15 ms·
Five Hundred and Seven Mechanical Movements (1908)
- kevinguay 7y agoWhat a great project. I have a very similar book (1800 Mechanical Movements, Devices, and Appliances) and have a blast flipping through it. It is great to see the illustrations come alive. Great great job!
- cr0sh 7y agoThere are actually a great many of these "mechanical movement" books from that time period, circa 19th to early 20th century. They are contemporary with similar books on "electrical machinery" (generators and motors, mainly), "steam engineering", "home and farm improvements/implements", and many other similar subjects. Some were aimed at the professional engineer, while others were meant or accessible to the ordinary person with such interests or needs. I enjoy discovering and adding these books to my collection when I can find them at used and antiquarian bookstores.
- mrbrowning 7y agoThis is wonderful, but I am a little disappointed that it wasn't about mechanical watch movements.
- mohn 7y agoHave you seen https://animagraffs.com/mechanical-watch/ https://animagraffs.com/mechanical-watch/ ?
- mrbrowning 7y agoNo, thank you for that!
- jcims 7y agoI used to spend a lot of time chasing a mower around the yard while trying to design a continuously variable transmission that used (for lack of the term of art) direct engagement (eg gears) rather than friction on bearing surfaces like belt-based cvt’s. Came up with a few tantalizing geometries but would always find a problem after thinking it through. Makes me wonder how many if these were deveoped under similarly mindless activities. Also makes me wonder what a genetic algorithm or ML-based optimization/search algorithm could find.
- balfirevic 7y ago> a continuously variable transmission that used (for lack of the term of art) direct engagement (eg gears) I believe the term is "positive engagement". And yeah, it's such a shame that all practical CVT's are friction based!
- jcims 7y agoNice! Thanks for the info!
- logicprog 7y agoI'm curious, I saw this ratcheting CVT on YT[1], and since I have no experience with mechanical engineering wasn't really able to judge how useful it was or whether it was practical, but it looked like the real deal? [1]: https://www.youtube.com/watch?v=G9-N-nIqc4g https://www.youtube.com/watch?v=G9-N-nIqc4g
- balfirevic 7y agoTo be clear, I'm no mechanical engineer either! There is some information about ratcheting CVTs (and CVTs in general) here [0], although the page looks a bit sketchy. From what I've seen, they are not very practical or widely used. Maybe there is a niche where their capabilities and drawbacks are a good fit but I have not come across it. One thing to keep in mind is that these days it's not hard to beat (both on price and power/torque capabilities) sophisticated transmission mechanism (meaning - expensive and containing many fragile mechanical parts) by simply using a larger electric motor with variable speed control and fixed gearing. Torque output at low speeds (which would be the advantage of CVT) is going to be limited by mechanical design and weight constraints of the transmission mechanism. [0] - https://en.wikipedia.org/wiki/Continuously_variable_transmission#Ratcheting https://en.wikipedia.org/wiki/Continuously_variable_transmis...
- kragen 7y agoIt's useful and practical for some applications (despite what the author says in the video) and has been on sale for decades. But if you use ratchets for the ratcheting, the variability isn't continuous but discrete (as he explains in the followup video you'll presumably watch soon) and if you use sprag clutches or something, the drive is friction-based.
- proee 7y agoDoes anyone have a good source for buying these types of odd parts? Years ago there was a website called "smallparts.com" but this was bought out and no longer exists.
- wlesieutre 7y agoI don’t remember exactly what SmallParts carried, but their closest competitor might be McMaster-Carr? https://www.mcmaster.com/ https://www.mcmaster.com/ And SmallParts I think is now Amazon Supply or something, but dear god would I not trust Amazon for that sort of purchase. Especially PPE like allegedly 3M respirators. Who knows how much of this is counterfeit.
- pselbert 7y agoThey were a life saver when I was going to school for furniture. We would order everything from them. Screws, bits, inserts, random bits of metal. Later I discovered that they provide CAD drawings for everything they carry. That was immensely helpful when designing things in say, Solidworks. If there were some screws that were called for it only took a visit to McMaster-Carr to get a 3D version of the real part.
- msds 7y agoMcMaster-Carr is great, but SDP/SI has a larger offering of gears/pinions/belts etc. Amazon Supply is pretty useless, and Small parts was never really great either.
- gxx 7y agoSmall Parts used to be an indispensable source of well cataloged parts for my projects. They shipped quickly and reliably and had a nice parametric search system. Sadly they were acquired by Amazon and effectively ruined. In theory Amazon sells the same parts but Amazon's search for specialized parts is dreadful, and when you find a part it's often out of stock or available with a long lead time from a dubious supplier. To me Small Parts is the classic example of how Amazon is systematically stamping out smaller but better suppliers. I'm not sure why Amazon even needed to acquire them. They could have sold those types of parts anyway. I wonder if they simply wanted the smallparts.com url, which now leads to Amazon. I should clarify why I liked Small Parts vs McMaster Carr: I'm in Canada and Small Parts would ship to Canada, but McMaster Carr would not ship here unless you had a business, but my work was for a hobby.
- oasisbob 7y agoAlthough not animated, the book makes for delightful bathroom reading: https://www.amazon.com/507-Mechanical-Movements-Mechanisms-Devices-ebook/dp/B008TVLYPC/ https://www.amazon.com/507-Mechanical-Movements-Mechanisms-D...
- thechao 7y agoThe book is also well outside of its copyright: https://ia800205.us.archive.org/1/items/Mechanical_Movements_507/Mechanical_Movements_507.pdf https://ia800205.us.archive.org/1/items/Mechanical_Movements...
- ordu 7y agoAs a completely unrelated remark: it felt strange for me to see a so ancient text but without Yat[1] and hard signs[2] at end of the most words. You know, I've never seen so old english text, only russian ones. Typography is recognizably ancient, but where are those old letters. Cognitive dissonance as it is. [1] https://en.wikipedia.org/wiki/Yat https://en.wikipedia.org/wiki/Yat [2] https://en.wikipedia.org/wiki/%D0%AA https://en.wikipedia.org/wiki/%D0%AA
- Nition 7y agoIf you go back a bit further you start seeing some things like that in English, for instance the thorn[1] and a "long s"[2]. [1] https://en.wikipedia.org/wiki/Thorn_(letter) https://en.wikipedia.org/wiki/Thorn_(letter) [2] https://en.wikipedia.org/wiki/Long_s https://en.wikipedia.org/wiki/Long_s
- ordu 7y agoIt is striking for me to see that alphabet might be changed without intervention of a state.
- Nition 7y agoHere's the start of the Wycliffe Bible from the 14th century: > In þe firſte made God of nouȝt heuene and erþe. Þe erþe forſoþe was veyn wiþ ynne and void, and derkneſſis weren vpon þe face of þe ſee; and þe ſpiryt of God was born vpon þe watrys. And God ſeide, Be maad liȝt; and maad is liȝt. NIV Bible (20th century): > In the beginning God created the heavens and the earth. 2 Now the earth was formless and empty, darkness was over the surface of the deep, and the Spirit of God was hovering over the waters. And God said, “Let there be light,” and there was light.
- yagibear 7y agoThis could be useful for design problems if they were cataloged or tagged, e.g. identifying input as rotary or rectilinear, and type of output.
- mohn 7y agoThis is awesome, and reminds me of Animagraffs [0], which has also come up on HN from time to time. [0] https://animagraffs.com https://animagraffs.com
- dyukqu 7y agoI didn't know this website, it's absolutely beautiful and even works in a mobile browser (Firefox Focus). Thank you for sharing.
- imraj96 7y agoThis is awesome. Thanks for sharing.
- doitLP 7y agoWow. Not only does it look great on my phone, but it loads quickly and the movements are seamless. Compare that to the 360 view of furniture on any big box website or cars on a dealers website.
- werds 7y agoI have not been this impressed for quite some time.
- 52-6F-62 7y agoWow. I'm trying to get work done over here. Thanks a lot. (No really, thank you! This is great)
- mzs 7y agoThe first one I clicked was a video, but this one has animations that are very impressive! https://animagraffs.com/mechanical-watch/ https://animagraffs.com/mechanical-watch/
- symplee 7y agoCan anyone explain movement 38? [1] Two identical gears start moving at the same speed. Suddenly, one gear slows down, then lurches forward at a much faster speed, and then returns to its starting speed. While the other, identically shaped gear, spins at a constant speed the whole time. [1] http://507movements.com/mm_038.html http://507movements.com/mm_038.html
- balfirevic 7y agoOnly relative speed will be determined by the geometry (these gears, in effect, change the gear ratio throughout one revolution). In this animation, the author decided that the left gear is driving the right one (while itself, presumably, being driven by a motor at constant speed or something similar).
- nachexnachex 7y agoThe left wheel rotates at fixed speed, it's the source of the movement (connected to the source of power). The right wheel rotates according to the relative radii between them, the constant speed of the left wheel dictating its speed.
- lowboy 7y agoRed is being driven by the axle at a constant rate, blue is being driven by the teeth of red
- Nition 7y agoThey are indeed identical but they're spinning in opposite directions, which in effect means one is flipped (going small->big instead of big->small). I believe that's how they can behave differently.
- Zenst 7y agoGear ratios. Think bicycle. By adjusting the distance from the center the ratio can be changed. Closer to the center on the driving cog (the left red one) will reduce rotation ratio and further away, will increase the rotation.
- Parcle 7y ago
- thunderbong 7y agoThe book is a real joy https://www.amazon.com/507-Mechanical-Movements-Henry-Brown/dp/1614275181/ https://www.amazon.com/507-Mechanical-Movements-Henry-Brown/...
- chadcmulligan 7y agoThe kindle edition https://www.amazon.com/507-Mechanical-Movements-Mechanisms-Devices-ebook/dp/B008TVLYPC/ref=sr_1_2?keywords=507+Mechanical+Movements&qid=1558518166&s=gateway&sr=8-2 https://www.amazon.com/507-Mechanical-Movements-Mechanisms-D...
- userbinator 7y agoGiven that these animations aren't interactive and run continuously as well as have a fixed resolution (I thought they were SVG at first, but zooming in disproves that), I feel like plain old GIFs would be far better for accessibility and maybe even bandwidth --- GIF's delta-frame encoding is surprisingly effective, especially for art like this.
- TeMPOraL 7y agos/accessibility/generic utility/ - I'm not sure I understand why would one want to use Canvas and code the animations where a GIF would do. Only two reasons come to mind - maybe the future plan is to make them interactive, or maybe the authors found it easier to hand-code the animations rather than bothering with an animation editor.
- cr0sh 7y agoThe author is the same guy behind the animated engines site: http://www.animatedengines.com/ http://www.animatedengines.com/ He explains how he did those animations: http://www.animatedengines.com/howto.html http://www.animatedengines.com/howto.html Which was rather laborious; perhaps his CAD and programming knowledge made it so that creating a physical animation engine was easier than other methods? Regardless, I wish he'd open source it; he mentions that he might - but it's been a few years now, so...
- kazinator 7y ago> http://507movements.com/mm_015.html http://507movements.com/mm_015.html "Power as 1 to 7". I don't think so: the cable's tension is paralleled six ways against the load, so 6 times the force.
- zaroth 7y agoI really like how the fill pattern of the rope lets you see in the animation the decreasing velocity.
- jcims 7y agoYeah seems like a nightmare to animate though.
- derfniw 7y agoThe smallest pulley on the bottom betrays how it is done. The rope is a line along the side closest to the pulley, the other side of it // the wire pattern are made by attaching triangle(-ish?) shapes to it. Only the bend at the smallest pulley is so tight it shows.
- kazinator 7y agoIf your 2D vector graphics system has support for rendering a path style with diagonal hashes across it, and to continue that path across different primitives (line segments, circle arcs) it seems that then the problem is then easy. You just render the entire cable as a path, starting at the fixed end. You render that path that for different positions of the pulleys and there you have your frames, with the diagonal hashes moving at their apparently correct respective speeds.
- Ensorceled 7y agoThis is not a standard pully system.
- oasisbob 7y agoEven so - it's "just" a compound pulley system. The advantage of White's pulley seems to be the reduction of friction by only having two axles, and synchronized rope movement so that the rope doesn't need to slip over the sheaves. [1] https://aapt.scitation.org/doi/10.1119/1.2339377 https://aapt.scitation.org/doi/10.1119/1.2339377
- s1mon 7y agoThese types of books are helpful and proof that it’s hard to innovate mechanisms. However the animated GIFs are not the clearest. I’m more of a fan of this guy’s Youtube channel with carefully modeled animated 3D CAD of tons of amazing mechanisms. https://www.youtube.com/user/thang010146 https://www.youtube.com/user/thang010146
- deleted 7y ago[deleted]
- contingencies 7y agoGreat for assisting with mechanical engineering problem solving. I just sent this to my team. If you like this sort of thing, we also discovered an awesome set of mechanical animations on Youtube done by an experienced Vietnamese mechanical engineer in a similar vain (but 3D drafted). URL not handy, hopefully someone can find/share.
- reitzensteinm 7y agoIs this it? https://www.youtube.com/user/thang010146/videos https://www.youtube.com/user/thang010146/videos
- quakeguy 7y agoYes, was about to post it too.
- reitzensteinm 7y agoWe probably all found it from the same HN post years back.
- harryday 7y agoPotentially: https://www.youtube.com/user/thang010146/videos https://www.youtube.com/user/thang010146/videos
- cwkoss 7y agothang's videos are awesome - quick, simple and to-the-point, and quite prolific in volume.
- londons_explore 7y agoThis is a dying art. The modern way to achieve any kind of complex mechanical motion is to attach a servo to the thing and use a computer to set a motion profile. A bit of a shame really.
- soulofmischief 7y agoI think it will always have its place. For example, I predict the increasingly suffocating digital zeitgeist will give rise to a form of competition which would be the mechanist's version of a demo scene. People will compete to "hack" non-digital mechanics as far as they can go, from analog sensors to mobile, programmable, multi-function automatons such as Theo Jansen's Strandbeests [0]. Resources like this, even if their maintainers have long gone, will become coveted gold mines. https://www.strandbeest.com/ https://www.strandbeest.com/
- sasaf5 7y agoWe can see a bit of this celebration of old tech in horology.
- cr0sh 7y agoI kinda hope this branches out into complex automata; I tend to wonder, though, if such mechanisms from the 17th thru 19th century could ever be improved upon in purely mechanical terms, but to me it's a fascinating thought.
- soulofmischief 7y agoDo you think Leonardo Da Vinci have been a programmer and digital artist instead of a mechanist/inventor if born today? And would his contributions have the same impact?
- cr0sh 7y ago> Do you think Leonardo Da Vinci have been a programmer and digital artist instead of a mechanist/inventor if born today? Possibly. He was a "robotics engineer" of sorts: https://en.wikipedia.org/wiki/Leonardo%27s_robot https://en.wikipedia.org/wiki/Leonardo%27s_robot https://www.leonardorobotsociety.org/the-robots.html https://www.leonardorobotsociety.org/the-robots.html https://www.amazon.com/Leonardos-Lost-Robots-Mark-Rosheim/dp/3540284400 https://www.amazon.com/Leonardos-Lost-Robots-Mark-Rosheim/dp... He quite possibly invented a mechanical calculator: https://www.educalc.net/197481.page https://www.educalc.net/197481.page So I could see him continue explorations of that nature. > And would his contributions have the same impact? Aside from his art, and possibly the various engineering commissions or consultations he was involved in - what was in his notebooks didn't see the light of day until long, long after his death. They were essentially "lost" until rediscovered much later. While he was alive, they were probably only seen by himself, and/or maybe a few students (speculating). On the art side alone, though - would his works have the same impact? That's difficult to say. If they were collected, preserved, and viewed by their owners properly. I don't know this for certain, but my guess is that most of the artwork of people like LDV of that era, their art were all private commissions, for the most part, outside of a very few pieces that were "publically viewable" - for various terms of "public". Those private commissions would have only been viewed by their owners, family, and maybe a few friends or acquaintances. Outside of those, the works would not have been public, until far later, as they were sold or otherwise "moved around" in the marketplace. Their value would increase or decrease almost at a whim, but also depending on how known the artist was, and other works by the artist. What we see today of these artists is probably mostly survivor bias. There's a good chance that there were others out there of a similar note who just didn't make it because of various reasons (along with a whole host of others who weren't as good, and their art - mediocre or whatnot as it may have been - became "trash" and didn't get passed down to us, but was thrown away over time). So - if such digital works were created - in 500 years or so, if the work was preserved (migrated from media to media, from machine to "machine", platform to platform) - it's quite possible they would have the same impact - after enough time passed (and everything else being the same). Pure speculation, of course...
- bagels 7y agoAlso excellent, along the same lines: Mechanisms and Mechanical Devices Sourcebook https://www.amazon.com/Mechanisms-Mechanical-Devices-Sourcebook-5th/dp/0071704426/ https://www.amazon.com/Mechanisms-Mechanical-Devices-Sourceb...
- tlrobinson 7y agoThere's a great 1953 Navy fire control computer training film that explains some of these: https://www.youtube.com/watch?v=s1i-dnAH9Y4 https://www.youtube.com/watch?v=s1i-dnAH9Y4
- always4getpass 7y agoThat's different. The original link aims at mechanical contraptions while yours at mechanical computation. Still equally impressive and interesting
- tlrobinson 7y agoTrue, but there's a lot of overlap in the mechanisms. The video explains how they can be used for computation, which I find even more interesting.
- JasuM 7y agoThis one's my favorite (although I haven't read the whole thing): "This movement is designed to double the speed by gears of equal diameters and numbers of teeth—a result once generally supposed to be impossible. Six bevel-gears are employed..." http://507movements.com/mm_226.html http://507movements.com/mm_226.html
- JudgeWapner 7y agoI read and re-read this for a solid 5 minutes and I have no idea how it produces the result. I get that gear D spins orbitally around the left-right axis instead of rotating clockwise, but I can't seem to grok how that would produce 2x rotations.
- ElCapitanMarkla 7y agoThis is blowing my mind at the mo, I need to see it working...
- JudgeWapner 7y agoI think I got it. The simplest way I can describe it is the gear on the far right is turning the whole square frame on the left because the little shaft turns inside the big shaft. The 2nd gear from the right (that is connected to the big shaft) is turning the "thing-thats-already-turning", so you get 2X rpm.
- neilk 7y agoNot a mechanical engineer but I think this is what is happening. Note that Shaft F and shaft D are made to rotate in opposite directions. Then another gear is made to pit those motions against each other, by means of that wacky rotating frame A. To see why let’s unwrap it from a polar coordinate to something more linear. Imagine a wheel with gears resting on a rail with teeth. The wheel has an axle going through it. If you drag the wheel’s axle forward horizontally that’s like what Frame A does to impart 1x rotation. But then the rail is also moving backwards, giving you 2x rotation. I think!
- nthnclrk 7y agoThis is the only link I’m always happy to see resurface when posted here on HN. Every single time (maybe this is the 5-10th time?) I end up watching mesmerised for 50 movements or more.
- lqet 7y agoThis is so cool! http://507movements.com/mm_123.html http://507movements.com/mm_123.html http://507movements.com/mm_185.html http://507movements.com/mm_185.html This is basically how the pantarouter by Matthias Wandel [0] works: http://507movements.com/mm_246.html http://507movements.com/mm_246.html Or take a look at this weird engine: http://507movements.com/mm_423.html http://507movements.com/mm_423.html I am a bit nostalgic/sad about the fact that many young people who would've wanted to learn this craft a century ago are today choosing software engineering. [0] https://www.youtube.com/watch?v=8wZ1v4PIsYI https://www.youtube.com/watch?v=8wZ1v4PIsYI
- hannasanarion 7y agoMaking movements like these are really popular in the 3d printing community. Like this video about number 049, a crank that only turns clockwise: https://youtu.be/y44_xMFsPQQ https://youtu.be/y44_xMFsPQQ
- skykooler 7y agoFrom the description of 423: > The piston and crank connections are such that the steam acts on each piston during about two-thirds of the revolution of the crank, and hence there are no dead points. Quite a clever solution to allow startup in any position!
- lqet 7y agoA few months ago, this video [0] from the 30ies explaining a differential was posted on HN. It also is extremely interesting to watch. Minute 5 is very illuminating. [0] https://www.youtube.com/watch?v=yYAw79386WI https://www.youtube.com/watch?v=yYAw79386WI
- fnord77 7y ago#9 is basically a constant velocity transmission (CVT) that's used in many small cars these days (and motorscooters)
- gene-h 7y agoThere's also DMG-LIB[0] and KMODDL[1] which contain mechanism animations along with CAD models of some mechanisms. It's been mentioned before, but thang010146's youtube channel also has many of these mechanisms, sometimes they even have CAD models available of their models. I suspect that thang010146 might actually have the largest digital repository of mechanisms. [0]https://www.dmg-lib.org/dmglib/main/portal.jsp https://www.dmg-lib.org/dmglib/main/portal.jsp [1]https://engineering.library.cornell.edu/kmoddl https://engineering.library.cornell.edu/kmoddl [2]https://www.youtube.com/user/thang010146 https://www.youtube.com/user/thang010146
- fosco 7y agohere is the index which describes high leverl what each movement is for. http://507movements.com/toc.html http://507movements.com/toc.html
- tonylemesmer 7y agoYet another site here: https://www.mekanizmalar.com/ https://www.mekanizmalar.com/
- jzwinck 7y agoI like http://507movements.com/mm_398.html http://507movements.com/mm_398.html which is a programmable drive system. Constant rotation input can give you a cyclic but irregular and arbitrary output movement. Another good programmable mechanism is a spring made from sheet metal. Take a flat piece and cut a spiral with the width of the material proportional to the force you want at that part of the spring's travel. Stretch it out to form a little tower, with the base on a solid surface, and the load carried on the center of the spiral.
- vanderZwan 7y ago> Constant rotation input can give you a cyclic but irregular and arbitrary output movement. Arthur Ganson has used that to make kinetic artworks: https://www.ted.com/talks/arthur_ganson_makes_moving_sculpture?language=en https://www.ted.com/talks/arthur_ganson_makes_moving_sculptu...
- 2sk21 7y agoCurse you - I won't be able to get any work done today until I have seen all 507 of them :-)
- littlepinkpill 7y agoIt’s surprising that this crowd seems uninterested in the non-https status of the (otherhwise very cool) site. Have we decided it doesn’t matter? No sarcasm intended. I’d really like to know.
- some_random 7y agoIn practical terms it doesn't matter, which is probably why HN doesn't seem to care. But in my opinion, it's free and easy to get an ssl cert and so from a norms perspective it should be viewed as non-negotiable today. It doesn't actually add much to the website but it's best practice, like changing the default password on a raspberry pi even if you never plan to network it.
- syn0byte 7y agoHTTPS Everywhere is dumb security theater that desensitizes users to potential issues when it should otherwise matter. When only important shit you really wanted to encrypt was encrypted and you get a cert warning you took notice. Now one in 10 sites with an "easy/free ssl cert" that expired has normalized cert warnings on pages with cat pictures and bank sites alike.
- jandrese 7y agoAre you worried someone is going to inject a false movement into the page? I'm not giving the page any personal information. There isn't even a login. What would you be guarding against by switching to HTTPS?
- mbostleman 7y agoThis type of thing is very dangerous for me. I can end up browsing these for hours. Very similar to knots, how each one is tied, what it's pros and cons are, the history behind them, etc. I wish like knots these mechanical movements had names instead of just the index number.
- cr0sh 7y ago> I wish like knots these mechanical movements had names instead of just the index number. Some do have "names" (most don't), but you have to go to the movement itself to see it: http://507movements.com/mm_212.html http://507movements.com/mm_212.html This one is common, and known as the "Geneva Mechanism" or "Geneva Stop": https://www.britannica.com/technology/Geneva-mechanism https://www.britannica.com/technology/Geneva-mechanism The actual book the animated site is based on: https://archive.org/details/fivehundredseven00browiala/page/n1 https://archive.org/details/fivehundredseven00browiala/page/... ...the index (table of contents) references them by name.
- pzs 7y agoThose who find it interesting may also be interested to check out Polhem's mechanical alphabet [1], which was created nearly two centuries earlier. Fun fact: I learned about it from a Pettson and Findus tale I read to my children, and I was lucky enough to see parts of it in the museum in Stockholm [1] during last summer. [1] https://www.tekniskamuseet.se/en/learn-more/swedish-inventors/christopher-polhem-the-mechanical-alphabet/ https://www.tekniskamuseet.se/en/learn-more/swedish-inventor...
- bobjordan 7y agoI truly love it. Still, could be better with some SPA love.
- allochthon 7y agoUsed to work with Matt Keveney, the author. Pretty cool guy.
- psadri 7y agoAnyone up for building all of them with legos and creating a museum of mechanical movements?
- cr0sh 7y agoSome of them would be virtually impossible to build with Lego, as they rely upon machining just not really available in the Lego space (unless there's a wizard of Lego out there that could fashion such parts using certain strange Lego parts from certain sets, like the Bionicle series and such). But a lot of the more basic mechanical movements could be easily constructed; those with simple pulleys, gears, levers, etc. So you might not be able to construct all of them, but you probably could construct a great many.
- psadri 7y agoWe could 3D print some parts? Or scale up the whole thing to allow building complex parts from smaller LEGO pieces?
- fillskills 7y agoBest distraction ever. Thanks for sharing