GENIUS LEGO Gadgets YOU can Build Yourself!

I’m a lego inventor and today i’m going  to design and test six lego gadgets to see   which ones are actually useful and which ones  aren’t even worth making this may be a bad idea   all right so the first idea i have is a lego wrist  mounted shooter and it’ll also have a built-in  

Laser should be pretty easy to make we’re just  going to need a strap and then a little piece on   top for the laser we’re just going to use this  generic cat laser guys make sure not to shine  

This in your eyes it could cause permanent damage  danger take all the pieces apart i’m going to clip   the two connectors so now we have a positive and  a negative so then we’re gonna take the batteries  

Out of this and tape them together so that we  don’t need this whole assembly they all stay   together like that and then we can take this put  the red on the positive side and the blue on that  

Side push the button so now we got the laser now  we gotta pick a shooting piece that actually fires this honestly the best choice here is this thing  that’s modified okay so now we got our laser look  

At this this is all that’s going on top of this  we need to build a lego strap that’ll go around   our hand so that we can actually mount something  to the top of it bend we have two rows of these  

We should be able to make a good wrist thing  perfect and then if we just grab some tiles look at that now we have a you know watch   guys i just want you to know that this will  help you survive if you ever find like a  

Spider on the wall use the laser to aim and  then shoot the missile you can save your life   probably come to think of it i could just use one  of these bracelets lego actually makes because   it’s comfortable and wow that would have been  a lot better you’re welcome to use one of these  

Too same concept we’re gonna leave these two studs  open and then we just put a plate on top we want   to have this installed in here and the laser right  here and then we can put the batteries right there

Here’s what we got we got our little missile  right here a little missile all you have to do   is push down the laser by just doing that it’s  looking super cool so far let’s see we can do

Gotta aim a little to the left hey let’s  go this thing is actually super cool the   fact that it has a laser sight you can just  aim it at what you actually want to shoot   this thing’s awesome guys i’d say this is an  accurate tool and it’s really fun don’t shoot  

It at your eyes definitely don’t shoot the laser  at your eyes let’s move on to the next thing stop   right there because this video is sponsored by  keeps keeps is a subscription service that offers   doctor recommended clinically proven treatments to  help combat the symptoms of hair loss and help men  

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This video now let’s hurry up and finish the  build i mean let’s hurry up and finish the build   all right the next thing we’re gonna build is a  lego pen with three different pens on it that’ll  

Rotate as you draw so what we’re gonna do is we’re  gonna take these three things put them like this   in a circle and then we’re going to invent  something that essentially just spins them   around while you draw we use this  motor and battery box to control it  

You should be able to put those uh yes  check this out guys we put this here   and then it always spins no matter what direction  start the motor no matter what direction you’re   drawing it will alway whoa whoa whoa okay  that particularly it might be a bad idea

Wow that is just horrible you  don’t forget about the bendy thing   hey that’s kind of cool just have  to get all of them to work okay i   think they need to be closer together  guys do that those are a lot closer now we’re getting there we’re going to put in more  

Now we have six check this out we grab our  wheel we gotta do is tighten here we go that is awesome it’s like a ton of tiny  circles and look you can even do it at an  

Angle a bit that’s sick yo and then if you want  to make it tighter you just simply push down   and then you have tighter look at that  you got six pens in one lego master pen   i’d say this one is useful because you can  actually do some pretty cool designs with  

It and it was really simple you just  put like six pens in it this is cool   all right next we’re going to build a lego trip  wire alarm we’re going to use a mindstorms ev3 and  

A button sensor and that’s we’re going to put this  on one end and attach a pin to a string right here   the string will be attached somewhere on the  other end and when someone trips the string this  

Thing will be released and it will go now we can  program this using our ipad it’s going to be super   simple literally we’re just going to do it when  program starts forever block right here wait until  

Released and then we’re going to add a sound block  now while we’re waiting this is going to be stress   we’re programming on the computer same thing  we have here a lego string which is really   simple it’s just a little winch we need  to attach a pin of some sort to this side  

Boom now we have that tied on here like that  so when this is yanked or tripped it will go   with that sound effect  specifically attach this to this nice if we have this on one side of the door  we have this over here and someone walks by

That’ll totally work guys there’s no doubt  there’s a little bit down okay guys check this out   put this here set it up like that okay here we go do you like my arm i was like what was  that hey it actually worked thank you  

It does work so i’d say that’s definitely  worth making let’s go build the next one   you know what i bet you guys have a  problem when you listen to earbuds   they sound so great you take them off and you  put them in your pocket and you’re like oh it’s  

All tangled i have an idea for a lego gadget  that will actually keep this rolled up and   you can unroll it and then you can twist it  to roll it back up a lot of people have done  

This this isn’t an original idea but it’s easy  to do in lego probably we need a special piece   that’s about this big with a hole this is a cool  piece let’s see what we want to happen is that  

One end turns and the other end turns two now  twist it and it works probably like that so now now obviously it doesn’t do anything what we’re gonna get this okay we are  just throw those there that’s the   one guys i can feel it just grab earbuds like that

Put it in your pocket it’s pretty bulky  and there you go you can listen to earbuds yeah this one’s trash don’t do  this one this was a bad idea for   for a gadget maybe you guys can  design a better one than i could

All right so my idea for the next contraption  is to use this lens which is like a   super good magnifying lens and these  glasses right here and build something   on the side that will kind of flip in like  this so you can see stuff really close up  

And look pretty cool so that’s the next idea  so first we need to figure out where this goes   probably honestly about there now we need  to build a cool case for this so it looks   better than this that actually looks super cool  perfect look at that that is awesome actually

Pretty much just like that and then there  we go looks a lot better from the front now   now you need to come up with something  that will hold these glasses really tight   so use this lego rubber piece like this we should  be able to come up with some sort of a mount

Sits on there like that and  then this thing go like this   here this can now attach to this and rest  on there like that it’s not far enough over   we can do this look we’re just gonna add a few  more pieces hey look at that guys dang do i look  

Good or what this actually works really good  dang this is so sick see the microscopic stuff   look at that you can totally see the details  of everything super super well that’s the table   there’s the lego brick these glasses are literally  so cool i’d say that’s definitely useful and it  

Doesn’t look too stupid either this one you pop  it up and it’s not that bad you just pop it out   of sight i’d say this is definitely super sick  all right so the next gadget idea i have is a  

Automatic phone swiper so if you’re on like  social media or whatever you’re on instagram   you want to get through all those stories you  just press it and it goes and it just swipes i   think it’d be pretty useful unless it’s not so  here’s how we’re going to do it we’re going to  

Need a bit of aluminum foil and a wire like this  we’re going to tape this to the foil tape that to   the arm let’s build up a super quick mechanism  that will essentially just make this motion   like that put it on that side  put it on there put that on there  

Now what we got that’s almost it yes that could  work guys we have to hold it at this angle   specifically let’s mount this at the angle that  it was working replace this up here with a motor   beautiful that is going to swipe through  so many instagram stories you’re going to  

Be like i thought you cared about me nah just  kidding oh it doesn’t have it doesn’t have any   electricity on it okay so that’s where the foil  comes in we’re going to wrap this around this tape  

This to it and then hold the other end and then  it’ll pretty much think that this is our finger okay here we go this is it oh no i clicked an ad yeah i think this  actually works check it out guys i am  

Scrolling through so many stories i’m blurring  this out just for people’s privacy by the way it’s actually working really really well  except sometimes it scrolls backwards   i wonder if you can like scroll down it’s  literally scrolling through the entire instagram  

Oh it’s reached the bottom oh nope it’s going  still guys i’d say this is definitely worth it if   you’re super lame and just don’t like looking at  what your friends post it’s probably a practical   use but just like care about people gosh  guys comment down below which one of these  

Lego gadgets was your favorite huge thanks  to keeps for sponsoring this video check   out their link down the description check  out this video if you want to see when i   built the world’s strongest lego l motor  now what am i going to do with all these