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



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लिंक लोड हो रहा है.....

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मेरी संगीतसूची
बाद में देखना
टिप्पणियाँ 4 471
Michael Frymus
Michael Frymus 3 मिनट पहले
this was interesting. Simple stuff when you think about it
Spadez Youtube
Spadez Youtube 4 मिनट पहले
damn only if my straightener were bent
M Anderson
M Anderson 7 मिनट पहले
I've had a IN-vid account for many years now and never comment. This is probably one of my Top 5 favorite videos of all time!
NochSoEinKaddiFan 12 मिनट पहले
As an upcoming engineer I have found something to add to my toolbelt, thank you so much for pointing me to that idea!
Johnny D
Johnny D 17 मिनट पहले
Compliant mechanisms look like the next scientific advancement. Truly amazing, sometimes we chemically design a new material that minimizes cost, and this time someone developed a mechanism that can minimize the amount of moving parts significantly reducing cost.
OmniaLicita 18 मिनट पहले
Looking for the "yay, more plastic!" comment.....can anyone show me the way ?
mihajlo olujic
mihajlo olujic 21 मिनट पहले
Adolf Furrer would love this ! ( Anyone who gets this joke can consider himself a high level gun nerd)
infideldog13 23 मिनट पहले
Genuinely fascinating. Makes you wonder why this isn't the dominant type of mechanism in so many applications.
6EN 32 मिनट पहले
yeah sure police heli for someone breakin in a house. gg 10/10 lie sklls
P Bebnowski
P Bebnowski 36 मिनट पहले
This is actually amazing.. i don't know why it took me a week to get to this... honestly you need to start doing click bait titles lol jk
DeleteriousDan 47 मिनट पहले
Why aren't our action figures made from these?!
Thomas Kundera
Thomas Kundera 48 मिनट पहले
Whatever he did, fact that he accepted to work on anything related to nuclear weapons, made me lost all interest for him and your video.
Cawfee Dawg
Cawfee Dawg 56 मिनट पहले
You are almost there! Make them self healing and capable of reproducing themselves.
andybaldman घंटे पहले
*The silicon ones were called MEMS when they came out years ago.*
BozanicJosip घंटे पहले
@6:55 showing him subtle middle finger
Daniel Mendez
Daniel Mendez घंटे पहले
I wonder: how a fatigue testing machine is tested for fatigue?
andybaldman घंटे पहले
*Why is this news or science? Things have been flexing since forever (and plastics).*
WHIT3B0OY घंटे पहले
imagine building a watch mechanism with one piece that is the future
Anthony Bastian
Anthony Bastian घंटे पहले
Im sorry i dont understand why bendy tools are so interesting? Ive been using flexible tools for decades
elcarmi घंटे पहले
No shoutout to Destin for the style of video? 😧
Vega 128
Vega 128 घंटे पहले
i cant wait for compliant mecanisms to be used for micro relays
nope noway
nope noway घंटे पहले
Not sure if comparing that plastic, pinchy, thingy to a pair of vice grips was a good choice.
Alucard Pawpad
Alucard Pawpad घंटे पहले
coulda done well to explain how exactly that last piece is predictable, or withstands earthquake/vibrations to prevent arming. Oh well. A powerful spring detent that requries substantial intentional force would've been enough I reckon.
Jesse Finnerty
Jesse Finnerty घंटे पहले
Bender would agree with the name of this video.
zwz • zdenek
zwz • zdenek घंटे पहले
These things get used all the time, but they aren't that great in practice. They wear where they meet the "traditional" parts.
Beetle house brews
Beetle house brews घंटे पहले
is it really solid titanium if it has been 3d printed? i would assume most of the flex would be coming from the layering, so this means it would need to be printed on a particular axis to achieve the desired flex. let me know your thoughts
Leo H
Leo H घंटे पहले
fireoil 2 घंटे पहले
very sexualized position looks of that thumnail lol
Joshua Alfred
Joshua Alfred 2 घंटे पहले
This is so incredible. Mind officially blown.
Carbon Paw
Carbon Paw 2 घंटे पहले
"What do" stopped watching right there
Michał Chyliński
Michał Chyliński 2 घंटे पहले
Some people are so clever! Amazing!
MWSin1 2 घंटे पहले
Machines that have one part, yet somehow have five moving parts.
Microwave 2 घंटे पहले
Gotta love a youtuber who knows the right way to drop a sponsor at the end instead of forcing it on people!
Ethan Westerburg
Ethan Westerburg 2 घंटे पहले
IN-vid, ive already watched it please stop putting it in my recommended
Joshua McClure
Joshua McClure 2 घंटे पहले
Great video!! So intriguing.
Al Deliss
Al Deliss 2 घंटे पहले
combine this with that custom grown fungus stuff and u have a product
Max S
Max S 2 घंटे पहले
It's mindboggling how massive of a change in technology 3D printing has brought us. A single piece mechanism that can be operated using two motors to swivel a thruster around a complete half orb? That's insane.
Anshul Jain
Anshul Jain 2 घंटे पहले
Allexz 2 घंटे पहले
This was a totally new concept to me. Amazing video! Thank you!
pav 997
pav 997 3 घंटे पहले
Technical Question. First of all pardon my bad english. Speaking of the metal clutch. Those small bendybits are therefore in permanent "stress" . In german it´s called "Ermüdungsbruch", google says it´s fatigue fracture. When you bend a piece of metal back and forth it will break, pretty fast aktually. Does this not allsow apply here ?
Seven Proxies
Seven Proxies 3 घंटे पहले
The machines that bend tell machines that don't bend: "Kiss my shiny metal ass"
Schaddn 3 घंटे पहले
okay, youtube, I'll watch it
JordyB 3 घंटे पहले
You probably won't read this anyway, but I really enjoy your videos but I wish you would address the people in your videos more than you address your audience (the camera.) Sometimes you cut off people and they are visibly not super happy with how you are conversating with them and it takes away from the video a lot for me. But really cool video! I never thought this kind of stuff would be interesting to me.
Flow Em
Flow Em 3 घंटे पहले
this is pretty cool, i don't say that often
Billy Sasterd
Billy Sasterd 3 घंटे पहले
that was a really cool video, thank you for doing the research!
Bas van der Zwet
Bas van der Zwet 3 घंटे पहले
are they: BENTER?
Travels World
Travels World 3 घंटे पहले
Very interesting technology.
The Grimp
The Grimp 3 घंटे पहले
The physics are cool, but the enthusiasm for nuclear weapons is a bit of a turn-off.
Daring Darius
Daring Darius 3 घंटे पहले
what the fuk *brain explodes*
Shaneequa Naynay
Shaneequa Naynay 3 घंटे पहले
I really don't like the way you look lol
Run 3 घंटे पहले
At 10:52, 72 Hz is equivalent to 72 revs / s instead of 2, right?
Run 3 घंटे पहले
Unless you're referring to 72 rad / s, in which case it's equivalent to roughly 11.45 revs / s ... for 2 revs / s, 1 Hz ~ 10 degrees / s which is very atypical
Freigeist 20789
Freigeist 20789 3 घंटे पहले
These are glorified springs, which will wear and can break sooner or later.
Josue R
Josue R 3 घंटे पहले
Bender Bending Rodriguez approves
GhostlyTeehee 3 घंटे पहले
how do they not snap?
Oli Infamous
Oli Infamous 3 घंटे पहले
This is Mind-blowing
mohamed jameel
mohamed jameel 4 घंटे पहले
Mind blown and i want to work and make some of these things. I think ill buy the book
Alainpbat 4 घंटे पहले
But I don't understand how those materials don't break. I thought applying force for an object under high tension would wear the object severely.
Todd 200 Endings Howard
Todd 200 Endings Howard 4 घंटे पहले
how about a floppy hammer?
Ahri 4 घंटे पहले
I'm intrigued! It's been a while since my curiosity been spiked. Subscribed!
Jeroen de jong
Jeroen de jong 4 घंटे पहले
Look at the new escapement of watchmaker Girard Perregaux or the new Zenith watches. The swiss have been working with this for a decade.
Timmo Warner
Timmo Warner 4 घंटे पहले
This demonstrates one of my favourite things in life: No matter how old I get I will still encounter things I had never heard of or even imagined existed.
Bob Jimenez
Bob Jimenez 5 घंटे पहले
flexibility with flexible constraints.....endless manipulation is possible.....viola: the rubber band.
Ree man
Ree man 5 घंटे पहले
He sounds kinda like mayor West
D K 5 घंटे पहले
Why didn't you ask him how long the clutch would last? Is that better/worse than current clutch products? Also, I still don't really understand what the arming device does. If you had a better animation it would have helped me understand it.
Linnea westberg
Linnea westberg 5 घंटे पहले
sooo cooollll!
furripupau 5 घंटे पहले
Leslie Hounsfield designed the engine in his Trojan automobile with with a flexible connecting rod, because in his own mind this was "mechanically correct". I always thought this was funny. The engine was a duplex 2-stroke with two pistons on a Y shaped connecting rod, two small ends for the twin pistons with a common big end. Later copies of this design used a jointed connecting rod, increasing mechanical complexity, manufacturing complexity, weight, etc. Hounsfield's flexible connecting rod seemed like a compromise by conventional wisdom, but he was right - it is "mechanically correct".
FunkmasterRick 5 घंटे पहले
Wait, your neighbour's house got broken into and there was a police helicopter to respond? What kind of ridiculous rich neighbourhood do you live in? I'd be lucky if a car showed up within two hours.
AscendtionArc 5 घंटे पहले
Very cool to see.
Karg Bear
Karg Bear 5 घंटे पहले
Question: Doesn't bending material wear out the actuation point faster?
Sid Ho
Sid Ho 5 घंटे पहले
Derek looks like Elon Musk
Luan Cavalcanti
Luan Cavalcanti 5 घंटे पहले
Otimo video. Parabéns!
IamGravel 6 घंटे पहले
at first i read machines that blend. Reminds me of the Will it Blend videos from years ago
Kai Schoneweis
Kai Schoneweis 6 घंटे पहले
Are you kidding? I could bend a girder to any angle - thirty degrees, thirty-two degrees... thirty-one... but I couldn't go on living once I found out what they were for.
Craze Dhark
Craze Dhark 6 घंटे पहले
3am rn, this was on my recommended. I know. I dont know what going on with my life
oisiaa 6 घंटे पहले
Ummmmm......nuclear secrets in a IN-vid video?? Just because he "doesn't know" if it's being used, this could be extremely sensitive technology.
jwgmail 6 घंटे पहले
centrifugal clutches are used in most scooters. on a motorcycle you shift gears.
Quinn Reynolds
Quinn Reynolds 6 घंटे पहले
Why don’t more people use those plastic vice grips?
aymon verheij
aymon verheij 6 घंटे पहले
Ah 6 घंटे पहले
i really wanted to watch this cus the topic seemed interesting but your commentary and narration is so bad, and its extremely annoying how you kept interrupting the dude you were interviewing basically.
kopiledon 6 घंटे पहले
Rocket scientist pfffffft! Compliant mechanism engineer rules.
Definitive Gaming
Definitive Gaming 6 घंटे पहले
Wait, so you’re telling me that nukes don’t have a do not disturb?
Colin MacKenzie
Colin MacKenzie 6 घंटे पहले
OMG!!!!! I am so onto this Thank You Thank You Thank You for giving me the means to help a friend
jeddak 6 घंटे पहले
Amazing. Fantastic technology.
Laurence Bell
Laurence Bell 6 घंटे पहले
5:55 "...and requires lubricant."
Poachedshell 6 घंटे पहले
i guess the ipad pro is good
Abbreviated Reviews
Abbreviated Reviews 7 घंटे पहले
I was thinking the whole time how I'd like to 3D print some of this stuff and then he's like "here you can print these and PLA". Awesome.
Eman Mann
Eman Mann 7 घंटे पहले
Very commonly used on cheaper musical keyboards, replacing the separate hinge and spring found in the traditional mechanical design. In this case each octave can be molded as two seperate black vs. white key assemblies.
learners learners
learners learners 7 घंटे पहले
Bend it like
Marco Aurélio Lima do Nascimento Junior
Marco Aurélio Lima do Nascimento Junior 7 घंटे पहले
wow that is pretty awesome!!
Fresh guac
Fresh guac 7 घंटे पहले
what about metal fatigue
Entropy Spawn
Entropy Spawn 7 घंटे पहले
Hi, V-Sauce wannabe, this was actually a cool video, but, maybe next time don't lean so hard on youtube's recommendation system maybe?
Joshua Keddie
Joshua Keddie 7 घंटे पहले
This new Aphex Twin song is great
Pedro Silveira
Pedro Silveira 7 घंटे पहले
aren't this machines more exposet to fatigue rupture?
Jesse Grossbohlin
Jesse Grossbohlin 7 घंटे पहले
This is so cool.
Captainllama 7 घंटे पहले
#6 Proportions. No. The *_dimensions_* are reduced. But it's not a "p".
hentai nat
hentai nat 7 घंटे पहले
I need a reality check, these are too trippy.
Antonio Garofalo
Antonio Garofalo 8 घंटे पहले
even protein structure is flexible and one can consider a protein a tiny compliant machine. evolution selected this kind of machines for the advantages you have mentioned. easy to build/synthetize, "low price" in term of atoms, performance
iKillborn2kilNOE 8 घंटे पहले
"My friend" physics girl hmmm😏
Billy Joe
Billy Joe 8 घंटे पहले
Looks like youtube doesn't mind abstract pornography :)
Mark Maurer
Mark Maurer 8 घंटे पहले
Umm, if a break in is getting a police helicopter, you should probably move. If not to get away from the insane criminals you need a helicopter to stop, then to get away from the super militarized police.
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