Amazing. Now I'm left to wonder what all these contraptions are good for. For example, why would one use something like this "Persian joint": https://www.youtube.com/watch?v=mFoiSRWdW5E ?
Agreed, a brief note on application would be great.
Understand 1,700 Mechanical Linkages with These Helpful Animations
41–50 of 67 posts
Re: Understand 1,700 Mechanical Linkages with These Helpful Animations
#42These are amazing ! I already have a use for the limited space door at home, and I want to build the Archimedian Drive just because it is beautiful. This also says something to me about the value of human determination - a retired professor in Vietnam must be old enough to have been an adult during the American involvement in their wars, and crushing poverty their state was left in, still a professorship and a desire…
Loosely relevant, my deskmate and his family escaped Vietnam at about 16 or 17 around '76 or so, on a crowded fishing boat to Thailand. He and his siblings and cousins all made good lives in America.
I was in the Navy when my ship picked up some refugees in a scary boat, around '77. After the rescue we sunk the boat (navigation hazard) with the forward gun.
The American company I work for now does business in Vietnam (and the rest of the world).
The world turns. Today I hope for good things to come for the people of Iran and Cuba, and at least a peaceful working relationship between those countries and America.
Re: Understand 1,700 Mechanical Linkages with These Helpful Animations
#43My guess is that basic linkages like this are not patentable, even if you invent a "new" one. That could be an argument in support of not allowing patents for at least the fundamentals of computer science and programming.
Re: Understand 1,700 Mechanical Linkages with These Helpful Animations
#44Is there a name for the field of computer science that classifies these linkages by their topological proporties other than just general CAD stuff? It would be awesome to say I have linkage A and linkage C, what kind of linkage B can I put in the middle?
Re: Understand 1,700 Mechanical Linkages with These Helpful Animations
#45Seeing this leaves me incredibly dissatisfied with the state of Wikipedia. This is what it should be about. Using rich media to explain and fascinate. Instead we get 10.000 words on the history of Anime.
You mean like these? https://commons.wikimedia.org/wiki/Category:Animations_of_ma...
Re: Understand 1,700 Mechanical Linkages with These Helpful Animations
#46Incredible timing. Just yesterday while looking at a door opening mechanism, I was just wondering where I could find something like this.
Re: Understand 1,700 Mechanical Linkages with These Helpful Animations
#47I wonder how much time he spent on these. Incredible dedication!
Re: Understand 1,700 Mechanical Linkages with These Helpful Animations
#48Earlier quoted context omitted.
This is certainly true in general. I see a niche for the mechanical solution if reliability is a primary goal and there is a (not too complex) gear that can solve your problem. About ten year ago I worked in project that designed a solar tracker. These trackers need to be cheap and reliable. Every hour an mechanic spends in a remote location is incredibly expensive and cuts into your yield very fast. Interestingly th…
I was hoping that footnote was a link to the gear, not a demo of its application. Would you happen to have that?
I'm sorry, here is the patent[1].
EDIT: I almost forgot that my old website had a page about a model I built back then. I never migrated it to the new site but it is still available[2].
[1] https://www.google.com/patents/US4585318?dq=inassignee:%22Di...
Re: Understand 1,700 Mechanical Linkages with These Helpful Animations
#49Earlier quoted context omitted.
This is certainly true in general. I see a niche for the mechanical solution if reliability is a primary goal and there is a (not too complex) gear that can solve your problem. About ten year ago I worked in project that designed a solar tracker. These trackers need to be cheap and reliable. Every hour an mechanic spends in a remote location is incredibly expensive and cuts into your yield very fast. Interestingly th…
Why are mechanical solutions more reliable than a servo ? Aren't mechanical and moving parts less reliable than electronics , in general ?
Aren't mechanical and moving parts less reliable than
electronics, in general?
1. Simple gear and constant velocity three-phase motor[1]
2. Two axis mounting and two stepper motors.
[1] Industrial three-phase motors are real workhorses, produced in large quantities since ages, relatively cheap and incredibly reliable.
Re: Understand 1,700 Mechanical Linkages with These Helpful Animations
#50My guess is that basic linkages like this are not patentable, even if you invent a "new" one. That could be an argument in support of not allowing patents for at least the fundamentals of computer science and programming.
Do you have any evidence to support this or is it just your reckons?