Why Machines That Bend Are Better

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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



12-Mar, 2019



Yuklab olish:


Saqlab olish:

Mening pleylistlarim
Keyinroq ko‘rish
Fikrlar 4 744
boxoflostcauses 17 daqiqa oldin
This was so freaking cool man, I love this channel so much
Ashwin Jain
Ashwin Jain 37 daqiqa oldin
doesnt these bending parts undergo elastic fatigue over a period of usage time?
jesus perez
jesus perez 41 daqiqa oldin
I just graduated and my lessons on mechanical engineering are worthless now, great
Fallenangel 85
Fallenangel 85 49 daqiqa oldin
I found a big P that's a disadvantage: PLASTIC!
Lukas Hahn
Lukas Hahn 52 daqiqa oldin
His first mechanism looks like the Aphex Twin logo :D
Lucas Richard Stephens
Great field! Many buildings have been using flexibility as a design positive for centuries, nice to see engineers working with these natural design complexities, hope they keep an eye on the big picture too.
Benjamin Bennett
Benjamin Bennett Soat oldin
Sorry this professor is not honestly comparing to other methods. 1 million cycles of car engine at highway speeds takes 6.6 hours of driving. Imagine if you engine failed every 6-7 hours.Elephant one was to easy to see it wasn't going to move in the x-y, Not impressed at all.
Jeremy C Barnhart
Can they be / Are they affected by temperatures?
Jeremy C Barnhart
LARRY!!!! OH MAN! Love this guy!
Jeremiah Dauphinais
Jeremiah Dauphinais 2 soat oldin
You and your team are killin' it!
danielthesantos 3 soat oldin
Why the F*** is a top notch mechanical engineer saying "nucUlar"? WTF!? This is not an alternate pronunciation, it is a corruption, pure and simple! This, my friends, is the end of the world.
Riot4Peace 3 soat oldin
11:55 ? ... Police helicopters don't circle overhead for someone breaking into a house... The government is watching you.
McAmber 4 soat oldin
well this is interesting..
zawa 4 soat oldin
jonathanmellqvist2 4 soat oldin
That Simplisafe.. Super safe, super simple and super no privacy at home at all. Perhaps a new kind of "home made tapes" is coming up too!
Hajar Renate Midbrød
Looks like two plastic spoons having missionary position sex LOL
Dunc M
Dunc M 4 soat oldin
Flexible machines from flexible minds. A most interesting video. Thanks for posting.
linglingjr 4 soat oldin
The way this guy presents himself during the first 21 seconds of this video is all by itself enough for me not to like him.
Jason Bedillion
Jason Bedillion 4 soat oldin
Bender Bending Rodriguez approves of this video.
Andrew Mooney
Andrew Mooney 4 soat oldin
Those damn Mormons are tricky
Shashank Rajesh
Shashank Rajesh 5 soat oldin
This is some of the coolest stuff I've ever seen.
earth meme
earth meme 5 soat oldin
Bender "Bending" Rodrigez
NeoRipshaft 5 soat oldin
This is super neat and all, but you didn't address at all the one burning question - fatigue! How the heck do these applications interact with material fatigue!? I mean presumably we all know how to bend spoons, or failing that, coat hangars - I'm sure he has answers to all of our burning questions about the various applications - ahhhh now I'm going to have to check the literature on this, though I'm guessing more viewers don't have access to journals or know to look there - so cmon man don't leave us hanging!
Ahmad Alqasimi
Ahmad Alqasimi 6 soat oldin
I met him in person, amazing professor. My PhD is based on his book and he was my professor's professor. It was an honor
StYxXx 6 soat oldin
Uh this was more like a huge advertising. It didn't address any disadvantages. What about repairing something? You can't replace a screw. But more important: What about aging? Plastic can get recalcitrant (ist this the right word?) and get micro-cracks. Yes they said they did 1 mio cycles with one element but was this verified by a neutral third party? Also you can't just randomly scale an element since it's behavior will change. So this might be interesting for some cases but the video presented it as the best thing for every case and without any scientific scepticism. But as a scientist you shouldn't be fanboying something so easily. About the satellite thrusters: This whole element was superfluous. There were two motors. You can already archive the movement with just two motors, no need for flexible parts. Actually they just provide another potential point of failure. Especially in space you want to avoid that. That's why they prefer a second thruster (also this provides redundancy). Also space is pretty bad for plastics. So this example was pretty bizarre (to say it mildly).
Ice cube Island
Ice cube Island 7 soat oldin
The device that writes BYU definitely stands for Brigham Young University. (should be obvious)
RARE ONLY 7 soat oldin
Bender from futurama would be proud.
Eliot Francis
Eliot Francis 7 soat oldin
Thanks for posting this very educational video.
=NolePtr 7 soat oldin
Sponsored by Bender Bending Rodriguez
jl smith
jl smith 7 soat oldin
So cool! That was mostly about the micro applications. What about the macro? Lift a bridge or a car?
Oborowatabinost 7 soat oldin
I would like to see a combustion engine rotor or piston made with this concept!
譚睿哲 7 soat oldin
Weird flexible machine !
Alex Sinclair
Alex Sinclair 7 soat oldin
Makes sense, many of our moving parts bend.
An Anna
An Anna 8 soat oldin
I seriously doubt the police are going to deploy a helicopter costing $$$$ on the report of a home break in. They do next to nothing if you report goods stolen. More than likely, they were looking for marijuana grow light signatures. A prosecution for drug production is big bucks $$$ to them.
Chris Ho
Chris Ho 8 soat oldin
SimpliSafe, you are telling me people are watching me for my safety ?
gun wheat
gun wheat 8 soat oldin
Flexible, efficient, and sturdy; wow, that' s new age mechanics. I wonder what if the professor is given charge of designing AI robotics, he may just transform the field. As usual thanks for marketing science and engineering, among other things ! Cheers!
Michael Kennedy
Michael Kennedy 8 soat oldin
You know what else bends? A catapult, but it's inferior compared to the superior seige engine- the trebuchet which can launch a 90kg projectile 300m away.
Dimitar Yotsov
Dimitar Yotsov 9 soat oldin
he looks like elon musk but downgraded
Steven Wilkinson
Steven Wilkinson 9 soat oldin
Haven't centrifugal clutches already been around for a while?
S. McO
S. McO 9 soat oldin
Amazing stuff, but when they talked about the NASA thruster engines it blew my mind.
Wendy Meng
Wendy Meng 10 soat oldin
That’s sooooo cool
Lettuce 10 soat oldin
Dang that's so interesting, This could be revolutionary!
BENRAO 10 soat oldin
This is actually so fascinating
Rowe Magnon
Rowe Magnon 11 soat oldin
What about deformations from heat?
Darrin Lalla
Darrin Lalla 11 soat oldin
Wow! You and Physics Girl belong in a category with Neill De Grasse Tyson and Carl Segan! You keep it fun!
Oliver. R Evans
Oliver. R Evans 11 soat oldin
So good
JasonVladimir 11 soat oldin
Pretty cool!
RagHelen 12 soat oldin
Bringing gifts to the Physic's girl, ha?
13Omega37 12 soat oldin
Super interesting to me as a Mechanical Engineer! How do they come up with the designs, though? That would be my biggest question.
Okiki Ojo
Okiki Ojo 12 soat oldin
Is there a way I could get the stl file for the vice grips so that I could 3D print that? Or at least a drawing/dimensions so that I could make and test it out?
J R 2 soat oldin
I don't think 3D would work for those fine parts. Maybe plastic injection (done right. Not China style)
rob kev
rob kev 12 soat oldin
11:48 Hey, Vsauce, Micheal here
Jack Kraken
Jack Kraken 12 soat oldin
Skynet: We'll keep you around. You seem useful.
PhonyPhoner 12 soat oldin
its an interesting video about this company. i would have liked tho, if they would have not worked on anything like nuclear weapons..
Frank Fripp
Frank Fripp 12 soat oldin
There youtube, I watched it
gamerguy1221 AkA redstone genius
*compliant guns*
banescar 12 soat oldin
I don't get how the machine on the table is related to the machine in the video. Also, how is the machine in the video powered. And are those hinges?
Marc Smithsonian
Marc Smithsonian 12 soat oldin
Brilliant! Can you use it to make mechanical watch outperforming swiss ones ? That would be big triumph of USA engineering.
Ray Denius Jr
Ray Denius Jr 13 soat oldin
reminiscent of that "smartereveryday" video guy just a bit different
Mud-Lust 13 soat oldin
I'm flexible
PLEXER 13 13 soat oldin
But what about the durability on the bendy spots? I assume some parts and places on parts need to be thinner, or smaller in order to make them bend easier
Glenn Mrosek
Glenn Mrosek 13 soat oldin
This title is misleading. I was expecting a Futurama special.
MrJacon95 14 soat oldin
Find the prusa
Dominykas Blužas
Dominykas Blužas 14 soat oldin
knock off elon musk lookin ass
F.u.c.k Go.ogl.e
F.u.c.k Go.ogl.e 14 soat oldin
problem with things that bend, is that over time they will break. chekm8 boi
F.u.c.k Go.ogl.e
F.u.c.k Go.ogl.e 14 soat oldin
much quicker than things that dont bend, shoulda elaborated. chekm8 meselft
Fak Juu
Fak Juu 14 soat oldin
sooo coooooool!!
CubeShapedTom 14 soat oldin
Am I the only one who thinks the thumbnail picture looks like a couple doing it missionary?
Beston Mawarire
Beston Mawarire 15 soat oldin
Spammed my recommended list
lowlowlow ok
lowlowlow ok 15 soat oldin
sexualkunde startet übrigens bei min 5:35
Jesus Christ
Jesus Christ 15 soat oldin
why is this in my recommendation?
liquidalloy 15 soat oldin
Damn, this hurt my brain. Great video
Alphabet Man
Alphabet Man 15 soat oldin
Bender, meet your monoinstrumental ancestors.
jugganaut33 15 soat oldin
Each day we get closer to Mjolnir armour.
Magnus Juul
Magnus Juul 15 soat oldin
Nice video! :)
Michael McFearin
Michael McFearin 15 soat oldin
That was wonderful, what a great first video to find the channel with!
LandOfTheEast 15 soat oldin
This is genuinely one of the best UZvid videos I've ever watched. Arguably the best
Oliver S.
Oliver S. 16 soat oldin
Bite my shiney metal ass!
FetchQuestAssigner 4432
This video brought to you by Bender. Bender,telling ppl to bite his shiny metal ass since 1999.
Thomas Hinds
Thomas Hinds 16 soat oldin
Thumbnail - Aphex Twin
timothy romano
timothy romano 16 soat oldin
That was awesome
Tomo 16 soat oldin
12:49 Reversed Vsauce.
Voltaic Fire
Voltaic Fire 16 soat oldin
Think of all the things you can 3D print with these clever designs.
snwboardn21 16 soat oldin
I was hoping you would have talked about metal fatigue. I mean plastic sure, but steel? What about inserting thread (carbon fiber) in the mold, kind of like rebar to give the metal even more strength at the bend point?
Kirxas 16 soat oldin
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
Layne Campbell
Layne Campbell 17 soat oldin
this is a great episode, super interesting, the chainsaw clutch was fantastic. I wonder about fatigue on many of the designs.
DominicFalcon 17 soat oldin
It's fascinating that "live hinges" which are typically maligned when creating moving mechanisms are becoming more and more acceptable. On the flip side, I've had such microscopic compliant mechanisms fail before (an accelerometer on a quadcopter), and fail in rather unpredictable fashion.
IgneousGorilla 17 soat oldin
The Elon Musk of bendy bois
Each Day
Each Day 17 soat oldin
So... paperclips
Howard Kleger
Howard Kleger 17 soat oldin
The elephant display holds the secret to flexible components. I think it's core is reverse engineering. Personally, I think the next big maneuver will be an efficient way to dispose of garbage, such as basic pollutants uzvid.com/video/video-0fw4OoTdHoc.html
Karthick Ashwath
Karthick Ashwath 17 soat oldin
I am still not convinced how it lasts that long(a million cycles)
RogueRAZR 17 soat oldin
I kinda wish you would have explained some of the pitfalls of this technology rather than just benefits. It makes this systems sound like there are no downsides. However these systems have many challenges and are not the end all solution.
david kowalkowski
david kowalkowski 17 soat oldin
then it goes "Behind the fence" and then we don't know. LoL sound like a conversation between 2 nosey neighbors.
BadAssEngineering 17 soat oldin
Who will win? Veritasium´s finger or one bendi boi ?
CaptainMarci104 17 soat oldin
Bender from Futurama likes this video.
ASBO Rider
ASBO Rider 17 soat oldin
NotTheWheel 18 soat oldin
Bending is very handy for some mechanisms. I'd assume that tension and even the starting and resting point being dislodged could be an issue.. but I'm not an Aerospace engineer.... any you Egg heads got an opinion on it?
Daniel P.
Daniel P. 18 soat oldin
Ok but physics girl and veritassium would be an incredible couple
Chris White
Chris White 18 soat oldin
Loved the blatant surveillance ad at at the end.
Ninjaman195 18 soat oldin
I thought this was a spoof on Futurama when i clicked on it
Andrew Ivey
Andrew Ivey 18 soat oldin
Well, if the physicist couldn't figure out how the trunk was gonna move, I don't feel so bad for not getting it either lol
Itsiwhatitsi 18 soat oldin
This episode is flexin more than Lil Pump teachin science
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