It's a great collection and exploring it is fun, but it misses on titles / names of the given linkage or movement. It makes sense when you are reading the book [0], but on a site like this where you see the individual item in isolation, a title or name would be helpful.
These things don't have names they have descriptions of how they work. But I see your point that some of them are described only in reference to another movement with a more complete description.
One of my favourite sites! and an interesting example of that class of sites which are book made into sites with animations/interaction --- the another classic and notable example is:
Really wish that the folks doing the 507 Mechanical Movements would finish the balance of the animations.
Curious if folks are aware of other similar text/website combinations which are still extant (many others such as Bembo's Zoo are no longer available, and of course at one point in time, this sort of thing was the province of CD-ROMs such as Leonardo).
If you haven't checked it out before, Nicholas Rougeux often does these types of modernization conversions for older printed content: https://www.c82.net/
Yes, I'm familiar with his work --- it's very nice, but it's not the on-line and animated/interactive thing I was trying to describe/specify/ask about.
If you ever happened to go through Karlsruhe, Germany, there is a collection of mechanical transmission models from Redtenbacher. Some models were on display in the mechanical engineering building at the university.
Two more great books to have in the mechanical world:
"Manufacturing Processes for Design Professionals" - amazing photos, diagrams, explanations, etc. of every major manufacturing process - great coffee table book.
"Materials Selection in Mechanical Design" - great book with "Ashby Charts" that let you compare materials against their material properties - e.g. strength vs. weight.
Maybe it's for bearing efficiency? Note that the spur gears are rigidly attached to, respectively, the crank and the shaft. So they don't require bearings at their centres. There is a link arm which pulls the gears together, and that rotates. But the key is that this arm is not transmitting the cranking power; it just holds the parts together. So its bushings/bearings don't have to be so hefty. (Their load is going to be proportional to the transmitted power; obviously the bigger the crank and more horsepower going through it, the more tightly you have to hold the gears together. But it's going to be some fraction compared to a bearing that is directly driven.)
The note only alludes to this mechanism being used to elude a patent claim, not mentioning any advantages. Someone had patented cranks in such a way that you can weasel your way out with this arrangement. I'm guessing that the patent's drawings and descriptions specifically indicated a rotating bushing on the crank wheel where the arm is attached, and this has no such arm attachment.
James Pickard modified the Newcomen steam engine to deliver rotary motion using a crank (and patented it). So James Watt used the sun and planet for his steam engine to avoid infringing the patent.
The Picard patent specifies that the crank is fixed to the driveshaft, but it is free to rotate in the sun and planet setup
Looks like there's contact between the outer diameter of the sun-gear and a surface close to the center of the planet-gear? The link arm is pulling them together and this contact keeps them apart I guess. The rotation speeds are different so you'd need a bearing? I dunno tbh - I'm not sure what the colors represent and I'm not even sure if I'm using the correct words to describe what I see.
This is great, but repetitive. A lot of them are minor variances on a previous example. Is there a shorter list that distills it down to novel examples of the major concepts?
The developer for TIM made a modern version called Contraption Maker that is a lot of the same feel and available on Steam. There is a free playable demo that plays well on my 16G M1 Macbook Air. Full version is $12.99 USD
Good times. Ever played Sid & Al's Incredible Toons [0]? Same same concept, from the same people (Sierra / Dynamix), but with a slightly different take and an emphasis on silliness / humour. A sound card was a must though.
This so much! What great games, probably my favorites over the early FPSs of the time, but in close contention with Day of the Tentacle and Monkey Island
You know the Museum of Science in Boston has a bunch of these made in real life iirc for the World Fair in Chicago. They are so fun to see since there's a button you can toggle to activate them. My kid loves watching them go.
Cool site. I started training seriously and the first thing that came to mind when seeing these movements was... Why did it take us so long to make weight machines (19th century) if we knew the effect of resistance training for millennia AND had the mechanical understanding?
The answer appears to be free weights did the job and people only became sedentary recently.
They both look fine to me. But I do notice some weird aliasing effects in the animation that makes it difficult to identify the direction of fast moving rope. Maybe that's the problem?
Also, set up formulas for calculating speed, torque, forces etc, of each system.
Then create a modular simulation library and point and click simulator where all the component variants are covered so that the user can piece new systems together using those components.
For me it's a great dataset to train my own brain. This way when I'm in the field and need to come up with a fix for something I can query my intellect and come up with a solution. No accounts, internet connection, or compute needed!
That's a good training set for animation AIs. Image generators are terrible at mechanical understanding at the moment. That needs to be fixed.
AI videos of steam trains make a horrid mess of the engine linkages. Some wheels rotate in the wrong direction. Wheels rotate on stationary locomotives.
Just keeping rails in parallel is beyond many Stable Diffusion type systems.
Trackwork with switches is just rails all over the place. Some videos can't even keep the train wheels on the track.
Pseudo-historical AI generated videos on machinery related subjects are awful. I saw one recently on rolling mills. There are blatant errors. Some rolls are turning in the wrong direction. Useless rolls facing sideways to the direction of slab travel. Gears that don't do anything. Steel entering rolls headed for the roller, not the gap.[1]
That's for a rolling mill, which is a large but simple machine. AI misunderstanding of things with moving parts is even worse. There's now more AI slop about historical machinery in search results than real-world content.
Well, there’s a book from my past. Got the book to see if I could find a clever way to get high speed, low displacement and high torque from small motors without huge gearing.
The side project was dropped as life got in the way, but I really enjoyed looking at all the different mechanisms.
For those who also haven't seen it before who might follow: the presenter (who demonstrates the mechanical mechanisms) lost his wife to a heart attack in 2024, kept the channel going for another 1.5 years, made a seemingly happy 'My Last Video' video that presented the end as just running out of new things to talk about, then he killed himself.
Honestly, I miss old-style internet sites like this. Nothing fancy, just good niched out information. No 300 MB loads for something that should be simple.
I feel like this is a website that needs to be made available with one of those swiss army USB sticks for collecting useful knowledge in case of apocalypse. Very cool.
This site is a treasure for anyone who has ever tried to get useful motion out of a small motor. The wish for them to finish the remaining animations is very real.
It's a great collection and exploring it is fun, but it misses on titles / names of the given linkage or movement. It makes sense when you are reading the book [0], but on a site like this where you see the individual item in isolation, a title or name would be helpful.
0: https://archive.org/details/fivehundredseven00browiala
Of possible interest
Mechanisms in Modern Engineering Design: A Handbook for Engineers, Designers and Inventors by I. I. Artobolevsky.
In 5 volumes and seven books
https://mirtitles.org/2018/10/13/mechanisms-in-modern-engine...
This is great! Very interesting - thanks!
thanks for this!
These things don't have names they have descriptions of how they work. But I see your point that some of them are described only in reference to another movement with a more complete description.
One of my favourite sites! and an interesting example of that class of sites which are book made into sites with animations/interaction --- the another classic and notable example is:
https://mathcs.clarku.edu/~djoyce/java/elements/elements.htm...
Really wish that the folks doing the 507 Mechanical Movements would finish the balance of the animations.
Curious if folks are aware of other similar text/website combinations which are still extant (many others such as Bembo's Zoo are no longer available, and of course at one point in time, this sort of thing was the province of CD-ROMs such as Leonardo).
If you haven't checked it out before, Nicholas Rougeux often does these types of modernization conversions for older printed content: https://www.c82.net/
e.g. here's a very beautiful reproduction of Euclid's elements https://www.c82.net/work/euclid
Yes, I'm familiar with his work --- it's very nice, but it's not the on-line and animated/interactive thing I was trying to describe/specify/ask about.
If you ever happened to go through Karlsruhe, Germany, there is a collection of mechanical transmission models from Redtenbacher. Some models were on display in the mechanical engineering building at the university.
I could only find this link (in German) about the collection. https://redtenbachersteyr.com/redtenbacher-in-karlsruhe/
One student from Redtenbacher was Reuleaux and there is another collection of transmission from Reuleaux at Cornell university. https://engineering.library.cornell.edu/kmoddl/
Two more great books to have in the mechanical world:
"Manufacturing Processes for Design Professionals" - amazing photos, diagrams, explanations, etc. of every major manufacturing process - great coffee table book.
https://www.amazon.com/Manufacturing-Processes-Design-Profes...
"Materials Selection in Mechanical Design" - great book with "Ashby Charts" that let you compare materials against their material properties - e.g. strength vs. weight.
https://www.amazon.com/dp/0750661682
I really love this book, I found a first edition copy in a used bookstore in Maine on vacation.
https://archive.org/details/dli.ernet.14756/page/3/mode/2up
Past discussions:
https://news.ycombinator.com/item?id=10374436, 27 comments 11 years ago.
https://news.ycombinator.com/item?id=26373539, 30 comments 5 years ago.
Thanks! Macroexpanded:
Five hundred and seven Mechanical Movements - https://news.ycombinator.com/item?id=41579354 - Sept 2024 (5 comments)
507 Mechanical Movements (1868) - https://news.ycombinator.com/item?id=26373539 - March 2021 (30 comments)
Five Hundred and Seven Mechanical Movements - https://news.ycombinator.com/item?id=19968114 - May 2019 (147 comments)
507 Mechanical Movements (1868) - https://news.ycombinator.com/item?id=10374436 - Oct 2015 (27 comments)
Mechanical Movements, Animated - https://news.ycombinator.com/item?id=8019787 - July 2014 (1 comment)
Five Hundred and Seven Mechanical Movements - https://news.ycombinator.com/item?id=6230363 - Aug 2013 (66 comments)
Five Hundred and Seven Mechanical Movements (1868) - https://news.ycombinator.com/item?id=5660770 - May 2013 (25 comments)
Passim: https://news.ycombinator.com/from?site=507movements.com
Plugging a yt channel that posts lots of these sort of models:
https://youtube.com/@thang010146
This YT channel is the first thing I thought of when I saw the site.
What is the purpose of using bearings to build a crank mechanism as in 39? https://507movements.com/mm_039.html
Maybe it's for bearing efficiency? Note that the spur gears are rigidly attached to, respectively, the crank and the shaft. So they don't require bearings at their centres. There is a link arm which pulls the gears together, and that rotates. But the key is that this arm is not transmitting the cranking power; it just holds the parts together. So its bushings/bearings don't have to be so hefty. (Their load is going to be proportional to the transmitted power; obviously the bigger the crank and more horsepower going through it, the more tightly you have to hold the gears together. But it's going to be some fraction compared to a bearing that is directly driven.)
The note only alludes to this mechanism being used to elude a patent claim, not mentioning any advantages. Someone had patented cranks in such a way that you can weasel your way out with this arrangement. I'm guessing that the patent's drawings and descriptions specifically indicated a rotating bushing on the crank wheel where the arm is attached, and this has no such arm attachment.
Avoiding patent infringement.
James Pickard modified the Newcomen steam engine to deliver rotary motion using a crank (and patented it). So James Watt used the sun and planet for his steam engine to avoid infringing the patent.
The Picard patent specifies that the crank is fixed to the driveshaft, but it is free to rotate in the sun and planet setup
Looks like there's contact between the outer diameter of the sun-gear and a surface close to the center of the planet-gear? The link arm is pulling them together and this contact keeps them apart I guess. The rotation speeds are different so you'd need a bearing? I dunno tbh - I'm not sure what the colors represent and I'm not even sure if I'm using the correct words to describe what I see.
This guy has quite a lot of videos of various mechanisms if you’re into that sort of thing
https://youtube.com/@thang010146?si=b91XElCL_-TgGMte
This is great, but repetitive. A lot of them are minor variances on a previous example. Is there a shorter list that distills it down to novel examples of the major concepts?
It makes me want to find a way to boot up The Incredible Machine [0], so many hours spent on TIM and TIM2 back in the day.
0: https://en.wikipedia.org/wiki/The_Incredible_Machine
Here you go: https://archive.org/details/the_incredible_machine_1992
The developer for TIM made a modern version called Contraption Maker that is a lot of the same feel and available on Steam. There is a free playable demo that plays well on my 16G M1 Macbook Air. Full version is $12.99 USD
https://store.steampowered.com/app/241240/Contraption_Maker/
Good times. Ever played Sid & Al's Incredible Toons [0]? Same same concept, from the same people (Sierra / Dynamix), but with a slightly different take and an emphasis on silliness / humour. A sound card was a must though.
0: https://en.wikipedia.org/wiki/Sid_&_Al's_Incredible_Toons
This so much! What great games, probably my favorites over the early FPSs of the time, but in close contention with Day of the Tentacle and Monkey Island
The Book of Ingenious Mechanical Devices was published in 1206.
https://historymedieval.com/ismail-al-jazaris-marvelous-mach...
You know the Museum of Science in Boston has a bunch of these made in real life iirc for the World Fair in Chicago. They are so fun to see since there's a button you can toggle to activate them. My kid loves watching them go.
For ref: https://en.wikipedia.org/wiki/The_Clark_Collection_of_Mechan...
Cool site. I started training seriously and the first thing that came to mind when seeing these movements was... Why did it take us so long to make weight machines (19th century) if we knew the effect of resistance training for millennia AND had the mechanical understanding?
The answer appears to be free weights did the job and people only became sedentary recently.
The first two examples I looked at (https://507movements.com/mm_016.html and https://507movements.com/mm_015.html) have the ropes partially going in the wrong direction.
They both look fine to me. But I do notice some weird aliasing effects in the animation that makes it difficult to identify the direction of fast moving rope. Maybe that's the problem?
Many of these aren't animated... which gives me a great(?) idea for a new AI benchmark: "Animate the mechanical movement at this URL: ..."
Way more telling that "draw a pelican on a bicycle"
Also, set up formulas for calculating speed, torque, forces etc, of each system.
Then create a modular simulation library and point and click simulator where all the component variants are covered so that the user can piece new systems together using those components.
Also include sliders so parameters can be adjusted to see how it affects the mechanism (ex. wheel radius).
Ironically, before coming to the comments I was thinking this would be a good dataset for llms to learn real world mechanics.
For me it's a great dataset to train my own brain. This way when I'm in the field and need to come up with a fix for something I can query my intellect and come up with a solution. No accounts, internet connection, or compute needed!
You would become one big walking practical-solution-providing library of expertise hiding in a human form.
Oh no, Humans are gonna take the AI jobs!
Tried it with chatgpt, and of course it failed. It showed pulleys and belt rotating in opposite directions for a simple two pulley coupling.
That's a good training set for animation AIs. Image generators are terrible at mechanical understanding at the moment. That needs to be fixed.
AI videos of steam trains make a horrid mess of the engine linkages. Some wheels rotate in the wrong direction. Wheels rotate on stationary locomotives. Just keeping rails in parallel is beyond many Stable Diffusion type systems. Trackwork with switches is just rails all over the place. Some videos can't even keep the train wheels on the track.
Pseudo-historical AI generated videos on machinery related subjects are awful. I saw one recently on rolling mills. There are blatant errors. Some rolls are turning in the wrong direction. Useless rolls facing sideways to the direction of slab travel. Gears that don't do anything. Steel entering rolls headed for the roller, not the gap.[1]
That's for a rolling mill, which is a large but simple machine. AI misunderstanding of things with moving parts is even worse. There's now more AI slop about historical machinery in search results than real-world content.
[1] https://www.youtube.com/watch?v=ItWeqMpDpkk
Well, there’s a book from my past. Got the book to see if I could find a clever way to get high speed, low displacement and high torque from small motors without huge gearing.
The side project was dropped as life got in the way, but I really enjoyed looking at all the different mechanisms.
Robert Murray Smith made many videos on mechanisms like these https://www.youtube.com/@ThinkingandTinkering/videos
Hadn't seen this channel before.
Its great, but also pretty tragic.
For those who also haven't seen it before who might follow: the presenter (who demonstrates the mechanical mechanisms) lost his wife to a heart attack in 2024, kept the channel going for another 1.5 years, made a seemingly happy 'My Last Video' video that presented the end as just running out of new things to talk about, then he killed himself.
I wonder if 3-d printing will extend this... There are some weird things you can make nowadays.
EDIT: now I find stuff like "walking table" and I wonder if that kind of thing predates 3d printing.
Honestly, I miss old-style internet sites like this. Nothing fancy, just good niched out information. No 300 MB loads for something that should be simple.
I feel like this is a website that needs to be made available with one of those swiss army USB sticks for collecting useful knowledge in case of apocalypse. Very cool.
This site is a treasure for anyone who has ever tried to get useful motion out of a small motor. The wish for them to finish the remaining animations is very real.
Please lock this submission at 507 points…
Don’t most of these have ”names”? At least I would assume they have names so people know what they are talking about.
As a "wannabe" DIY engineer/maker and also in the 3d-printing hobby world, this is a wonderful resource...
Also, Christopher Polhem was a Swedish inventor who created the "mechanical alphabet"
https://sketchfab.com/Tekniskamuseet/models
I don't approve. I can't find a donation link.
I'd love to play a game that uses these as building blocks. Is there anything that approaches it?
414 is just 1 with extra steps.
How are these the same?
https://507movements.com/mm_001.html
https://507movements.com/mm_414.html
I’ve had this book for a few years. It’s nice to see it in this format.
I would love to see good animations of a differential gear and a detente escapement.
Can these be generated automatically from a small set of primitives?
I was expecting a new HTTP status code
Can we request animations? I want to see #27 working:
https://507movements.com/mm_027.html
It reminds me of a YouTube channel where I found the best song ever made.
Does anyone know
Ineed, it's a very good book. Someone should make an animated website version, though.
I found this which might interest you:
https://507movements.com/
Somewhat similar by the epic Bartosz Ciechanowski:
https://ciechanow.ski/gears/
226 is the coolest. Doubles the speed without changing the number of teeth.
This would be cool AI training data.
It is already in current training data. Both the book and website.
Now imagine if each of them got the ciechanow.ski treatment
"507 Mechanical Movements" is a rare HTTP status code, usually only used when the request can't be fulfilled due to an earthquake
No it's because the fans blade frequency is in resonance with the darn transcievers. But you are right.