Why Machines That Bend Are Better

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  • Published on:  Tuesday, March 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


  • Meg.A. Byte  (Mar 12, 2019)

    This was one of the most interesting episodes that you've ever made!

  • If you thought this was interesting, look up the subject of human factors. If you want a specific category to peruse, try ergonomics.

  • Robot Ninja  (3 days ago)

    Weird flex, but okay.

  • eric bocanegra  (11 hours ago)

    +Eric Miret youre' dumb

  • Eric Miret  (18 hours ago)

    Figures that the top voted comment is a DUMB meme.

  • Khason01  (4 days ago)

    8 P's1.) Part Count (Less) 2:422.) Production Processes (Various) 3:283.) Price (Inexpensive) 3:334.) Precise Motion (no backlash) 5:215.) Performance (no backlash) 5:386.) Proportions (smaller) 7:187.) Portable (lightweight, space application) 7:338.) Predictability (safing & arming WMDs) 10:17in case you missed them :)

  • Eric V  (12 hours ago)

    I wish he included more examples for the uses of these different devices.

  • Sudeep Singh  (21 hours ago)

    4:55 9th P, physics Girl

  • CF1001  (4 days ago)

    1:37 ahh the humble engineers in their natural, mostly awkward and camera shy states XD

  • Quell Ious  (1 day ago)

    You have to bait them out with a hot pocket.

  • DJ BIS  (1 day ago)

    lmao! good eye.

  • Alex Baldwin  (2 days ago)

    Who would winMillions of mechanically complex machines built from the hardest metals with billions of bolts, screws, latches and gearsorSome bendy bois

  • Dio Vidi Putra  (13 hours ago)

    I'll give you 1 like Master

  • saurabh pandey  (4 days ago)

    Narrator : bending machines are betterApple's ipad 2018 : am I joke to you?

  • XtreeM FaiL  (5 hours ago)

    saurabh pandey Did Apple patented bend?

  • William Barnes  (1 day ago)

    Apple products are always a joke.

  • Jack  (3 days ago)

    3:54"I got a quiz for you""Oh-oh"Natural reaction.

  • lol cus he knew he was gonna be conned.

  • Leffa PaL  (3 days ago)

    1:55 -"Would you like to try?" -"I would actually like to feel the force.."*prof Larry smirks in Darth Vaderish*

  • TotallyHuman1  (10 hours ago)

    "You don't know the power of the dark vice"

  • Kirxas  (1 day ago)

    As a WIP aerospace engineer I find this very interesting, I'll remember it in case I can benefit from something similar in one of my projects

  • Indigo Fenrir  (Mar 13, 2019)

    Prof Harry sounds like he made compliant mechanisms out of sheer boredom and consequently became even *more bored.*

  • +Reno Simpson not so much set back I'd say. Depends on the purpose and needs one is designing for. I'm just an average Joe, but I cant see any negative in very smart people applying their brains in unique and complex ways.

  • Dejawolfs  (3 days ago)

    when your IQ is as high as prof Harrys, everything becomes boring.