Why Machines That Bend Are Better

  • Published on Mar 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: 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

Comments • 5 884

  • William Murphy
    William Murphy Day ago

    Rorschach test... two people being intimate

  • Retro Coyote
    Retro Coyote Day ago

    time for mega man

  • ahmed muhammed
    ahmed muhammed Day ago

    1:37 those people behind be like what are they doing here...1:38 nvm i will leave

  • Deuce Moncura
    Deuce Moncura Day ago

    I am pretty glad to see that there are very few dirty jokes in the comments of this video.
    And this comment just backfired on me, didn't it?

  • Μιχάλης Αρ.

    I 've learned so many things from you!

  • Durbar Show
    Durbar Show 2 days ago


  • E&A Productions
    E&A Productions 2 days ago

    soooo... what your saying is that the iphone 6+ was actually good???

  • Rainbow Zeebra
    Rainbow Zeebra 2 days ago

    this video should have been named "how to arm nuclear weapons" to get more views

  • joecugo
    joecugo 2 days ago

    Simplisafe is garbage

  • Fresco
    Fresco 2 days ago

    The elephant sh#t broke my mind. Thanks.

  • Not A Sith Lord
    Not A Sith Lord 2 days ago

    Simplisafe is an unreliable product that you don't want to rely on for your home security. Please hire a security professional to install a hardwired system or approved UL/ULC wireless system in your home.

    - A security technician.

  • Mike Bevins
    Mike Bevins 2 days ago

    In your little "Physics girl" cameo you look disheveled almost like if you just had sex ! Just saying

  • Beef Jerky
    Beef Jerky 2 days ago

    Why is Veritasium so interesting!

  • C1N3M4T1x
    C1N3M4T1x 2 days ago

    9:17 that already exists🤔

  • Pepeijn Hazelhof
    Pepeijn Hazelhof 2 days ago

    Lot of plastics how about metals

  • Ostravak
    Ostravak 2 days ago

    How they worked out material fatigue?

  • EpicEpidemic
    EpicEpidemic 3 days ago

    #9 "Private"

  • Yawg moth
    Yawg moth 3 days ago

    Woah, dude has greys in his beard now. Where has the time gone?


    For 3D printing, what plastic would be best?
    PLA is not very flexible I know

  • Jari Fuller
    Jari Fuller 3 days ago

    very cool...thx

  • Fharish Ahmed Clips
    Fharish Ahmed Clips 3 days ago

    Most Cringe moment 7:56

  • Ricky Downhill - RDH

    This is all very cool, but that microscopic stuff is nuts!!

  • M
    M 3 days ago

    Yea because we have not enough plastic on earth xD

  • Chris
    Chris 3 days ago

    These guys at 1:37

  • crazyassailant
    crazyassailant 4 days ago

    At about 3:44, you ask the question about how long the switch piece lasts. He referenced fatigue testing which got over a million cycles before failure. Is there any kind of metric or estimation to what that equates to in terms of time in real-world use? How long would that be expected to last?

  • Jenn Hoff
    Jenn Hoff 4 days ago

    Wow, this guy is amazing!!!

  • Kanishk Gang
    Kanishk Gang 4 days ago

    The thumbnail is demonitized.

  • Teerin Varongchayakul

    this is the coolest tech ever!

  • Dylan Dreisbach
    Dylan Dreisbach 4 days ago

    Time to get my 3d printer set up again! They are quite cheap if you don't mind being on your own setting it up and troubleshooting and calibrating.

  • t guanni
    t guanni 4 days ago

    So damn cool...

  • fernando jaimes
    fernando jaimes 4 days ago

    my reaction to this is just... :O WoW, awesome

  • Victor Sebastian S.
    Victor Sebastian S. 4 days ago

    just just.. instant subscribe

  • Charterf 7
    Charterf 7 4 days ago

    Ipad 11 bend

  • ufewl
    ufewl 4 days ago

    just a realty bad video a waste of time, wont be subscribing

  • ufewl
    ufewl 4 days ago

    What the fukc is going on at 6.07 we cant see what is going on or what she does so for someone who explains science it is fukcing uselss

  • Abdel Hakim
    Abdel Hakim 4 days ago

    i can watch your videos all day long one of my favorite TheXvidrs

  • Luis Molina
    Luis Molina 4 days ago

    Bender likes this video.

  • Heaven Josiah
    Heaven Josiah 4 days ago

    Man, if that can work with the electricity conducting paint, it will be crazy awesome

  • Delphin Outfits
    Delphin Outfits 4 days ago

    complaint mechanism means soft transition, more flexible, viable

  • archisaurus
    archisaurus 4 days ago

    What an incredible video. Thank you

  • Post Cancel
    Post Cancel 4 days ago

    I want that Elephant rump!

  • Дмитрий Д
    Дмитрий Д 4 days ago

    I should mention that you have compliant mechanism. It is buttons in your computer mouse. Quite old and proved design of buttons.

  • Charles Darwin
    Charles Darwin 4 days ago

    So that Atom bomb arming mechanism was another WATCHTIME-BAIT?
    Came after seeing HOW TO VIRAL video.

  • Schrödinger
    Schrödinger 4 days ago

    This guy has the best job in the entire world I won't to be him

  • Runn Jeet
    Runn Jeet 5 days ago

    Your incredible research methods made me say this, Can I work under you as an assistant sometime?

  • MrFilipang
    MrFilipang 5 days ago

    Why isn this industry standard??

  • keyman21
    keyman21 5 days ago

    TIL im better than straight people

  • Vinayak Halekoti
    Vinayak Halekoti 5 days ago

    Backlash also can see in clearence between rack and pinion.

  • Ismael Castillo
    Ismael Castillo 5 days ago

    Wuoo so many "WTF" moments!

  • Anton Chigurh
    Anton Chigurh 5 days ago

    Bender? It’s Bender 😔.

  • Had to wait 90 days to change my name

    Hear that ipad pro?

  • daniel I
    daniel I 5 days ago

    but i am straight though

  • ChafradorGaming
    ChafradorGaming 5 days ago

    Bite my shiny metal ass.

  • hello there good guy!

    dr banner?

  • KB
    KB 5 days ago

    why the thumbnail look like two people having sex

  • jhkkjhk
    jhkkjhk 5 days ago

    Thumbnail looks like an Aphex Twin logo

  • SKMC69
    SKMC69 5 days ago

    I grew up in the 70s and 80s and knew sooooo many people who died in car crashes. I wonder how many lives Crumple Zones have saved in the modern era?

  • Mike Volume
    Mike Volume 6 days ago

    “Why Machines That Bend are Better”
    Robot Amon seethes.

  • D W
    D W 6 days ago +4

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

  • SkhairKro89
    SkhairKro89 6 days ago

    Samsung missed a major opportunity to sponsor this video with their Flagship Folding Phone!

  • Steve C
    Steve C 6 days ago

    I suspect such compliant mechanism could make a better artificial knee joint.

    KIRAN KULKARNI 6 days ago +1

    This was invented by an Indian professor

  • Enderwarrior X
    Enderwarrior X 6 days ago

    Remind me again what the purpose of the satisfying clicky thing is, why you’d need that hinge and how the last mechanism keeps nuclear arms safe from earthquakes?

  • haechi21
    haechi21 6 days ago

    I want that elephant.

  • Lucas Carman
    Lucas Carman 6 days ago

    I want to see more of the steel clutch. That was the coolest thing to me

  • Nouche
    Nouche 7 days ago +1

    Can we agree upon the ambiguity of the thumbnail, please?

  • Paddy
    Paddy 7 days ago

    mind blown

  • James Andrew McNamara

    So cool to learn about complaint mechanisms!

  • Michael Lopez
    Michael Lopez 7 days ago

    you should show some statics analysis for these mechanisms, and then compare them to traditional variants such as hinges and pulleys!

  • Coding Tunes
    Coding Tunes 7 days ago

    If you pause at 4:20 you realize these guys have no idea where their plastic comes from.

  • Analytical Reactor
    Analytical Reactor 7 days ago

    At 9:06 you present a clutch which is OK, but you avoid saying "centrifugal clutch." AND, you present it to your "physics girl," who likewise does not use the word "centrifugal." WTF is going on here? Rather than pretending that this is a new invention (thus insulting everyone who had a go-cart when he was a kid), you could have been honest and discussed its advantages/disadvantages with typical in-use clutches.

  • ryan mundell
    ryan mundell 7 days ago

    this reminds me of a spring

  • Duderobi Patschie
    Duderobi Patschie 8 days ago

    yes bending is better this thought also Samsung

  • MrWolf
    MrWolf 8 days ago

    1 million repetition cycles, damn

  • Rei Mici
    Rei Mici 8 days ago +7

    Never witnessed such a genius yet simple idea

  • StobbyEnduroMX
    StobbyEnduroMX 8 days ago

    I'm sad that you never explained exactly how it was that this engineers nuclear safety device worked.

  • ุ
     8 days ago +3

    *Machines that bend are better*
    ( ͡° ͜ʖ ͡°)
    Think i can agree on that

  • Harbinger
    Harbinger 8 days ago

    I went to BYU but I studied Philosophy...

  • Jacob Moorman
    Jacob Moorman 8 days ago +1

    How do they age?

  • Richard Parker
    Richard Parker 8 days ago

    About 54 seconds in you can see a Prusa 3D printer in the back to the Right. Very cool.

  • Stoney Lonsome
    Stoney Lonsome 8 days ago

    Why are bending machines better- because Bender said so "I said bending is better!"

  • Legion
    Legion 8 days ago

    Everybody knows that Bender is great.

  • Bob Dillahunty
    Bob Dillahunty 8 days ago

    How can I personally profit from this financially even though I did nothing whatsoever to contribute to it?

  • multiplexed
    multiplexed 8 days ago +2

    Springs and centrifugal clutches are not news... even if they're onesies.

  • John Smith
    John Smith 8 days ago

    Many Tupperware products have living hinges.

  • Serge Goncharov
    Serge Goncharov 8 days ago

    круче чем последний выпуск Дудя

  • Cestarian Inhabitant

    This... This is revolutionary...

  • Jason Willows
    Jason Willows 9 days ago +1

    "This makes sure that no random vibration, like earthquakes, can arm nuclear weapons" Because god knows how many times the earthquakes keep on guessing passwords.

  • Bloginton Blakley
    Bloginton Blakley 9 days ago

    Glad I watched this.

  • The Cereal Guy
    The Cereal Guy 9 days ago

    That's honestly very interesting

  • Randy Bobandy
    Randy Bobandy 9 days ago

    iPhone 6 disagrees.

  • Роман Белоусов

    О боже мой. У нас тут изобретение велосипеда.

  • 오재화
    오재화 9 days ago

    See ipad is not bad


  • Jake Kang
    Jake Kang 9 days ago +1

    This video reminded me once again about the greatness of "Occam's Razor."

    Simple is the best always.

  • Leocat Bestcat
    Leocat Bestcat 9 days ago

    1:44 This thing looks like the Waterwraith run!!!

  • Thomas Neal
    Thomas Neal 9 days ago +239

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

    • joseph dragojevich
      joseph dragojevich 5 days ago +1

      +Brandon LaBianco idk maybe cause this isnt reddit lmao

    • Tit Cheese
      Tit Cheese 8 days ago

      +Brandon LaBianco ik same!!!!🙊

    • Brandon LaBianco
      Brandon LaBianco 8 days ago +5

      Why does this not have more upvotes. I browsed the comments just for this.

  • NovaMG
    NovaMG 9 days ago +2

    That elephant mechanism would be really good for earthquake protection for buildings

    • PIT PYG
      PIT PYG 8 days ago

      That mechanism was good for force in one direction, the X direction. For an earthquake you would need to handle forces for Z and Y as well.

  • Wray Gamma & His Gamma Rays

    I am bender please insert girder

  • Zapped Cannon
    Zapped Cannon 9 days ago +1

    Video: you know, tools that bend are better.
    Me: I know, I’ll make a bendy hammer!
    Video: um
    Me: holy mother-- my toe!!!
    Video: oops...

    • Zapped Cannon
      Zapped Cannon 9 days ago

      +haselni thanks, that is very interesting. It seems that they are more shock adsorbent, and although I don't think they are the definition of compliant, they are very close.

    • haselni
      haselni 9 days ago

      Dead blow hammers are compliant, I believe.

  • EatableGaming & More

    1:37 look at the background