5 Useless but Satisfying LEGO Mechanisms

[@hollt693]

Number two is far from useless. You're converting an extension spring (rubber bands, in this case) to a compression spring that 1) has no metallic components, meaning it's non-conductive and won't rust, and 2) is fine-tunable by changing the peg positions and/or the number/type of rubber bands. Number 3 could be used anywhere you need to convert between rotational motion and oscillation. If you had a flywheel to keep it from seizing, you could possibly make a pendulum powered vehicle. If you used bent liftarms for number 4, you could make a Hoberman Linkage. And a Trammel of Archimedes is far from useless, since it can be used to draw ellipses. If instead of just using a short, peg-to-peg liftarm, you used one that extended outside of the frame, the end point of that liftarm would trace an elliptical path, where the difference between the major and minor axes of the ellipse is equal to twice the distance between the centers of the sliders.

[@quinn_brock]

number one, though niche, could be used as some form of controlled travel for a mechanism without the need of other stopping mechanisms

[@Allthenamesweretaken17]

all of them could be used to produce dopamine

[@devhermit]

ad. No. 2 It's useless as shock absorber because it's just spring. Absorption is negligible. You can use spring to retract absorber (e.g. made of LEGO pneumatic cylinder filled with water or other non compressible fluid and with both air/water ends connected to each other) to it's "neutral" position.

[@hollt693]

@@devhermit Vehicles have never really been my area of interest/expertise, so I'll take your word about No. 2's utility as a shock absorber.

[@devhermit]

​@@hollt693 This is basic knowledge far from interest/expertise in area of technologies used in vehicles. However, elementary schools in Poland are significantly different from those in the West.

[@EvanMoon]

You say that it’s useless, but you know you’re giving people ideas

[@Jimmy-xx2co]

Or cool knick knacks for their desk

[@zackerysheldon7362]

The thumbnail could be used as a switch if upsidedown

[@zackerysheldon7362]

Of course you did that in the video lol

[@cutlass8783]

The slider could be used as a windshield wiper

[@burger794]

​@@cutlass8783lol

[@ElliotsLegoCreations]

The way the music cuts and he kind of pauses when he made that star accidentally was what got me hahah

[@Captain_Timezone]

Totally a star

[@ElliotsLegoCreations]

@@Captain_Timezone yes.

[@WarChallenger]

That third mechanism actually seems perfect for a dual-light switch setup, like for stairwells without windows. One light switch can be rigged by cable or electric motor to the other so they both mirror each other. When one switch goes up, the other does as well, just by simple rotation triggered by the first one. That way the on/off is synchronized, rather than using the existing “or” gate circuit houses do today.

[@insederec]

This is a million dollar idea right here. As in, if I had a million dollars, and OCD, I'd have that built into my living room.

[@kjamison5951]

LEGO remains one of the most underrated products. When they first introduced Technic parts in the late 1970’s and followed that with sets for schools to promote understanding of mechanisms and then computer control, we are only limited by our imagination and the durability of the plastic. There are things that even LEGO engineers haven’t considered. This is great!

[@dirkhaar2243]

2 is to change linear into circular movement or vice versa, 3 is for stirring, 4 to reach around corners of roof edges, 5 can be used for routing or drawing ellipses.

[@DrPet80]

Building Lego is never useless!

[@ninjireal]

>builds trammel of archimedes

[@Blorkus]

The slider looks like it could be used as a sort of boat paddle/scuttle mechanism, with the way it twists back and forth.

[@rick420buzz]

When I was a kid, I had an Archimedes Trammel toy, it was called "Blankety Crank".

[@Bricks.Master.Builders]

Very cool mechanisms, not useless at all !!

[@Diam0ndLatte]

2:11: This one could actually be useful for a pick and place mechanism

[@skulkingshadow]

Or some sort of insane lever combination lock

[@daisyvishwakarma7998]

3rd one was useful because if you want to make something go up and down then it will be useful. Like a tow truck which is having differentials in all axels but not in 1 axel which can be switched up and down

[@Alan_Planells]

The offset scissors mechanism is used in some official Lego sets from the line "competition" (Cyber Strikers Cyber Slam, for example)

[@natbarmore]

I was promised useless mechanisms, but at least 3 of these are excellent solutions to some tricky problems. 😁 The curving scissor lift almost became how my all terrain vehicle remake deploys its mobile lab. But I couldn’t find the right combo of leverage, rigidity, and range of motion.

[@in1]

Sorry to disappoint your expectations :)

[@piggyplayzmc93]

The offset scissor would be useful for a jack in the box

[@KrustyKraber]

0:46 good luck separating those afterwards 😭

[@in1]

Shouldn't be that big of a problem. Had to disassemble them at least six times before/after/during the video recording and I don't remember it being challenging. An even then a brick separator should do the job

[@KrustyKraber]

@@in1 fair enough! Glad to know that your fingers / fingernails didn't suffer at all.

[@-ul7lh]

@@KrustyKraberI had problems 😭

[@eliselinger3624]

You should make a car with those shock absorbers

[@aubinreymond3949]

The slider is very cool, thanks

[@mrpugbot]

I plan on using some of these now

[@sumairscreations]

At 1:28 this made me surprised like it went to the MOON

[@zecuse]

If you don't have a ruler or tape measure, but need repeated consistent lengths, mechanism 1 gives you that. Just make sure that when the wheels lock up, you don't drag them.

[@KalaAltheaBalik]

Satisfying design is never useless, just without utilization.

[@TimeLemur6]

I could see the slider being useful for a purely mechanical indicator in lieu of an LED.

[@rowanrobinson]

Useful at keeping me up another 5 minutes

[@Kurtaurus]

The 3rd is great, I've been looking for something like this

[@fuzzyhead878]

This feels like when the ancient greeks created an early steam engine as a cool mechanical toy, only for it to snowball into a host of inventions many (many) years later.

[@crazygalemt]

The shock absorber can be turned into a projectile for some kind of cannon

[@thepawofdoom5001]

All of these are useful 😂

[@JvT-34-85]

Good luck getting numbers two apart 😂😂

[@in1]

With a brick separator it's pretty simple

[@JvT-34-85]

@@in1 haha yea

[@justarandomchannel1319]

I just got some technic peices and these show me some cool things i can make with them

[@Smucklz]

Id argue that the last one is the only one that could be considered useless

[@Ahoychocolate6]

#3 could be useful.If you want to make a gearbox for cars,you can do this.Of course it is not the actual way a gearbox works but it would still do its job perfectly fine.

[@Indik47]

This is awesome. Thank you! Will show it to my kid, he enjoys making such things

[@MechanismAnimation]

Good mechanisms.

[@theludonarrian]

How is the first one counterintuitive when it works exactly as we would think it does?

[@anonymous.3458]

The first one could be used in coordination with a reverse mechanism to creating a robot that automatically drives back and forth between two points.

[@rezusdanieltudorsLEGOchannel]

Nice video! I never heared about some of these mechanisms! Is good to learn new mechanism and building tehniques for my MOC s.

[@Jonmcb]

i think ive been here since 1k i started watching you on an ipad lmao its crazy how far youve come

[@random-e4s]

all of these could be really useful. you just need to find what you want them to be-the stars could become wheels for example

[@deathsheir2035]

Archimedes trammel is great for drawing elipses, so I wouldn't exactly call it useless.

[@skijump25]

these are hella cool

[@charliemollard3262]

Beautiful builds.....but the cracked red piece in build 5 hurts me.

[@flatwellrichsum]

Awesome! How the heck can you come up with these things?!

[@solcario2]

1:20 "let go. Let go. Let go. Let go. YESS!!"

[@StrimnikBro]

So Epic!

[@yanfengxu3574]

Amazing video! Personally, I don't think it's useless: it gave me a lot of ideas. But, on the other side, maybe showing every step could be good for beginnners to ameliorate your video.

[@akirandrake414]

Number two could be used as firing mechanism on a larger build.

[@aprameyat5599]

You made a star

[@benna10]

i love the archimedes trammel

[@katzmikehd]

Sameeee

[@WoodlandDrake]

Imagine how technologically advanced humanity would be if the ancient Greeks had LEGO to tinker with

[@Smug_noob]

Someone should do that with a time machine

[@jesp8329]

can you make a mechanism video where there is an eye movement mechanism of like an animatronic thank you😊

[@Ken15643]

1:27 made me smile.

[@Legtlizrd]

That custom shock absorber isnt useless. That can be used as a really big mag for a gun.

[@jasmijnariel]

This is how plate warmers work in big food restaurant.... they stack like 50plates that sink in a heater and the springs always pushes back, so if you take 1 plate, the next pops higher

[@Auskaa]

I would be shocked, but it was absorbed.

[@ger_weet]

5 *useless* but satisfying LEGO mechanisms. No. 2: *shock absorber.* HUH?!

[@Shashu_the_little_Voidling]

I'm pretty sure all of these have a use in real world engineering

[@MuscoviteDN]

Overshooting top)

[@phroogo...]

you can use #2 to launch a projectile

[@kudlathesiberian]

i know, kind of wanna make a launcher with it

[@saplingsolver]

Number 3 is a slapping machine

[@fluffydemon2782]

actually the slider kinda looks a automatic gear box handler lol

[@jakematthews6982]

Number 2 is a spring. Not a shock absorber.

[@xxalphashadowwolfxx]

most of these have some use like i designed an entire engine around the slider mechinsim just now

[@xxalphashadowwolfxx]

In addition just to spite you even more I designed a Trammel engine

[@ItAllGetsHazel]

I could see uses for most of these

[@alternate-playz]

Number 3 is for real far from useless. Its a lever

[@saplingsolver]

No it’s also a slapping machine

[@ConerWeber]

im watching these so i can make a L/R lego beyblade launcher (launcher is lego not beyblade[thing to hold beyblade is from a spare launcher])

[@Haxyi_cmotrish]

0:47 показалось

[@aidanmmulv]

suppert

[@AkkarisFox]

Definitely not useless

[@kevinolver39]

We always called number five a BS Grinder

[@paweborkowski6959]

I came to show my suppert :)

[@Raptor890]

In the first girls had a "neuron activation"

[@petercdavidson]

Commenting to show my suppert

[@Idk-eq1ex]

Taking that shock absorber will not be satisfying

[@dirkhaar2243]

You just didn't find out what it's good for.

[@MrSafronekser]

2, 4, 5 могут быть полезными. 3 доработать и тоже будет полезным

[@jasmijnariel]

Nothing is useless! Exept for tiktok

[@grapheneperovskite1428]

vous êtes français ?

[@diogoduarte369]

Showing my suppert

[@thegalaxy6969hi]

Me when im bored

[@etopsirhc]

Set 8257 would like to have a word with you and #4

[@OfficialAsd_vins]

2nd is just a Lego gun

[@christopherwebster6354]

These are fidget toys.

[@Naddoe-roblox]

5 is not useless at all

[@cidag9]

Jdhdjdhxjjfhdbdhdjd😮😮😮😮źzzź1+28=98

[@Хорошийканал-ю1б]

Яеb 😊

[@colinbuck8687]

Sorry, but I don’t go around showing my suppert to just anyone.

[@Naddoe-roblox]

Non of these are useless

[@lucasvandenberg7350]

First

[@foxforfoxes2872]

e

[@KriskaIriska-wp4xo]

כעיקרון

[@MrConverse]

No audio commentary = 👎🏽

[@in1]

Feel free to hire a voice actor and send me the commentary, I just can't speak English fluently

[@melissasegura4411]

Hi pls pin this