Building & Testing a Mini Lego Brushed Motor

Рет қаралды 189,473

24 күн бұрын

Patreon: www.patreon.com/user?u=122597865
See my latest experiments and behind-the-scenes footage!
Can we use some simple wire, magnets, and Lego to make our own brushed motor? In this video, we’ll attempt to build a brushed motor with a simple commutator that will time the rotations. And we’ll explore its performance by testing it at different voltages and current, as well as seeing what Lego contraptions we can power with it. Finally, we'll hook it up to a power supply to push it to its max!

Пікірлер: 260

@JTCF 23 күн бұрын

You're not getting even close to 2 amps in there, let alone 10. As the other comment already said, the amps on your power supply are just a limit. The current passing through a wire is voltage divided by resistance of the conductor, and that resistance is static, but you turn the voltage higher, which does result in higher current, but it is quite low. Higher resistance - less current, Higher voltage - more current.

@carpdog42 23 күн бұрын

I am glad to see someone else caught this. Saw a similar issue with video where someone was testing fuses, he actually bought load resistors so he could test them "at the correct voltage" without realizing that there is no difference to the fuse, amperage is amperage, it doesn't really care how much voltage the rest of the circuit is dropping.

@malanikuiper414 23 күн бұрын

Am I the only one who has no idea what they are talking about?😂

@carpdog42 23 күн бұрын

@@malanikuiper414 The simplest explanation is to look at OHMs law; if you put a voltage across a resistance, current flows according to the ratio between them. In order to change the current you must change the voltage. So in order to limit current, you limit voltage. So a power supply will attempt to provide its Max voltage up to its Max current, if the load would draw more than Max current, then voltage is reduced until the draw is max current. If the max current is greater than the load, then it raises to max voltage, but can go no higher. Think of it like a hose, you can bend it to reduce the flow, but once its full open, its full open and you can't open it any more to get more flow.

@malanikuiper414 23 күн бұрын

@@carpdog42thx for explaining

@jameshogge 23 күн бұрын

Right on the money. Although it's also worth saying the power supply is reporting the *average* current. I'm sure there's a fairly large spike when the brushes first make contact and connect the circuit. You've got to take inductance into account so it won't just be V = IR at that point. Really you need an oscilloscope.

@Trex0Pol 23 күн бұрын

7:12 The two amps are only the limit. The actual current draw is around 110 milliamps. So even if you set it to 5 amps, it would be the exact same result. It's only the voltage that makes it go faster :)

@kepler_45 23 күн бұрын

It hurts soo much to see hin raise the amperage like it was voltage

@FamTech. 23 күн бұрын

@@kepler_45yes

@user-nm3mw4mw1c 23 күн бұрын

Would it be able to power its self and have some to spare?

@Trex0Pol 23 күн бұрын

@@user-nm3mw4mw1c I'm not sure if I understand the question correctly, but if you mean would it be able to power the motor and and something else? Yes, it totally would. In fact, it would be able to power around 90 of these motors.

@JTCF 23 күн бұрын

@@bami2 They meant that he adjusted the max current (power supply limit) but thought it was adjusting the current itself, making 2 amps pass through the thing...

@HBSpartanIV 18 күн бұрын

nail clippers are the best tool to cut small wires 👌 Finally I know I'm not alone

@JamiesBrickJams 17 күн бұрын

Haha dead on 👊

@GnarpyGaming-shimmyYa 8 күн бұрын

Truee!

@gsestream 23 күн бұрын

you can do brushless dc motor, no commutators, no pulsing, just dc wire running over radially in circle over a ring magnet. high current thick wire replaces many loops of small current wire. yep car battery sized heavy duty current wire. wire? make it a beam, or thick metal rod. flexible metal strip running on a split current rod works as a commutator too. the strip friction makes contact with the spinner. thats wire edm cutter in action. lol. also friction will melt the wire.

@JamiesBrickJams 23 күн бұрын

Good suggestion, cheers! I've made a few brushless motors before, and that's one of my next projects 😉 I really love some of the low power motors that can run for ages, so currently playing with that. Though I am using a reed switch as a timer to keep the design simple

@Thelift2013 11 күн бұрын

the perfect video to make kids understand how motors work. they never get the complicated metal pieces in normal motors. lego is perfect for this

@user-tl1qs2bo3l 23 күн бұрын

Great to see that you are expanding an making motors now!

@JamiesBrickJams 23 күн бұрын

Thanks 😁 And more to come!

@funnybones46 22 күн бұрын

@@JamiesBrickJamsyour could make the first Lego working plane ✈️

@mrprongles9510 14 күн бұрын

This on top of a lego train would look amazing I think!

@JamiesBrickJams 13 күн бұрын

Hey that's a great idea!

@kenangrover402 23 күн бұрын

Your rotor with 3 coils is good. When you wrap the coils, use a little super glue to secure them in place. Also...MORE magnets! :)

@JamiesBrickJams 23 күн бұрын

I was debating glue, but couldn't bring myself to wreck my Lego 😅 You're right though, this definitely needs an improved design so we can really chuck some real power through it 💪

@asteroidrules 16 күн бұрын

@@JamiesBrickJamsCould use the holes on the coil holding bars to attach another piece, maybe something wider so the wires stay in place.

@UnknownGamer40464 16 күн бұрын

@@JamiesBrickJamsmaybe zipties through the middle holes?

@rohanatorgaming0903 18 күн бұрын

now make brushless

@user-nv4jh9ey8i 11 күн бұрын

You had to get the first laugh when is in the Lego figure jump from the voltage😂😂😂

@samuelhulme8347 18 күн бұрын

I think you may be able to generate power with that motor, just turn the shaft and the magnet will induce a current in the wires.

@bananaswingingbeard 23 күн бұрын

Oh we just studied this type of motors in physics! Nice coïncidence, its interesting seeing what it looks like in real!

@JamiesBrickJams 23 күн бұрын

That's awesome! I wish I had studied this - probably would have helped with a better design 😅 Enjoy physics!

@peter360adventures9 22 күн бұрын

Awesome build.

@DataDownLynk 10 күн бұрын

Seeing the tank makes me think of just how well a lego tank would work if it had two to four of those motors working together to spin the tracks, great vid!

@SmartLego-it1wj 17 күн бұрын

Wow, this is such an amazing build! I'm so impressed with your creativity and skill. Thank you for sharing your work with us!

@JamiesBrickJams 17 күн бұрын

Aw thanks a lot for your kind words, appreciate it 🙏😄

@777demolition 11 күн бұрын

This is awesome! Nice work!

@Algorythmischbleiben 13 күн бұрын

Great work! inspiring projects

@JamiesBrickJams 13 күн бұрын

Thanks so much!

@Zigonce 14 күн бұрын

You know, could've made the commutator with some thicker wires. You're not burning out the motor, you're snapping the very weak contacts due to abrasion. And raising the current limit on your power supply does not change the amount the motor draws. Also, why aren't you using another magnet? The coil that goes to the top doesn't do anything in your design. Could've made only one brush on the one side for higher efficiency, the other is just wasting power

@Boardgamer81 23 күн бұрын

YES NEW VIDEO this one was earlier than the last one but still best lego builder ever

@JamiesBrickJams 23 күн бұрын

Aw thanks a lot, appreciate it 😁🙏

@Kaminari_Kitsunokami 14 күн бұрын

Is bro just made diy power functions 😂 This is going to create an entire new field of lego creations And that is awesome

@JamiesBrickJams 14 күн бұрын

The new line of electrical components: Barely-Works Functions (TM)

@furrymessiah 13 күн бұрын

I'm gonna take a drink every time Jamie says motor.

@JamiesBrickJams 13 күн бұрын

I've had a few folks mention that - I didn't even notice 😅

@kanrapeechuamark 23 күн бұрын

You need use electrical steel plates as a stator to increase torque and reduce heat. Also you might add 3 more coils and 4 magnets

@kanrapeechuamark 23 күн бұрын

Coils will be the multiple of 3 and magnets multiple of 2

@JamiesBrickJams 23 күн бұрын

I have less experience with motors, but this 3:2 sounds just like the standard generator setup. Good points, and thanks! I'd love to make an overpowered motor with a more solid commutator and see if we can make Lego tear itself apart 😁

@thebloxxer22 22 күн бұрын

Note: The gauge of the wire has a current rating associated with it. The max current a 22AWG wire can handle is slightly less than 1A.

@bitonic589 15 күн бұрын

You sure? My 24AWG wires can handle 2A

@mohamedmedhat5102 23 күн бұрын

always making useful lego machines

@JamiesBrickJams 23 күн бұрын

Haha thanks, that's usually my goal - it's gotta at least do something!

@Trey.27. 11 күн бұрын

New sub I love your creativity

@rpccmd 23 күн бұрын

I Love your content to my heart !! Thank you

@mandyay7765 23 күн бұрын

Wow great job 👏:)

@JamiesBrickJams 23 күн бұрын

Aw well appreciate it 😁

@brickdreams1 13 күн бұрын

You do it very carefully and patiently

@JamiesBrickJams 13 күн бұрын

Thanks 😁

@justinpatterson5291 21 күн бұрын

Chuck some cap ends or a rubber band around your wire loops to keep them in place a little better.

@JamiesBrickJams 21 күн бұрын

Woah. I was brainstorming some non-permanent ways of better securing those wire loops.. but didn't think of rubber bands. Great suggestion, thanks 🙏

@agepbiz 22 күн бұрын

I love this!

@JamiesBrickJams 22 күн бұрын

Aw thanks a lot 😄

@Mariano.Bernacki 23 күн бұрын

Would be interesting to compare the efficiency of levers, gears, chains, belts, and a generator/motor set to transmit power over long distances.

@JamiesBrickJams 23 күн бұрын

Ooh that does sound like a fun idea

@Legotyres 22 күн бұрын

Really cool

@JamiesBrickJams 22 күн бұрын

Cheers!

@bratuni_minecraft 23 күн бұрын

I love you're vids make more like this pls

@JamiesBrickJams 23 күн бұрын

Sure will 😉 And thanks!

@RandoniumTJ 23 күн бұрын

Use moderately thin wires but thicker commutators... You can actually draw the 10 amps to its reasonable potential and also gain some structural integrity...

@SNIXC 14 күн бұрын

It ain’t even getting 2 amos lol

@RandoniumTJ 14 күн бұрын

@@SNIXC true

@ottobass9193 18 күн бұрын

"2 amps" "10 amps" Funny because you never even pass 1 amps 😂

@mandyay7765 23 күн бұрын

Wow great job 👏:)

@JamiesBrickJams 23 күн бұрын

Thanks a lot 🙏😁

@trevorhaddox6884 23 күн бұрын

When it releases it would be cool to turn the new radio set into a real transistor radio (not just a speaker inside, make the dial actually tune an analog radio inside). You can get modern transistor radio kits online (something actually old school, not just a single IC on a board).

@exterminater267 12 күн бұрын

You should've made a guard on the rotors to keep the wire from flying off.

@joriotje2522 14 күн бұрын

Dang I wish I could build cool stuff with Lego. If only I’d have Lego to start with.

@JTCF 23 күн бұрын

Would be cool to see the three armature rotor with coils that are properly fixed. You used pieces with smooth surfaces and no lip on the outside at all, the wires just slipped away.

@JamiesBrickJams 23 күн бұрын

You're totally right, these were some pretty bad designs. I really want to make a bigger version now with strong armatures that hold the wires properly!

@user-xn4tv1oq7k 23 күн бұрын

wow cool motor

@JamiesBrickJams 23 күн бұрын

Ha cheers 😀

@crimstrix 14 күн бұрын

There is no way you didn't realize how many words rhyme with motor in this video.

@E-dart 12 күн бұрын

Rotor, stator, the other thing

@suezq74 23 күн бұрын

Nice one!

@JamiesBrickJams 23 күн бұрын

Thanks! 🙏

@suezq74 13 күн бұрын

@@JamiesBrickJams You know that your brushed motor is just like other brushed motors and it won’t last long like brushed motors. Try and make a brushless!

@michaburas1294 16 күн бұрын

you should get the Nobel Prize

@NIGHTMERUL 9 күн бұрын

You should use metal lego pieces so the cooper wire magnetic field is echanced

@rioforce 8 күн бұрын

That stops being lego and just becomes… a car

@mathiaschaves7604 22 күн бұрын

hum... so that's a "brush". I aways wandered what was the part that was "missing" in a brushless motor. Cool!

@DigitalDr1ft05 11 күн бұрын

Its can be cool for a lego electrical clocks

@ivannorassat4397 23 күн бұрын

Cool vid btw

@JamiesBrickJams 23 күн бұрын

Cheers 😁

@Dipplers 23 күн бұрын

You said you were going to make a motor and you did. Nice

@JamiesBrickJams 23 күн бұрын

Cheers 😁

@operaatio5117 21 күн бұрын

I would have made the axles mounted on wheel hubs. Is stronger that way.

@nuclearboom2467 22 күн бұрын

make the sides of what your making your coils on flared so your coils dont keep flying off

@user-nm3mw4mw1c 23 күн бұрын

the links for the fan at the 3:49 point of the video look to be reinforced with some light weight parts so hey maybe that's a cheap fan you could use for summer.

@amirrtvukoo 22 күн бұрын

perfect

@JamiesBrickJams 22 күн бұрын

Aw cheers 😄🙏

@Mulakulu 23 күн бұрын

After watching this, I realized a much more efficient and powerful design would use a little bit of logic, with a single SR latch. Instead of running the entire power through that tiny brush, use a voltage level signal with a series resistor to turn on and off an SR latch with an H bridge powering the motor. This will also prevent the motor from needing a kick-start. No more sparks, constant power, and avoids the unnecessary friction from large brushes

@Mulakulu 23 күн бұрын

On second thought, this would require contacts with brushes to supply the voltage. At least we remove the sparks and increase the longevity

@JamiesBrickJams 23 күн бұрын

I do like the idea of an H-bridge! I was wrecking my head trying to figure out how that mitigates the sparks from driving a large amount of external power 😅 But I get where you were thinking - thanks for the recommendation!

@Mulakulu 23 күн бұрын

@@JamiesBrickJams On a normal brushed DC motor, the sparks occur because as the brush begins to touch the next pad, the motor draws an incredible amount of current through a very tiny contact area. With the brushes constantly in full contact and having it controlled electrically rather than physically, there would still be high currents when switching, but it's at least already making full contact and not vaporizing the brush due to the large surface area. Btw, I'm thinking of a high power DC motor here with maybe copper tape as a pad and carbon or brass brushes. Brass might be best for this use case

@JamiesBrickJams 23 күн бұрын

Ah yes, certainly much larger pads would be needed for the contacts! I've been brainstorming materials to use that would be easy to integrate with Lego. Aluminium foil was one idea, but I'm sure that'd get worn down real quick. Might have to see if some copper pipe cuttings can be fitted to Lego. Thanks for your suggestions here though, this is helpful 👌

@Pipe242 22 күн бұрын

Hooks that thing up to the absolute most power you can give it

@JamiesBrickJams 22 күн бұрын

I want to do that on my next one 😉

@user-pj4ow1gc7n 3 күн бұрын

Make an air-raid siren build of lego

@marianbuduroi6463 23 күн бұрын

Make a 3D printer out of Lego 😀

@josefskowronek2600 16 күн бұрын

I'd like to See a 3d printer too

@Eluderatnight 16 күн бұрын

Then 3dp not legos.

@eminstinct4114 16 күн бұрын

@@Eluderatnight nah you dont even get the difference of what there asking and what you think there asking

@Shadowex. 15 күн бұрын

Then print lego

@povelitel_shavermy 12 күн бұрын

@@Shadowex.The cycle continues...

@mishkamcivor409 23 күн бұрын

Electromagnets for the stators would be cool

@JamiesBrickJams 23 күн бұрын

That'll certainly be how my next brushless motor works 😉

@Cool_boy9876 23 күн бұрын

I love your videos but can you upload more Love you videos❤❤

@JamiesBrickJams 23 күн бұрын

Cheers 😁 Wish I could upload more, but building, experimenting, and video production takes a long time, and I have a full time job

@EnvAdam 23 күн бұрын

I wonder if a Joule theif circuit would be handy here.

@JamiesBrickJams 23 күн бұрын

Aw I love joule thieves! That's an interesting idea, I've no idea how a joule thief would perform with a motor. Guess we gotta try that 😉

@brickleyyard4966 13 күн бұрын

What if u divided each windings of a 100 lopes in the 5 lops of 20 so that you still have 100 lopes per each side but twist the 5 wires to make a thicker armature wire

@kiriolvishnergo6140 22 күн бұрын

I don't know why, but it seems like wery steampunk looking thing, while it's fully electric, it is an interesting effect of copper wire

@Atlessa 13 күн бұрын

Seems to me like you're just building a homemade motor, and the fact you're using Lego for the mechanical parts doesn't really much affect it's properties except for that plastic on plastic has relatively high friction compared to some of the other options out there. That said, good first concept. I'd suggest having more than just one string of wire where the brushes touch (loop it back and forth a dozen or so times?) since that seems to be a weakpoint, also might look into redesigning your "brushes" as well. As in... use more wires. Like in an actual brush. And then the next step would be completely redesigning that part of the assembly so you can put a little more constant force on the brushes, make the contact area bigger by using aluminium foil attached to a 'barrel'... those sorts of things. Looking forward to what you do next.

@JamiesBrickJams 13 күн бұрын

Yeah it's pretty much just what you said - a pretty messy and somewhat pointless first attempt at a pretty basic concept that others have done before. But with Lego. I figure a motor made of Lego will interface with Lego easily, making it fun to power other Lego contraptions. Though Lego already makes motors, so I'd like to make another motor but much more powerful. At least then it'd have a benefit over existing Lego motors. Cheers for the tips - I definitely want to make a better set of brushes. I thought of aluminium foil but suspect it'd wear down pretty quick. I've got some copper pipe I can cut to size which I have a bit more faith in, but will just have to see how it turns out. There's definitely a lot more to improve

@Atlessa 12 күн бұрын

@@JamiesBrickJams Ohhhh, copper pipe is a FANTASTIC idea! Saw off a small section (I'd say 1cm is probably enough) and then saw it in half lenghtwise with the thickest sawblade you can find (to create a gap between the poles) I'm sure you can see where to go from there. :D As for the brushes; definitely bend them a bit so the 'pointy' end of the wire points outward a bit, to make sure they definitely touch with a 'soft' curve - to minimize friction and therefore wear.

@thespaceman4576 12 күн бұрын

0:05 This copper wire... To hold... ME?

@caposey 19 күн бұрын

3:50 *_break_* "wobble wobble"

@JamiesBrickJams 19 күн бұрын

😂

@After_Tech_Industries 22 күн бұрын

What if you tied the windings to the rotor to keep them from falling off?

@JamiesBrickJams 22 күн бұрын

Yeah ideally that's how it would work - I did a bad job on these windings. Gonna try an improved version with windings that can't slip off

@DomyTheMad420 23 күн бұрын

i must still be half asleep because it took me till halfway through the video to realize "wait this means i never needed lego/knex branded engines? i could have just MADE THEM?!" before i remember my electric & tech classes and how i already knew all of this and "WHY DIDN"T I DO THIS?!"

@JamiesBrickJams 23 күн бұрын

Haha you're probably better off buying them! But a fun project nonetheless

@SeriousApache 21 күн бұрын

Maybe add some steel core in rotor?

@JamiesBrickJams 21 күн бұрын

Not a bad idea for a V2!

@oPlazmaMC 23 күн бұрын

Now time to actually make these things operational for over 2 minutes

@lukasmacovsky4088 21 күн бұрын

yo ushould try to make a pump powered generator using gear ratios and compresed air!!!!

@manu68563 23 күн бұрын

awesome

@JamiesBrickJams 23 күн бұрын

Cheers 😁

@Indestinate 13 күн бұрын

could use a ball bearing to get rid off the brushes

@hillo3339 23 күн бұрын

hey, where did you get that copper wire, im looking for something like that?

@JamiesBrickJams 23 күн бұрын

This stuff I just got from Amazon - they have loads of magnet wire

@DarmiGames 23 күн бұрын

8:10 this sounds like my 1.9tdi car😂

@JamiesBrickJams 23 күн бұрын

Haha 😂

@TheFactGuy88 22 күн бұрын

Hey, just wandering what magnet did you use here and where could I could get one like it?

@JamiesBrickJams 22 күн бұрын

It's a large neodymium magnet I got from Amazon. Almost any magnet will work though!

@TheFactGuy88 22 күн бұрын

Thanks :) ,Amazon seems like the place to go

@Koda_36 20 күн бұрын

Where did you get the copper wires? Please give links

@JamiesBrickJams 20 күн бұрын

I get all my wire from Amazon, and use many different gauges, but this stuff works well for this kind of thing: BNTECHGO 24 AWG Magnet Wire - amzn.eu/d/gaNBcAA

@the3dpenguy613 14 күн бұрын

7:12 it was only pulling 110 milliamps?

@andyjung1949 15 күн бұрын

Did u use a nail clipper to cut that wire

@JamiesBrickJams 15 күн бұрын

Sure did

@ps2killer1 9 күн бұрын

Add more magnets!!!!

@bobthebuilder6504 22 күн бұрын

5:00 look at the stop watch

@glowytheglowbug 23 күн бұрын

cute! brushless time

@JamiesBrickJams 23 күн бұрын

Deffo, I've made quite a few brushless motors, and one of the next videos will be for a low power long-running brushless motor 😉

@glowytheglowbug 22 күн бұрын

@@JamiesBrickJams awesome, ive never been motivated enough to wind coils for hours XD

@FilipTurek-di9bw 22 күн бұрын

I have tried this myself, well the coil is generating some magnetic field, but it dont work for me. And i think it would run, but i dont know what i did wrong.

@JamiesBrickJams 22 күн бұрын

If there's some push or pull, it's probably just a timing issue, so moving the brushes around a little should work. Or the coils were not in the same direction - if both sides are repelling when you turn the rotor in both directions, one of the coils is the wrong orientation.

@kajin807 23 күн бұрын

How do you increase the torque of the motor?

@JamiesBrickJams 23 күн бұрын

Mostly by increasing input voltage or by gearing it down. This particular design could certainly benefit from more magnets and coils though as there are large dead gaps

@David-ty6my 14 күн бұрын

We got electric lego Tank before GTA VI

@JamiesBrickJams 14 күн бұрын

😂

@ethanpschwartz 22 күн бұрын

I'm starting to resent all my Lego being sold in a garage sale.

@cornalrob 9 күн бұрын

make a brushless one

@JamiesBrickJams 9 күн бұрын

Underway 😉

@mackagg4582 16 күн бұрын

Now try to do comutator from a aluminum tape and see how much more efficient it is.

@JamiesBrickJams 16 күн бұрын

I was actually wondering about that myself! I need to find some suitable materials for a larger commutator. My suspicion as that aluminium foil will get obliterated by large currents, but it's still worth a try. My current plan is to cut some copper pipe to size and try that if aluminium foil fails. Good suggestion!

@RobinHabets 16 күн бұрын

@@JamiesBrickJamscould you also make a launching system with hydraulics?

@KneppaH 23 күн бұрын

The power supply has the possibility to give it 10 amps, but the motor only use a fraction of it. It never got past 1A, only the last moment before failing 1,24A.

@JamiesBrickJams 23 күн бұрын

Yup, I suspect those contacts are touching so quickly that the power supply is attempting to provide an indicator of averaged draw over a period of time

@bean2594 14 күн бұрын

Not sure what a 3 pole rotor could do with just DC. Your poles would just be North, South, then North again. You need an even number of poles.

@JamiesBrickJams 14 күн бұрын

You're totally right, with this setup, the 3 armature rotors don't add anything - they're actually less efficient. But I made them to work with some other experiments I'm working on 😉

@CharredSG 20 күн бұрын

Bro said motor 69,420 times

@JaysonB21 16 күн бұрын

No then he would say 128 times per second

@Wy_WyTheWizard 15 күн бұрын

unfunny

@goodtimeswithcoops 11 күн бұрын

The amps does nothing if the voltage is low or the cables are small

@aleksandertymkiewicz9030 23 күн бұрын

what thickness of the copper wire you use? oh and I love your comment❤❤❤

@JamiesBrickJams 23 күн бұрын

Thanks, appreciate it 😁 For the coils, I used 30 gauge wire, and then the brushes were 24 gauge wire. Best of luck for your own build if you're gonna try one yourself!

@aleksandertymkiewicz9030 22 күн бұрын

Thx

@truck-140-hp-engine. 23 күн бұрын

3 plane to auto start to 1.5v power and 3v power supply and start better circuit 🙂🙂🙂

@Eluderatnight 16 күн бұрын

Add more permanent magnets, arms, and phases.

@lipelego22 15 күн бұрын

PUT ANOTHER MAGNET ON TOP OR BUILD A 120° SPACED MAGNET STATOR WITH 3 COIL ROTOR TO MAXIMIZE EFFICIENCY!!! CMON I WANT A LEGO TANK POWERED BY A HOMEMADE ELETRIC MOTOR

@JamiesBrickJams 15 күн бұрын

Haha yeah this tank needed a bit more juice