12 Output Lego Motor Multiplexor

[ohaidere12]

0:00

[mudaphucker]

The master

[Nateconq]

what i want to know is, does it have a way of knowing if it is making good contact with the gear? I figure you could use the touch sensors for some kind of feedback system. otherwise, a little outside interference and you may get gear slippage.

[jwballison]

LOLWAT!?!

Very clever design though I can't think of too many uses for it!

[CrazyMan15218]

what does this do?

[CrazyMonkey124]

Seems more like a demux.

[HomerJEDL]

but will it blend?

[Ajanek]

WTF is this that I watched?

[metalman343]

that is so F'N awesome. That center pinion gear looks so cool when it goes from stationary rotate to a new position. So cool. PROPS!!!

[MMinecrafTT]

what if you want to run 2 wheels?

[schmelzbrot]

@MMinecrafTT Maybe you could use two rotating motors ;)

[MMinecrafTT]

@schmelzbrot smart XD

[schmelzbrot]

@MMinecrafTT Smart and easy, of course =D

You could also move the rotor vertically and, depending on that position, turn a second gear that transmits the power to the second wheel.

[LegoAces]

It should be possible to programmaticly cause the gear to counter-rotate as it switches from one output to another so that it doesn't bump the ones in the middle. A cool design. Good job.

[CHR1Z1224]

isnt that how a car shiftes gears

[robbbnibn]

@CHR1Z1224 NO

[YouBeTrolling1337]

@CHR1Z1224 NO

[sasukekid]

It's neat, but I don't see the purpose of a motor-based time division multiplexer. The main driving gear is even causing the in-between gears to spin a bit. It just doesn't seem like the design would be useful for any application, aside from ones arbitrarily created so it doesn't go without use. If the multiplexing happened in order, rather than sweeping around and randomly feeding a gear, it'd serve a much better purpose....I don't know what, but something.

[pennerspike]

@sasukekid I doubt that its random only. It could be used as a dispensing machine. Say, 10 different ingredientes for medical pills? Just a thought.

[sasukekid]

@pennerspike Well, introductory microcontroller kits (like my BASIC Stamp kit) don't normally have full-on randomness for values (just a "random" pattern that's just a non-sequential pattern that always happens when random is issued), so sure it's probably not really random per se. However, like I said, the main driving gear is causing the in-between gears (which it's not targeting) are being spun a little by it as it passes. Causing that main gear to lift between channels would fix that.

[legofan431]

And now build it in a machine, that this awesome thing is sinful.

[pingpongpung]

Can you make the middle part go up, so that when it rotates to another sprocket, it doesn't touch the sprockets inbetween?

[Gunner3210]

Very cool.

[AnonymoussourceL0L]

I'm sorry, I'm not understanding the point of this awesome machine. I'm not bashing it or anything I just genuinely do not understand what it does and why.

[321Carl2000]

@AnonymoussourceL0L It turns 2 motors into 12.

[hifeyracer]

automatic dj ftw!

[LiquidChem]

bricks have just been shat

[CreeperFighter]

Your amazing :D

[ward8917]

omfg, that's just amazing.

[ozzymuzzy246]

this is genius

[thelegoenginefreak]

whats the point of this

[FalcoTheImpaler]

You could also add a reverse gear with another gear on the opposite side

[ipullstuffapart]

it needs rotation compensation, if you were doing anything that needed to be accurate the cog hitting the others when it goes wouldnt be very good

[minesmit3214]

i got an idea for it make it so when it hits one of the gears (having generators on them) so when it gets the generators spinning it gives itself energ to keep going

[makmegs]

@minesmit3214 sorry m8, that would break the second law of thermodynamics. Entropy will always be increasing and you will lose energy through friction which will eventually bring the whole thing to a halt

[ZnEaKySpyNL]

So.... what time is it in legoland?

[jimday666]

very nice and cheaper than a multiplexer pcb

[DoctorSomeone]

i don't get it

[robloxspaceman]

WOW! How its sooooo cool!!!!!!!!!!!!

[ThaRealElTigra]

A fascinating contraption, but since I'm not familiar with the mechanics, I have to ask:

- What the hell is a multiplexor? Is it a gearbox?

- If not, what is it used for?

[largeleif]

@ThaRealElTigra This is not my vid but i felt like answering your question anyways. A multiplexer is a way to control many outputs with just one input. I guess he really has 2 though, one to select which gear to use and one to power that gear. It's basically like having 12 motors for the price of 2.

[rubikbrewer]

@largeleif A multiplexer has a control input that decides which output to send the data input to. In this case the control input goes to the turntable motor, and the data input is connected to the drive motor.

[Njallzzz]

@rubikbrewer that's not completely correct what you are talking about is a de-multiplexer, something that takes 1 input and a selector and turns it into multiple outputs. A Multiplexer is a device that takes multiple inputs and turns them into one output (and selectors). Multiplexers and De-multiplexers are often called mux and demux, they are used in electronics a lot to reduce the number of wires needed between devices in motherboards for example.

[tucense]

Or.. you could just buy 12 motors.

[4tilo2]

guckt euch mal meine videos an :D

[robnate114]

i dont get it

[mortenfyhn1]

Would be nifty to have it spin the inner gear slightly while the outer turns, so the gears it travels past keep their position.

[jncmaster]

co to kurwa jest ?

[wow917]

sorry, bit 'daft' but what is the purpose of a motor multiplexor? geuine question btw! :$

[ZeroBlitz36]

@wow917

A single NXT "brain" can use 3 motors in the same time. Whit that multiplexor he can practically use more "motors"

[timonix2]

i am building a much more advanced multiplexor for the old RCX allowing to controll up to 8 motors in any combination in any direction. they do lose the function of PWM and voltage regulating... I am also working on one that should work for the inputs as well giving it 3 sets of inputs. you can have 9 sensor but they cannot be read at the same time

[stoneynine]

imagine starting them in the correct position.

[MYEYESONECONOMY]

what is a multiplexor, what does it do?

[bachaddict]

@MYEYESONECONOMY it allows the two motors to control any number of functions in a model, just not at the same time. for example, this could be used with 3 outputs to control a digger arm.

[Natesmodelrailroad]

Epic win, but what would you use it for?

[561inurface]

@Natesmodelrailroad that is the part where something called imagination kicks in

[Natesmodelrailroad]

@561inurface: Yes, I know...but I don't have one.

[mangapuy]

@Natesmodelrailroad  surprise buttsecks @561inurface indeed it kicked in

[Jimpiedepimpie]

what does it do?

[19f97]

boring -.-

[RussNinjaassassin]

@19f97 its for many functions, just imagine how much you could do with it, a lego company in small size or whatever that needs 12 motors,

[19f97]

@RussNinjaassassin good idea =) nice

[zker666]

the eighth one was never stopped on -.- 

[AnonymoussourceL0L]

lol, I can't read :D jk

[1crocodilekid1]

what is it suppose to do

[UnBobleavable]

a cool feature would be lift, then set down and spin

[brentusman]

thanks... good idea for my  LEGOfactory (house-building one)

[morethejamesx39]

I can't believe it. The gear never touched the bottom one.

Good 12 Output Lego Motor Multiplexor though

[ThePraash]

Hmm, this could be a very good mechanism for my lego candy machine, for e.g. a selector for different candies. Could you tell me a bit more about the mechanism?

[BASS0090]

It's fascinating how many different things you can build with these... When noticed the title of this video, I thought that you have build a thing, that will allow 1 motor to run like 12 things :D

[d3dreaper]

how do you tell time on that clock???? "it's 9 o' wait now its 4 o' no now its 11, now 3, now 6.... WTF?!?!"

[LoadedWingshot]

you know, you just gave me an idea...

[Evi1M4chine]

Cone-shaped cogs would be better though.

[poopy910555]

Only problem is that if you need extreme precision, the gears turn every time it moves, so hence forth i would make it move up, then down onto the gear it wants

[Tscrubs27]

was bringt das?

[datawraith3080]

braking mechanism would not work, it would shred gear teeth...

somehow you need a clutch mechanism, so that the motor that rotates the assembl disengages all gears, until a gear is selected and the arm stops rotating

[flemish4]

@datawraith3080 how about spin the power motor backwards when moving past making it stay still?

[datawraith3080]

@flemish4

yeah that would work...

i suppose i always like to make a simple issue overly complex HAHA

[TheJimJames40]

lol

[561inurface]

holy shit! that could be used for a crane! it would be able to move multiple parts! the only problem is that you neet a breaking mechinism so that the gears dont spin freely when they are not being used

[ridebadger]

cool

[jgenius07]

superb..it will find utilization in many areas...

[theutubelurker]

is this that dial0 that used to be on phones,wat does it do,what is multiplexor

[jakefrederix]

@theutubelurker a multiplexor (abbreviated as mux) is a component used in CPU design. A demultiplexor (abbreviated to demux) does the exact opposite, it selects one output from multiple sources. When the CPU is asked to calculate something (a sum, product, difference, ...) it calculates the result of all possible operations, and uses demux to select the right result.

[Badachelli]

HE COULD MAKE A CLOCK!

[kevindrop]

what does it do?

[JKTCGMV13]

what?

[bigdan4712]

very nice....you shold be working for motoman or fanuc

[IllegalMavamaarten]

This is genious. Not very usefull ( to me ) but it's absolutely GENIOUS :D

[koshkatto]

did you use the encoders???

How could you stop the gear that moves the other just right in this??

[badalice07]

Could help me pick which tie to wear for the day. or even select my bag O chips from the wending machine.

[tubeforyou9422]

I don't get it !!

[Nxt1engineer]

nice made good thinking

[kabluwi]

hahahaha could replace the board spinner in twister XD

[Mulchanor]

Lego's first brick set dates from 1949. The company fist started with wooden toys in the 1930's. In the 50's they also produced model cars in HO scale. The first real building sets arrived half way the 50's. Technic lego started in 1977. So lego exists already way over 50 years.

[Dominoe11112]

what you could do is so that every time you go around you dont move each "motor" a little, spin the driver gear the other way, this way they shouldn't move.

[iansilvr]

I agree with Dominoe11112. Because the current program stops the drive motor during spin, it causes the transmission gears to turn. They are already turning in the opposite direction from the spin, but the gear ratio makes them turn at a different rate. So running the drive motor in the opposite direction, at a slow enough speed, would correct for that and make the input gear's rotation match the speed at which it passes over the output gear. Thus the output gear would not turn.

[jello07032]

needable

[CHRIS90ANDES]

again - Impressive :)

[CHRIS90ANDES]

impressive

[SwirlRed]

Cool!!!!!

[uirukun]

nice multiplex design! A mechanical multiplexer. That's really cool! :) looks like i can make mux in more ways than just a chip!

[RonLaRocque1]

these are the people who become engineers

[Skilya]

I did stuff like this as a kid and I became an engineer. Then I learned that engineers in the real world just type stuff into spreadsheets all day. It's not so simple.

[jorgmaquoi]

@Skilya dude if u did this as kid ur proberly 20 years old beceause lego doesnt excist over 50 years i think

[Skilya]

...yeah I'm 24. Who said I was 50?

[Skilya]

Also, Lego bricks have existed since the 40s

[powerplantnl]

@RonLaRocque1

They probably are already

[driftking9293]

@RonLaRocque1 i thik these are the people who becomes stp

[barnbarn122]

@RonLaRocque1 its not a 12 output engine!!!

[NoxiousGER]

@RonLaRocque1 most likely theese people are engineers already ;D

[rubikbrewer]

@RonLaRocque1 These are people who were engineers. So many are getting laid off that they now have plenty of free time to build these contraptions. Just another possibility. Always examine all possibilities.

[jhoelzler]

Lego is danish ftw

[gamegod10104]

you should build on to it make it do more

[tucense]

the only thing im wondering about is how the input gear touches all the output gears it has to pass over.. it might make the final design of what you are making act a bit wierd

[cezar17negru]

nice work, cool design

[6527mjap]

I don't get it.

[firecad2006]

some here whats it suppose to do just randomly pick a gear

[drakomytaka599]

It's so yuo can have many 'motors' by using two

[CardSearcher911]

What is the point of this?

[ILoveMixery]

isnt it obvious? u can use one of this instead of 12 single motors. of course it cant do all at once but it is able to move 12 (or more) different poles just with 2 motors. could be done with 1 motor too ;o)

[drcaos]

And well you can get 12 different milkshakes with this...

[produKtNZ]

Tis obvious! I was thinking of a use for it too =)

I would implement this into a light controller and have 12 poles with lights on to rotate, or lights with mirrors and have this wee unit drive them =) that would be awesome, if not a little Rube Goldberg :P

[TheMike894ftw]

Ok?

[legomaplestorynoob]

what does it do???

[lordkesil]

What do you do with a multiplexor?

[SpartanDara117]

i think you use it to make it power more things

[lordkesil]

OK ty for answer

[SpartanDara117]

np my friend

[Kreaki]

Nice Work!! You should make the main motor go round and round.

[MisterFitzGibbon]

Hi nice multiplexor design. I have a couple myself in this video that solve the problem of unwanted spin.

[MADSTORM11]

sweet but wat does it do? ;l;l;l;l

[Dominoe11112]

Well, you can use one motor instead of 12....

[GotScares]

thaTS a good idea 2 motors to create the output of 12. Genious.

[Srlancelot39]

actually it doesnt quite work like that because you cant create energy from nothing. What his creation is doing is transferring energy to different 'ports'.

but i know what you are trying to say. =P

[thecardrawer10]

...

[MiceGoMoo]

What does it do? :P

[RUBIKSMASTERS]

Whats the point

[AISC95]

cool. it can function like you connect 12 motors

[ryconi1]

awesome

[Dominoe11112]

i dont really like the new NXT's. They are too bulkey, the RCX's you can make really compact. Since the motors are a good square size. The NXT's motors are very awkward. I might try to re-create this with RCX... sorry, just thinking XD

[Jv977]

made of lego mindstorm?

[RyuK1202]

well i gess that u know make lego digital designer the mechanical map cause i am interesed in contruc this multiplexor and i dont know how

great job and continue making this king of tool make more easy us life

[corotor12345]

what a useless piece of machinery. and that comes from a gearhead... this is, next to useless

[videofan080]

do servo motors require the intelligentce brick

[Mafcos9000]

its easy to build that

[kiashadowwave]

it would need a clutch to be useful, as the main axle rotates it turns every wheel along the way.

in practice, this would pose a major problem, so it would need to "pop" up and move, then replace itself

[PARWIG410]

could be fixed in software, or with pneumatics.

[Bartiez96]

What is it supposed to do?

[MrBshit225]

It can connect one motor to many different devices,so you can choose from axle 1 to axle 12,in this example (-:

[Squ1bst3r]

be boring. I wasted my time watching this.

[EvilResult]

This is an honest guess, but id say it looks like a cutting head selector and drive unit for a milling machine.

[Mindstormscreator]

no, its just showing that you can use only 2 motors (or one?) to simulate 12 motors for other things

[TheSupremeHaloMaster]

what is it for ?

its a speed up forr a motor or what ?

[PhillX0]

put a gear on the other end 2 at once

[SClondondude]

if u had bigger too smaller gears it could be like a bike shifting gears@!!!

[kevum]

it screwed all of them

[L3G0nerd]

nice clever idea

[DotOverTheA]

Very impressive :) Genius solution 5/5

[mustang500e]

thats pretty cool, just trying to figure out how thats useful. looks familar but im not a big tech guy unless you count cars

[TNSthetormentor]

Its useful when youre trying to make a machine that needs more than 3 motors then you can make this multiplexor

[maloneproduction]

that would be an awsome water gun turret!!!

[SunnyDB1TCH]

it can be an electical powerd water sprinkler

[WeAreTwoDoorsDown]

cool... but can you tell me why?

[GhostXoP]

very very smart

[leg0man1ac]

go to legohacks . blogspot com to see an alternate way of using cheaper motors to do the same way.

[darkeagle009]

if you want you can have a gear in the opsit side so it double the gears ho are moving but i is very very good

[Rendszergazdajelszo]

very good, it can be very useful

[mesart]

very nice. however its not infinitely expandable since the motors have a precision limit of roughly 1 degree. :p

[hydrogenix]

can't you scale it to 0.5? i mean like stepper motors...?

[frostmage6985]

I LOVE this mech, it is ideal for bots that have to perform multiple functions, realy usefull in competitions like First L league

[roflball]

i used you mech in one of my projects... only 1 and for outputs though... one controls the pneumatics the other turns a turret :P