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About aeh5040
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technic
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Technic
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Most Challenging Mechanism
aeh5040 replied to Tobi Wankenobi's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Probably the Tower of Hanoi solver. Still not completely happy with it, as it's not really reliable enough to run at a show: https://youtu.be/MHBsQS34Tu8 -
Powered Up reference book wot I have writ
aeh5040 replied to idlemarvel's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
This looks extremely useful! Thanks for putting in all this work. -
42179 Planet Earth and Moon in Orbit
aeh5040 replied to Ngoc Nguyen's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I've now built this, and I regard it as one of the best sets ever. It's a pity there wasn't a bit more effort put into making it beautiful (especially the base), but the mechanics are outstanding, and it's a real pleasure to witness it IRL! -
42179 Planet Earth and Moon in Orbit
aeh5040 replied to Ngoc Nguyen's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
To be more precise, to a good approximation the Earth's axis points in a fixed direction relative to the stars (towards Polaris, in fact). This is what the model does, which requires that this part does rotate relative to the main sun-earth arm. This is achieved through gearing. Arguably the nicest feature of the model. -
What is your favorite Technic Set and why?
aeh5040 replied to Lego Tom's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
8480. Incredible blend of form and function. Every part is there for a reason. Some of them for more than one reason. Also some nostalgia as it was my first complex post dark age set. -
Questions for LEGO Engineers
aeh5040 replied to decemberssecond1's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I am far from a typical builder, but fwiw: Ideally I prefer to do things that have not been done before, so there is no actual mechanics to copy. Mechanics always comes first. If I can shape it into something elegant, that's a bonus. Whatever parts are needed (but in practice not much system). Dunno really - ideas from random sources, imagination, building on others ideas... Lots of trial and error. Start with the hardest bit. Lego has its own constraints. See above. Start with official sets. There is lots to learn from the designers! -
[MOC] Synchro Pods kinetic art - now with instructions
aeh5040 replied to aeh5040's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Thanks for the enthusiasm! Indeed I had to do some prying to adjust it. There is actually a better way, which is to use clutch gears, like in the later "Pangolin" Surprisingly, they do not seem to gradually slip over time. Of course, it would need a redesign to incorporate them into Synchropods. I've been meaning to do this but have not got around to it. I also have the key parts collected for a 33 pod mega version.... -
42168 John Deere 9700 Forage Harvester
aeh5040 replied to Ngoc Nguyen's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hopefully this will quiet down all the moaning! 😉 It looks quite useful. Even just for rigidly connecting two parallel liftarms it is quite handy, while the additional hole brings plenty of further possibilities. -
42179 Planet Earth and Moon in Orbit
aeh5040 replied to Ngoc Nguyen's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Yeah I agree. I like the look of many parts of it - the rings, the core structures etc. But the base is just a mess. I guess some of it is colour coding to help with the build - the unsecured 3L blue liftarm matches the exposed blue axle pin (which I think should be 1/2 a unit lower btw), and there is probably a red one on the other side. But it would be so easy to tidy these things up at the end. Still, let's not lose sight of the many positives. It's a very clever piece of engineering, and completely unexpected as a set. We can hope that it heralds a new era of interesting mechanisms. -
42179 Planet Earth and Moon in Orbit
aeh5040 replied to Ngoc Nguyen's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Wow! Brilliant! This is clearly it. I am quite surprised and impressed that they got it so accurate, and even more impressed with your powers of deduction. I had actually started to ponder the possibilities of 8t-36t, but I don't think I would ever have got it. -
42179 Planet Earth and Moon in Orbit
aeh5040 replied to Ngoc Nguyen's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Oh yes, well spotted! Although I wonder whether that is a 20t or 36t (or even a turntable again). It is looking very much as if all the gears are horizontal, so really the task is to connect the 20t that turns the big turntable with the central vertical axle, with the correct spacing and ratio ... I've kind of got obsessed with this! -
42179 Planet Earth and Moon in Orbit
aeh5040 replied to Ngoc Nguyen's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Cool - thanks for sharing. There are some tantalising clues in that last one. The teeth on the lower grey (16t?) gear appear more widely spaced than the black one above it, suggesting that we are looking at the former head-on while seeing the edge of the latter. Don't know whether that helps, but I still think there are probably gears not on the centre line of the handle. Is it possible that the black gear is another small turntable, not a 36t? Not that this would necessarily help with our difficulties! Clearly we need to track down the young lady in the photos and bribe her to spill the beans. -
42181 VTOL Heavy Cargo Spaceship LT81
aeh5040 replied to Ngoc Nguyen's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
If you've got it, flaunt it? -
[MOC] Yet another orrery
aeh5040 replied to Davidz90's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Very impressive! Possibly taking the prize for [gears : other parts] ratio! -
[MOC] Sun, earth and moon orrery
aeh5040 replied to EWay's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Can't have too many orreries! That's very nice and neat. I like the exposed gearing. Of course strictly speaking you need to offset the sun slightly to account for the orbit of Jupiter 😉