thruster control module was probably the coolest thing I've seen all year.

  • Doctor Jones (Mar 17, 2019)

    +ludwig amadeus_mEmEs_

  • idworkhard (Apr 12, 2019)

    Man, this professor is cool. Big respect!

  • FlorimondH (May 4, 2019)

    My experience with plastic fatigue in toys doesn't want me to believe this is a good idea.

  • Xelbiuj (6 days ago)

    I don't imagine the switches on nuclear weapons are triggered over a million times. :P

  • Brian86992DH (May 14, 2019)

    +Joe Stevenson Not necessarily. When a material is deformed (bent) it has a region of movement that is within the elastic region. This means that no permanent deformation occurs and the lifetime of cyclical deformations within this range can be infinite. This elastic region varies for different materials and designs. A good example of this is you can bend a credit card slightly as much as you'd like. As soon as you bend it too far, though, you leave the elastic region and permanently deform the plastic...

  • D W (3 days ago)

    Absolutely AMAZING stuff! I could have watched this stuff for hours.

  • Montana Ranger (May 13, 2019)

    This sounds suspiciously like something Futuramas Bender would say....