Requested Lego Experiments 3

I love being able to hear the difference when the motors are powering the light

Huh. I'd always put chains on gears with slots facing inward without giving it much thought, assuming for some reason it'd be more structurally sound. Today I learned outward is technically better. Thanks!

As Lego combat robot builders, the chain test has got to be one of the most important discoveries made in a long time. Thanks for doing that!

I've never thought of generating electricity with Legos but now that I think about it, it's really cool

It makes sense that the chain links facing outward would perform better with increased torque loading. When the gear pitch angle pushes the chain outward, the outward facing links will not pull apart

Try to squeeze as much time out of that "Gravity Light" system as you can, maybe adding weight and using pulleys? It just feels like that concept has quite some potential. 👍

It's amazing to me how attaching the light audibly slows down the RPM.

Depending on which side you point the chain, it can either be a very strong link or a failure point. I think this might be intended, considering there's other methods to link up plastic chains that are stronger (old Xerox printers, the big ones, had plastic chains, they were quite strong, but if you exceeded the breaking point, they'd snap).

0:41 You can really hear the power pull on the generator Slows it down a bit

That falling weight light thing is actually so cool. I can see something like that being great for children as an alternative to night lights, so instead of having a light on constantly, the parent just clips the weight to the top and it goes down. 5 minutes may not be enough, but with a better similar system you could quite easily draw it out to 15 minutes, which should be enough to fall asleep in, or if not then just do it again. It would also work well for night time toilet trips as a temporary light source that goes off by itself.

The biggest difference for chain link orientation is if they are used as treads, for a small powered tank for example. If the inwards method is used, obstacles will very often cause the chain to split, while if the slots are oriented outwards, the chain will hold.

2:30 This sounds like the cars did in the Lego racer games :)

2:40 cool beat!

2:54 YEET

Can I just say that I love the sound that the 71427 makes when you spin it like you did at the 1-minute mark? It's very unique if you ask me.

That test with chain was genuinely surprising.

That's cool. Can you set up that gravity light with a ratcheted lego chain. I can even imagine opening a closet door that pulls the chain, charges the mechanism and give you enough light for a couple of minutes. Always loving your video, thanks for making them!

I didnt even think of the differences between inward facing and outward facing ones would have. Now that I see it, of course the inward facing links do poorly against higher torque! Love your videos man, keep em going!

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Nice, like it that you can hear the motor work harder when you put on the light. shows that used energy needs more power