507 Mechanical Movements(507movements.com) |
507 Mechanical Movements(507movements.com) |
Does anyone know
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...
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).
e.g. here's a very beautiful reproduction of Euclid's elements https://www.c82.net/work/euclid
Indexed and filterable index of over 4000 visualised mechanisms by thang010146 on YouTube
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/
"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://news.ycombinator.com/item?id=10374436, 27 comments 11 years ago.
https://news.ycombinator.com/item?id=26373539, 30 comments 5 years ago.
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)
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
https://store.steampowered.com/app/241240/Contraption_Maker/
0: https://en.wikipedia.org/wiki/Sid_&_Al's_Incredible_Toons
For ref: https://en.wikipedia.org/wiki/The_Clark_Collection_of_Mechan...
https://historymedieval.com/ismail-al-jazaris-marvelous-mach...
The answer appears to be free weights did the job and people only became sedentary recently.
Way more telling that "draw a pelican on a bicycle"
The side project was dropped as life got in the way, but I really enjoyed looking at all the different mechanisms.
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.
EDIT: now I find stuff like "walking table" and I wonder if that kind of thing predates 3d printing.
https://beta.mindcast.com/3d-mechanicals/
The sandbox was originally intended for video game effects, but it also works surprisingly well for these.
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Original sandbox source: https://github.com/majidmanzarpour/threejs-vfx
Original character source: https://github.com/achrefelouafi/SamuraiThirdPersonTemplateT...
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.
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.