HN

Comments (49)

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  emacdona
  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"
• PufPufPuf
  "507 Mechanical Movements" is a rare HTTP status code, usually only used when the request can't be fulfilled due to an earthquake
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  wowczarek
  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
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  WillAdams
  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).
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  nickpinkston
  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
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  kazinator
  What is the purpose of using bearings to build a crank mechanism as in 39? https://507movements.com/mm_039.htmlMaybe 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.
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  mkl
  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.
• rkagerer
  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?
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  jihadjihad
  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
• andrewcl
  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...
• agrue
  Plugging a yt channel that posts lots of these sort of models:https://youtube.com/@thang010146
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  frnz
  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.
• twobitshifter
  Robert Murray Smith made many videos on mechanisms like these https://www.youtube.com/@ThinkingandTinkering/videos
• stoneman24
  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.
• mklyachman
  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.
• akshay_akula
  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.
• taftster
  I'd love to play a game that uses these as building blocks. Is there anything that approaches it?
• victorbjorklund
  Don’t most of these have ”names”? At least I would assume they have names so people know what they are talking about.
• gosub100
  226 is the coolest. Doubles the speed without changing the number of teeth.
• jjkaczor
  As a "wannabe" DIY engineer/maker and also in the 3d-printing hobby world, this is a wonderful resource...
• fernly
  Can we request animations? I want to see #27 working:https://507movements.com/mm_027.html
• fifilura
  Also, Christopher Polhem was a Swedish inventor who created the "mechanical alphabet"https://sketchfab.com/Tekniskamuseet/models
• cestith
  I’ve had this book for a few years. It’s nice to see it in this format.
• anon
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• pkilgore
  414 is just 1 with extra steps.
• amelius
  Can these be generated automatically from a small set of primitives?
• warpech
  I was expecting a new HTTP status code
• herodotus
  I would love to see good animations of a differential gear and a detente escapement.
• ThatOneSong
  It reminds me of a YouTube channel where I found the best song ever made.Does anyone know
• anon
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  stmw
  Ineed, it's a very good book. Someone should make an animated website version, though.
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  bilsbie
  This would be cool AI training data.
• anon
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• anon
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• anon
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• mohamedkoubaa
  Now imagine if each of them got the ciechanow.ski treatment