Why do the Strongest Parts Look Like This?

Wesley Kagan
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I've wanted to do the history of topology optimization for a while, so here goes! Back to the regularly scheduled content after the move.
Thanks for watching!

And as always, My social media:

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Website: www.wesleykagan.com

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1 Nis 2023




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Wesley Kagan
Wesley Kagan Yıl önce
The fan broke again
Arnav Rawat
Arnav Rawat Aylar önce
@Paul Jones the all fan
Arnav Rawat
Arnav Rawat Aylar önce
Bill Killernic
Bill Killernic Aylar önce
Oh come on ok nobody said to make a series of lectures for an engineering degree but you surely could enrich this video with more details and trivia and make it a 20 to 30 minute one... in 9 minutes I didnt even finish my cereal ! :P
DaddyFatsack Aylar önce
Just kidding. Great video!
Napalm Holocaust
Napalm Holocaust Yıl önce
When I have to stack books on the floor, I make seriously sure one on dif. equations is on the bottom, in case of a flood. I consider this topographic optimization.
Bill Kong
Bill Kong Aylar önce
Daniel Beckett
Daniel Beckett Aylar önce
rofl mao
jane m f arc
jane m f arc Aylar önce
Weird, I keep the study bibles and concordance on the bottom.
Alberto Bernal
Alberto Bernal Yıl önce
why no love for diff. eqs?: The power of rates of change at your fingertips!!! I think Thanos' cavity search handwear had a related pebble. /s
mustangkraft505 Yıl önce
Hahaha that’s a heck in good joke
Mattsoup Yıl önce
I'm an engineer in aerospace and topology optimization + good metal additive manufacturing is a game changer for some applications. There are dozens of assemblies on rockets and rocket engines that can be reduced to 10% or less of the part count. Anyway, this was a good quick overview. It's good when people learn about things they won't necessarily use but are becoming a big deal in industry
Mattsoup 25 gün önce
@Mike Clarke this is accounted for in structural margins
Mike Clarke
Mike Clarke 25 gün önce
One problem today seen in more modern structural systems, is before would over engineer as could only be within a certain tolerance using primitive calculation methods and knowledge. AS we know more can can stretch things to more limits, we end up stretching things to "The" Limit and sometimes we need more tolerance to absorb the extra stresses times when things may go beyond limits, aircraft, rockets, etc when the unexpected is encountered. Sometimes less is not good.
Diogenes Pepsi
Diogenes Pepsi Aylar önce
@carlos vargas Not a big cost for the aerospace industry.
ba doem
ba doem Aylar önce
@Mattsoup and if we'd start printing on the microscopic/quantum level? I know I'm thinking in the future and metal tend to become uniform in terms of their properties of existing when pressure (heat or force) Like forging is like smashing stuff together until the protons find their equilibrium (with metals at least) and just but what if we place the puzzle pieces where they need to be and after you heat treat it to solidify to further strengthen it. Or is brute force just better?
Mattsoup Aylar önce
@ba doem additively manufactured parts still need machined at the interfaces. Huge printers for making large parts are extremely expensive. Forged/rolled metal stock is stronger than additively manufactured material, even when heat treated.
vasyapupken Yıl önce
there is one big misconception about "strong" and "optimized". optimized geometry parts are not particularly strong. they have better weight/strength ratio, yes, for one particular load scenario which they are optimized for. "optimization" means that we leave only material which is necessary for carrying a particular load, removing all material making part weaker for other (unexpected) loads and therefore unreliable.
Greatclub Sandwich
Greatclub Sandwich Aylar önce
A cheetah is optimized for running, but want it to swim and it will die. A fish is optimized for swimming, but it can't run. A beaver can do both but neither that well.
Omar Goodman
Omar Goodman Aylar önce
"Given unlimited materials and budget, even a two year old can build a bridge across the Atlantic that could carry dinosaurs. Anyone can make a bridge or a building that stands. But it takes a structural engineer to make one that _barely_ stands." Before people knew how to engineer structures, the best solution they had was "overbuild the hell out of it." They'd guesstimate how much "building" or "bridge" they need to do the job, then fucktuple it. That's why older buildings are so "heavy" compared to modern ones. When modern framed houses first came into use, traditional builders laughed at the idea of such a "lightweight" building, and joked that they'd blow away in a strong enough wind.
Chris L
Chris L Aylar önce
I think people don't get that about engineering. Engineering is usually about finding the weakest possible design that is still sufficiently strong for the use while including after accounting for an appropriate margin for safety. A lot of the largest and most impressive feats of engineering wouldn't have been possible if they had to aim any higher with the technology and methods that were available at the time.
Saying N*igro Makes YouTube cry
@Stef Hirsch nice. By any chance do you have photos?
Stef Hirsch
Stef Hirsch Yıl önce
@Saying N*igro Makes TRvid cry it was also made with care and quality workmanship, the dropouts, linkage and such are machined with lots of detail… thus light and strong enough to withstand 21 years of use while being reasonably light. It also uses 26” wheels which allow the combination of the fork and front wheel to be shorter - which is effectively a lever. The chain/seat stays are also allow a cross brace which is also inherently more structurally more efficient. It has a 120mm fox vanilla rl on the bike.
Scott MacLean
Scott MacLean Yıl önce
I saw a powder coat spray head that looked bizarre. Like a machinist setup the CNC lathe wrong. But it was found to be the most efficient shape to minimize waste and speed the process. They found it by taking thousands of random designs, using computers to test them down to 10 then they made those 10 and tested them, and the one they thought would be among the worst was the best. It amazing that after all this time we still don't know what we don't know.
Tom Wright
Tom Wright Aylar önce
edinBERG 😂
jsquared1013 2 aylar önce
@Ben Sinor no simulation will ever be able to totally capture all of the variables of the real world. The one that they "thought would be the worst", they didn't expect it to be the worst because of the simulation results (which should be obvious, since it was among the 10 best of thousands), but rather because the one that performed well was so different from what they were used to seeing in the past, which were all developed from less-sophisticated means of simulation.
Ben Sinor
Ben Sinor Yıl önce
I hope they then changed their simulation parameters and retested the thousands.... if your real world results don't confirm the simulations then you did it wrong. There could very well be a design filtered out initially that is even better.
Landon Marchant
Landon Marchant Yıl önce
Could it be a super corona ring? I’ve done powder my whole life and that seems like a good description of it. Look it up and tell us if that’s it cus I’m also curious now lol
Saying N*igro Makes YouTube cry
I'd like to see it too
Nomad5d Yıl önce
I'm a mechanical engineer and have done a bit of FEA and top op over the years. This was a great description and enjoyed the reference to the 100+ year old paper describing the process. My boss and I like to point out that there are few new ideas. Eventually we just learn how to make the old ideas work well enough to be useful.
GoogleEqualsEvil Aylar önce
@Nick Leland I rarely have time to watch TRvid videos, much less to write comments. But after watching this video and looking through a few hundred comments, I was gravely disappointed by the amount of abject stupidity found in so many of them. So my response to you wasn't personal, nor did I intend for it to be rude. It just reflected all of the idiotic comments that I read, aggregated. Case in point, there is an absolutely moronic comment from someone claiming that optimized parts "aren't particularly strong" because material is removed to the point where they become weaker for "unexpected loads". Even worse, that comment has almost 400 likes! That is a patently absurd statement that no real engineer would make. That's a comment from (what's called today) a "maker". Someone that has access to 3D modeling tools, including optimization software, but doesn't understand the fundamentals of engineering. And that is dangerous. Computer software is a tool, not a replacement for knowledge and experience. If you don't understand the underlying fundamentals of what you're doing, then you're going to get specious results at best. Actual engineers consider ALL load cases while designing a component and / or assembly of components. Optimized components / assemblies are literally optimized for ALL of those cases. That's the point! And of course, for most engineers (those who work for someone else), there are numerous checks along the way in case they miss something (we're all human). They don't operate in a vacuum, they have a team of other engineers and dedicated analysts for stress / FEM / FEA, CFD, Multi-Physics, etc. Further, real engineers, especially those who are working on their own (inventing, consulting, etc), never rely solely on hand calculations and / or computer based analysis. They physically test prototypes and / or test articles to corroborate their various analyses. As a mechanical and structural engineer with over 30 years of experience, it's frustrating and sad to see so many comments on here that are completely divorced from reality. I suspect most of them are not made by actual engineers (people who earned a BSc in a field of engineering with a GPA of at least 3.0+), but some might be, and that is scary. It also reinforces that "makers" i.e. - fabricators, welders, machinists, computer operators / CAD technicians, etc. are NOT engineers!
Nick Leland
Nick Leland Aylar önce
@GoogleEqualsEvilFair enough but no reason to be rude about it. Rewatched the video and don’t know how I missed it 10 months ago. I work mainly with CFD components but I was working on a project regarding FEA and wanted to do some extra research. Appreciate the late reply.
GoogleEqualsEvil Aylar önce
@Nick Leland 1) The fact that you're asking that question makes me seriously doubt you'll be able to understand Michell's work. 2) It's a singular paper, not papers. 3) Watch the video again...if you still haven't figured it out, It's at 5:28 where he talks about A.G.M. Michell's paper that was published in 1904 in the "London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science". 4) Michell's paper provided the foundation for modern topology based optimization techniques.
Nick Leland
Nick Leland Yıl önce
Just curious, what 100+ year papers are you referring to? Would love to take a look at them for more information
canna roe
canna roe Yıl önce
Your boss lets you watch TRvid?! Now that's a new idea! :)
First Last
First Last Yıl önce
The heavy part broke at about 50 While the topologically optimized broke at 45 For 60% weight savings this is well worth it and another iteration where you try to strengthen the area that broke might move the weak point to the same location it was in the original part Even with a bit of added material 50% weight savings with the same breaking point both at 50 kg or 50lbs is beyond amazing
megapet777 Aylar önce
@First Last That would be so cool if motorcycle frames would have some insane topology optimization. Even less weight and it would look awesome. But it better be strong :D
D de waard
D de waard Yıl önce
@Steve Lowe I suppose if you want the frame to still be made of steel tubes just optimised and not going the crazy carbon fiber route like discussed in this thread, you could use the topology optimisation by determining the cross sectional area of the struts generated and with a good understanding of the forces on that beam and how that area would translate into the desired cross-sectional shape (tube), you might be able to optimise the individual struts of the frame when it comes to diameter and wall thickness. also the topology optimisation would show where to place the tubes. of course this would then require validation by means of of other calculation methods as things like buckling are very different for different cross sections This is just the idea that pops into my head. I might be wrong here and am open to discussion as I'd like to learn.
jonathanrabbitt Yıl önce
@ttttt Only most commercial aeroplanes...
First Last
First Last Yıl önce
@ttttt because it easier for mass production But still good regidity to weight Having front and rear subframe structures as cf makes it very difficult to fix also in case of a crash or any accident and much more expensive even when could be fixed This is as close as they can do it production wise... maybe in the future
ttttt Yıl önce
@First Last yes but car bodies aren't true monocoque structures because the pillars and subframe rails are all box beams and take the majority of the loads. The rest of the skin just fills in the gaps and has very little strength or rigidity.
Emyr Derfel
Emyr Derfel Yıl önce
If Königsberg is hard to pronounce, you could call it Kaliningrad, its name since 1946. It also spent 200 years as Królewiec in the Kingdom of Poland.
Scruffy Yıl önce
Fun fact. Königsberg means as much as Kings mountain .
Toby Clark
Toby Clark Yıl önce
@Wesley Kagan By the way, Edinburgh is pronounced 'Ed-in-bruh'. Really interesting video - thanks!
Wesley Kagan
Wesley Kagan Yıl önce
Very true. I felt it was good to keep Konigsberg for simplicity, although I don't do well with pronunciation.
Michael Zumpano
Michael Zumpano Yıl önce
You really hit this from a different angle. I loved the fact that you gave us the historical context and motivations.
Wesley Kagan
Wesley Kagan Yıl önce
I appreciate it, thanks!
Darío Enrique Mercado Santiago
Love this introduction to topology optimization. It had been a while since I've looked into it. It's surprising how much matter is wasted on commonly designed parts, I for one would love to see more topologically optimized designs.
Wesley Kagan
Wesley Kagan Yıl önce
Thanks! I agree, as it becomes more viable for local solutions, i.e cloud based or not needing a week to run a study, I feel it will become a basic design step.
Delty Aylar önce
Just discovered your channel. Your seamless mix of deadpan comedy and scientific explanations delivered in a way that even a simpleton like me could understand was very refreshing. Subbed
Joe Yıl önce
The things solidworks is capable of constantly blows my mind
802 Garage
802 Garage Yıl önce
It's when I try to think of the countless hours of programming and testing that went into it that my brain really fries.
Wesley Kagan
Wesley Kagan Yıl önce
It's pretty impressive.
Rocketplane Yıl önce
Came for the engineering and tinkering, stayed for the sense of humor. Loving the videos!
Wesley Kagan
Wesley Kagan Yıl önce
Charles Van Noland
Great vid. Just an FYI, "Euler" is pronounced "oiler" rather than "yewler" - I didn't find out myself until after maybe a decade of saying "yewler". :P
Abyss Strider
Abyss Strider Aylar önce
@AAA AAA Stimmt, wenn du andere Sprache lernst. Dann wird es leichter neue dinge zu erinneren.
Abyss Strider
Abyss Strider Aylar önce
@XDSDDLord It's a German name using German spelling.
Chris L
Chris L Aylar önce
@ElvianEmpire It's an eternal struggle to figure out which names and words need to be kept original and which ones can be adopted with the local language's pronunciation. And sometimes, the spelling is just changed so that the two are closer together than they would seem.
ngiorgos Aylar önce
@ElvianEmpire as a non-native english speaker, I need to mention that english does not care about proper pronounciation either. We just get used to this mess
Luca Gattoni-Celli
These videos are hidden gems and you should keep making them.
davidsirmons Yıl önce
As a layman, I nonetheless found this fascinating. Thank you.
Denis Kissyellow
Denis Kissyellow Aylar önce
I'm not an engineer, but interested in cars and bikes. And I want to thank you for such a compact and surely a lot simplificated explanation of topology optimisation! This is awesome and what is peculiar about it is that it looks so bio and close to something created by nature) Cool! Big up and sub! Thank you giving content that internet was originally made for)
GregGuitarist98 Yıl önce
i dropped out of school for engineering when covid hit, but i love that you explain this enough where I can wrap my mind around it
Tyler Adams
Tyler Adams Yıl önce
He's doing everything I wanted to do... generative design, active suspension, active aero, freevalve tech... all homologated into a technological marvel (I'm glad to see someone with the knowledge to do so)
Julian Foley
Julian Foley Yıl önce
Brilliant explanation - clear, witty and comprehensive. You should apply for the job of my Engineering professor. I'll see if I can arrange his early retirement.
E Razn
E Razn Yıl önce
Vaguely threatening lol
Wesley Kagan
Wesley Kagan Yıl önce
Thanks! I don't think they would hire me, though hah
lt1eg6 Aylar önce
928 and Deltron 3030! Awesome and informative content. What more could one ask for!
confuzionn Yıl önce
Thank you so much for making this video, and a special thanks for talking about the history of it, which was especially interesting. This video is especially helpful to me as I'm attempting to design a space frame chassis out of cardboard as an application to an FSAE team, and I wanted to learn more about the mathematics involved in calculating something like this. I know it kinda divides the audience sometimes, but I love when you talk about the mathematics and theory behind it, and especially when you apply that theory so it doesn't get boring.
Wesley Kagan
Wesley Kagan Yıl önce
Thanks for watching! Sounds like a cool project. There’s so much to these systems that it’s hard to get a handle on all of them
Dustin Sinn
Dustin Sinn Yıl önce
Gotta say. Seeing the Deltron 3030 on album art on the middle monitor just made me like your content even more. 🤣
SunflowerRunner Yıl önce
Upgrade your grey matter, because someday it may matter.
Wesley Kagan
Wesley Kagan Yıl önce
Haha, it's a fantastic album! One of my favorites.
Alok Pisharody
Alok Pisharody Yıl önce
Wes mate I gotta say I love the way you break concepts down. From one teacher to another, really good job.
Imbrium Yıl önce
For anyone curious, Bernoulli and Euler's blood pressure measuring method basically involved jamming a glass tube into a live artery and measuring how far the blood climbed up it. Interestingly this method of measuring pressure is still used today in aircraft - Bernoulli's calculations inspired the Pitot tube which almost all aircraft use to calculate airspeed by measuring the air pressure inside it.
Wesley Kagan
Wesley Kagan Yıl önce
Yes- exactly. It wasn't a pleasant thing to read. But, it worked.
The Talent
The Talent Yıl önce
This is perhaps one of my favourite videos of yours. I’m an engineer and total Euler fanboy. Like, I tried to convince my wife we could name one of our kids after him. We only have daughters.
The Talent
The Talent Yıl önce
@BambiTrout too generic. I want my daughters to know that I named them after a male mathematician with a gammy eye and some of the most incredible insights the world has ever known.
BambiTrout Yıl önce
His full name was Leonhard Euler, so you could have got away with Leona!
Ngalla Herdman
Ngalla Herdman Yıl önce
Didn’t want to make that her middle name? First name olive
The Talent
The Talent Yıl önce
@Ellis Jackson I have accepted the compromise that we will name our next dog Euler.
Ellis Jackson
Ellis Jackson Yıl önce
She didn't like Eulerina?
KyletheCreator Yıl önce
First video I have seen of yours wesley and I'd like to let you know you immediately hooked me and your sense of humer is one I strive for in my videos! You are so well research and I can thank you enough for that!
EliTroyer Yıl önce
Wes, are you an engineer? Everything you have done on this channel reminds me of something only the coolest engineers do. Seriously, you're a badass
undersky Yıl önce
This was a really excellent video thank you so much for sharing your knowledge. I'm an artist interested in hard surface design and trying to understand how to make concept designs with optimised topology look convincing has been something troubling me latley.
Weston Aylar önce
Incredible video and explanation! It was awesome to see where everything came from and how it came together over time and how technology changed its uses.
GeneralBays Yıl önce
If your explanation starts with " ... and I need to put my history degree to use...", you've hooked me right there! Thanks for the great video!
ابراهيم البناوي Ibrahem Albanawi
Your content is really good and different and for some reason is fun even if it's just explaining something scientific it's really amazing
ابراهيم البناوي Ibrahem Albanawi
@Wesley Kagan Your welcome from Saudiarabia
Wesley Kagan
Wesley Kagan Yıl önce
Thank you! I appreciate it!
Baxter Gonzalez
Baxter Gonzalez Yıl önce
Honestly phenomenal video, informative and entertaining! Looking forward to more
-Mystic- Yıl önce
This is a great video! Very informative and educational while still being funny and casual!
RLRSwanson Yıl önce
Those structures and that divan in particular looks like something Carlo Mollino would've come up with had he had access to modern computing power and manufacturing methods...Which makes some of the things he designed going back to the 1940s with essentially a pencil, paper, slide rule and intuition and how local Turin shops like Apelli & Varesio were able to manufacture them with what they had even more astonishing.
David Beazley
David Beazley Aylar önce
I think it was John Cooper that figured out that if you drill holes in bracing, it not only saved on weight but actually made the bracing stronger.
dre Yıl önce
Great video. But Euler is pronounced like "oiler" as used in that sweet 928 at the end there. Took me almost a whole semester to learn that back in the day. Very interesting topic, with history in there too.
Josué Valar
Josué Valar Yıl önce
Your video style is really engaging, love the funny bits here and there xD
SJ2 Penrose
SJ2 Penrose Aylar önce
When he said "this is mostly a history lesson with some real world tests" I compulsively liked
N8 the Great
N8 the Great Yıl önce
Just wanted to mention, computer looks insane. Really cool idea.
aednil 25 gün önce
I love how these structures end up looking organic
Tomas Silva
Tomas Silva Yıl önce
Cool video! I would love to see more engineering videos like this
Travis Cleary
Travis Cleary Yıl önce
Highly enlightening, your explanations are concise and easily comprehended. You have inspired me to try out these features in F360. More videos of this nature please!
Wesley Kagan
Wesley Kagan Yıl önce
Noted! Thanks for watching!
Gunhaver Yıl önce
6:24 I've never seen this formally explained. i only ever saw the practical application where you can let gravity pull on a plastic shape, and the shape it forms will be that objects strongest compression shape against gravity when you invert it. For example, the arc that a piece of paper makes when draped between two points (a catenary) will be that paper's strongest shape in compression. i've seen this used with resin casting to make bridge supports or other similar shapes. you can also use a chain to trace out a catenary shaped mold for concrete to make an arch
Francesco Varrato
Since my research articles, I've always wondered whether the complementary to an Apollonian packing can be good for optimizing structure strength vs used material. Do you have any insight on that?
Paul Black
Paul Black Aylar önce
Cool wall computer! Maybe my next computer can be cool like that. Thanks for explaining the math and history behind the weird shapes.
Andai Aylar önce
My first instinct is to just make the weak part thicker, but I'm not sure that's how it works? I imagine altering the thickness of one region (and throwing it back into the optimizer) would result in changes to the rest of the design as well? To put it another way: is it possible to apply an "easy fix" to that one part without changing the entire design? My guess is that if it were that easy, the algorithm would have found it. Also, do you end up with one solution or does it give you a lot of different designs to choose from, with different weak areas?
Aes Cyprium
Aes Cyprium Yıl önce
I "obtained" SW2012 and all I ever did with it in a decade was make some dope ass rims. Its nice to see what you can do with all the *works it comes with if you know what tf you're doing. Good stuff.
Vincent Barkley
Vincent Barkley Yıl önce
Hi Wesley, very interesting video. Would you please show us actually running an optimization in Fusion 360? Good luck in your move.
phenomanII Yıl önce
Hmm, I wonder whether you're considering creating a land speed racer :)
PY B. Aylar önce
1. Great choice of book (Godel Escher Bach). 2. It would've been nice if you extended on the idea of evolutionary computation which is at the heart of generative design. It is an absolutely fantastic subject and the analogy to biological evolution is riveting. As an example, bone topology as a function of weight, stiffness, and other constraints is approached in the same concept, hence why results would be similar in related problems.
Josh Glynn
Josh Glynn Yıl önce
Awesome work, makes me want to design stuff!
Saying N*igro Makes YouTube cry
Nice video. You know a lot! I'd like to take a course to learn how to do the best mechanical structures I could.
Shakdi Dagalimal
Shakdi Dagalimal Aylar önce
7:59 I was designing and building and flying that structure type with balsa wood years ago. Some of this becomes apparent by hands on experience. I admit a cruder facsimile yet important enough to undertake with definitive results.
XDSDDLord Yıl önce
I am incredibly glad I subscribed to you. Watching your videos require me to be in a certain mental "mood," but I never regret it when I click on one.
Mustang_II_ Yıl önce
I learn something every time I watch one of your videos. I wish I had the drive to learn complex math. I feel like my high school years were wasted.
medved Aylar önce
High school doesn't have any "complex math". Not every college has it.
Zion Domena
Zion Domena 24 gün önce
This has taught me very much but its amazing how such a beautiful design could be so close to perfection, Only thing needed is balance but that takes common sense haha and who has that nowadays?
Max MF
Max MF Aylar önce
This was a very good video! Educational and funny, I am glad to have found your channel and have subscribed.
isaac10231 Yıl önce
Can you do a tutorial on how to make optimized topology for design components?
will rogers
will rogers Yıl önce
I would love to see you implementing designs like this into you various car builds
Wesley Kagan
Wesley Kagan Yıl önce
All of it is designed with a car project in mind, just sometimes it doesn't quite get all the way there.
Hustle Union
Hustle Union Yıl önce
on that stress test i couldn't help but think it was upside down. seems like it could take more punishment in a flipped position without having to revise it.
Tiit Saul
Tiit Saul Yıl önce
Cool. Hey would you design a car wheel optimised for weight? I’ve been wondering what would optimal car wheel look like, if aesthetics and brakes are not an issue.
ArtistAnthony Yıl önce
Many AI actually made one, look up AI designed Wheel and if you find the orange one, that's the one.
Sam Fedorka
Sam Fedorka Yıl önce
I suspect the result would be a disc with no holes (no spokes, a zero spoke wheel), with a thickness gradient from the hub to the tire. This would also be very aerodynamic, at the cost of insufficient brake cooling. In any case, I would be very interested in a stress analysis of both this design and the multi-spoke designs mentioned by others. My idea would have eliminated stress raisers, possibly at the cost of more material.
Dennis Yıl önce
@Tiit Saul nice try soldier. Try again.
Tiit Saul
Tiit Saul Yıl önce
@Dennis auto correction. Meant to write boldie
Dennis Yıl önce
@Tiit Saul bolder wheels? What are you talking about? Im talking about the bolide's 3d printed calipers e.g.
Lukas Yıl önce
I stopped taking math in high school pre calc and mostly understood this. Very well explained!
Wesley Kagan
Wesley Kagan Yıl önce
Thank you!
Steve Sloan
Steve Sloan Yıl önce
Seriously need a part two to this video.
nugenki Yıl önce
Video is put together so well. I didn't lose focus once
b Aylar önce
Late to the party but I'm wondering... Regarding practical application of this kind of topology optimization; looking at the chair, for example, there are some points that are thin enough that they could be damaged or severed. Depending on the specifics (what you're using it for, what material you're using, whatever factors could potentially cause damage [pets chewing, teens existing]) could something like this be planned for? Something about failure points? I mean I'm picturing adjusting the model to have a section severed and then fixing the weak spot before un-severing the thing so there's essentially doubled up sections. But then it starts getting heavy again. Would it just be down to "this one is gonna get chewed on, let's double it, but this one is fine by itself" type judgement to implement such changes?
Mac Yıl önce
Fascinating topic, well presented, bravo!
A Generic Account
Layman here. Those initial designs you flashed up really remind me of biological extractions. Like, mimicking trees and musculoskeletal assemblies. Biomimetics, I think, is the term?
A Generic Account
@Wesley Kagan Superb! Leaving smarter than I came in. I guess Nature has been doing this sort of thing for aeons. Makes sense to sort of crib her blueprints for the some of the starting points. Hope the move goes well. Bigger castle, bigger booms.
Wesley Kagan
Wesley Kagan Yıl önce
Essentially- yes! Generative design uses similar structure to biological design in formation like plant structure
Michael Johnson
Michael Johnson Yıl önce
This was fantastic on many levels, but I appreciate the conversation in the comments nearly as much as the content. This (and you, WK) made my day. Thanks.
Wesley Kagan
Wesley Kagan Yıl önce
I completely agree! The conversation in the comments is one of my favorite parts of having a channel.
Saumya Cow
Saumya Cow Yıl önce
Just noticed Godel, Escher, Bach on the bookshelf - one of my top 5 favourite books. A real classic.
Murphey Law
Murphey Law Yıl önce
Just found this channel, and I honestly don't know what its main focus is, but I did definitely like this video!
Sean Roberts
Sean Roberts Yıl önce
Great video 👍The history lesson was good and to show the convergence of modern design and manufacturing techniques of today.
Wesley Kagan
Wesley Kagan Yıl önce
Glad you enjoyed it!
Thomas Macnamara
Thomas Macnamara Yıl önce
This is my first time seeing your channel and this video is fantastic! thank you!
Spencer Aylar önce
Do the programs take infill and shells into consideration too? If you're using a low enough infill, the optimized shape could use _more_ material. I wonder if they're weaker than in theory, because of how FDM prints have weaker sheer strength along the z-axis.
Timmy Reilly
Timmy Reilly Aylar önce
THAT WAS RAD. This is all I've been thinking about. It was awesome to hear the history as well
CommanderS7 Yıl önce
You may or may not already be familiar, however one company doing topology optimization, Altair, has some neat ideas that (from what I understand) go beyond the optimization of Solidworks or Fusion 360. I'm part of a collegiate FSAE race team, and Altair came by our university a couple months ago with a small seminar, helping us optimize a few parts and giving us the run down on some of their software. One of the really interesting things is how the mathematics used in their optimization heavily rely on research done into the way bones grow in animals; their theory was essentially "nature already seems to have this figured out, why change it?" A lot of the parts created with this software somehow managed to look even MORE alien and organic than what you've already shown in this video.
Wesley Kagan
Wesley Kagan Yıl önce
Yeah, Altair is doing some VERY cool stuff right now- I mean, it's fantastic stuff but also I have a feeling that I couldn't afford to walk in the door of their building, let alone explore their suite of design and AI programs... Although if they are listening want to send it over, I promise I won't be responsible with it.
Chad O'Hara
Chad O'Hara Yıl önce
Thank you for this. Great explanation 👌
Субариджи Субариджи
great video. have you been thinking of swapping 928 side mirrors?
Philip Smolen
Philip Smolen Yıl önce
Any progress on the all mechanical computer?
Daniel Grois
Daniel Grois Yıl önce
Hi Wesley. I loved this video you made and, as a student of design, liked the chaise lounge on the video's thumbnail. Do you happen to know where I can get more info on that chaise lounge?
ww Aylar önce
I've been researching compound bows and now I know why they look like that
alish2001 Yıl önce
I don't know how I found this channel. I'm studying engineering but none of the "real" engineering stuff rather software engineering but this was so interesting and I was glued to my seat the entire time.
Luis Daniel Mesa Velasquez
In uni I was taking graph theory and a chemistry class... I've always been good with computers (ended up becoming a software engineer for Amazon without a degree) but I've always sucked at chemistry... In a test I had to find the molecule knowing only the atoms, and I didn't really know how to solve it (since I couldn't remember the damn procedure) so I solved it using graphs (brute force actually). I passed the test and the teacher asked me about it and I explained graphs and the other class and she was a bit surprised, but I showed my procedure in paper so it was good. I thought I was a bit crazy for doing it that way but I didn't know someone else had made that connection as well (James Sylvester)... now I have a new theme to investigate for hours on the internet. Thanks!
Matthew Flamini
Matthew Flamini Aylar önce
Love that you have Godel Escher Bach on display. Wonderful.
Zengineer Yıl önce
First! lol. Seriously, like the concept of this video a lot. Very informative and interesting! Does the new house have a larger shop?
George Ou
George Ou Aylar önce
Short answer is that sharp corners are generally bad because they're concentrated stress points, but they're much easy to make through traditional means before the 3D printing era.
ethan Yıl önce
GEB is as such a cool book! Thanks for the video!
Wesley Kagan
Wesley Kagan Yıl önce
It’s a great book!
dirt poor
dirt poor Yıl önce
Looks exactly like the stuff I make with 3d Filiment Hand Printer and create little structures by hand. Ends up looking like alien hive if I want it to be supported.
ninthRing Aylar önce
OK, this kind of design has fascinated me for ages - especially when it overlaps with previously evolved Biological structures in Biomimicry. I noted the conspicuous display of the Gödel, Escher, Bach book, btw...
# W
# W 11 aylar önce
Kevin Czinger @ Divergent is running particularly hot in this area..great field..always wonder about optimised parts resistance to one off exo optimal loads... resistance to chaos.
Ayush Bakshi
Ayush Bakshi Yıl önce
That's the best demonstration i've seen. great video
Felipe Catz
Felipe Catz Yıl önce
first video of yours i watched. loved your personality and the nonchalant info dumping. love the content!
flamencoprof Yıl önce
I'm pleased I understood a lot of this. It seems the object is to calculate the forces between fixed points and only have material along the lines between the points sufficient to resist the forces. With maybe a bit more to resist sideways/torsion, uh, maybe another whole subject. V. Interesting to someone mostly experienced in sound and electronics.
Wesley Kagan
Wesley Kagan Yıl önce
That's good to hear- I worry I error on the side of too complicated sometimes, I'm glad that it can be understood!
Mike Clarke
Mike Clarke 25 gün önce
looking at the more modern ones shown, reminds me a lot of something organic, nature. Which going toward so sifi reference here, growing organic structures. I think applying some of these principles in design, can lead to growing parts. From a basic design start, as growing specific stresses are introduced and those stress points are strengthened in the growing process, much like living things in nature. Those designs remind me a lot of what that may look like. ?
Lungshenli Yıl önce
as a biomometics student this is surprisingly exiting to me
John Hogan
John Hogan Aylar önce
Thanks for making this vid. As a kid I developed my own understanding of basic engineering, like we all do. Some of the intuitive stuff was wrong, like thinking folding wings on aircraft could never work because only long, straight beams could ever be strong. But from early on it seemed like things were designed wastefully and just dumbly. Human-made stuff often seemed lazy and to rely on using overly heavy/strong materials and then placing supports etc in vastly sub-optimal places that relied on the over-engineering. A little extra thinking and design could have resulted in much better use of the resources, while also making the item just nicer. Some much urban design and civil engineering is ugly and off-putting. That was a gut feeling that I've never forgotten and it's awesome to randomly see this vid of yours. I'll go back and see if you've gone more into this. I like the way you think!
X Builder
X Builder 9 aylar önce
I've been wondering about this for years. Thank you for the answer
Joe Gieser
Joe Gieser Yıl önce
incredible content, thank you
Your humour is so subtle but hilarious, love it sick video
urza1989 Yıl önce
Free thumbs up for the 928! I've been looking to 3d printing to replace some of the worn out plastics in my 79'.
Wesley Kagan
Wesley Kagan Yıl önce
Love mine! This is 928#4 for me haha
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