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
  • Source: https://youtu.be/97t7Xj_iBv0


  • Meg.A. Byte

     (Mar 12, 2019)

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

  • Pianissimo Fortissimo

     (20 hours ago)

    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

     (2 days ago)

    Weird flex, but okay.

  • Potatoes Have 48 Chromosomes

     (4 hours ago)

    +Zimmit's Fabulous Wonder Hoagies i don't watch rick and morty, im also a bigger fan of south park, it's just that dude was full of himself.

  • Zimmit's Fabulous Wonder Hoagies

     (5 hours ago)

    I'm not ashamed to say I didn't get Level 2 of this at first. Which seems like it would be obvious Level 1. Ha ha ha right on man, good one.

  • saurabh pandey

     (3 days ago)

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

  • William Barnes

     (1 hour ago)

    Apple products are always a joke.

  • Khason01

     (3 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 :)

  • Creamy Ocean

     (15 hours ago)

    +you2tooyou2too That's basically just "Portable" which he added

  • James Morris

     (21 hours ago)

    +Ginko are you insinuating if your vice grips break, you search ebay for the broken piece to replace or do you buy a new vice grip like the rest of normal society?

  • Rumford Chimpenstein

     (4 days ago)

    "SO THIS IS ACTUALLY BEING USED ON NUCLEAR WEAPONS RIGHT NOW?""... maybe, I don't know. probably no-""--THAT'S AMAZING, AND YOU'RE SAYING THIS CLUTCH SPINS?!""well yes, all clutches spi--""--INCREDIBLE. AND THIS METAL BENDS?!""-- most thin metal bends, including titanium, which is--""--AND THIS ONE'S BEEN IN SPACE?!"

  • Fred Raybould

     (1 day ago)

    I noticed it as well, constantly interrupting the guy he's interviewing in order to tell the camera what the guy is about to say.

  • Just Toolleeow

     (1 day ago)

    +EagleScoutmano you missed a couple of small but important details in my sentence.

  • Jacob McKissock

     (3 days ago)

    I mean, I knew the future was gonna be crazy but now I know that a few dozen decades in the future are gonna make the late 1990's look prehistoric.

  • Zimmit's Fabulous Wonder Hoagies

     (5 hours ago)

    +True Flameslinger yup. Thats why scientific advancements can follow an exponential path. Advancements beget advancements. Its still weird to think computers are only 70 years old, common cars, about 120. Lasers, 30. Uh, internal birth control about 60.

  • True Flameslinger

     (2 days ago)

    +Faust Von Barley Indeed. And these advancements allow us to make more advancements faster

  • CF1001

     (3 days ago)

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

  • Quell Ious

     (3 hours ago)

    You have to bait them out with a hot pocket.

  • DJ BIS

     (7 hours ago)

    lmao! good eye.

  • Nathan Masters

     (3 days ago)

    Larry was my Masters Thesis advisor--he is one of the great people I have known in my life. Compliant mechanisms are very cool. Thank you for posting this video-love your channel. For any who have not seen it, you should check out the Nova episode "The Origami Revolution"--which covers more BYU Compliant Mechanisms research--with origami.

  • Alex McCabe

     (1 day ago)

    Once these are self repairing (somehow) we basically simulate biological machinery

  • Alexander Richter

     (3 days ago)

    Alright youtube I watched it!

  • Tim Galos

     (3 hours ago)

    lol, same. But you could click the three dots and choose 'not interested'

  • Vinayak ‍

     (17 hours ago)

    Yeah YouTube, let's just get it over with. What's free will anyway.

  • Rae S

     (Mar 12, 2019)

    "It turns out they don't tell us what they do with their nuclear weapons"[Professor smiles]

  • Rowe Magnon

     (3 hours ago)

    Why would they? Want to publish to the world (friend and foe alike) where all the nuclear weapons are and what the military does with them?

  • ståle starheim

     (6 hours ago)

    basicly if they dont need to make more prototypes for a certain task the army says "yup that's it now we dont need you'r help anymore and we might not even use it" which is a werry obvious way to say they use it xD