This video demonstrates fundamental mechanical engineering principles through Lego creations, showing how different mechanisms like pendulum systems for balance, conveyor belts for material transport, and automated brush systems for cleaning work together to solve practical problems. The experiments illustrate that successful mechanical design requires understanding component interactions, testing under realistic conditions, and iteratively improving designs to achieve desired functionality.
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GIANT Automatic LEGO Truck Harvests Everything! | Lego Funny ExperimentAdded:
Have a nice day. [laughter] This garden is full of grass.
It's time to trim the garden.
This is a mess.
I have to build the lawn mower now.
>> How to build the lawn mower. Step one, build the mower blades.
Add the gears.
Add the sweeper.
Add the gears.
Step [music] two. Build the body.
Add the wheels.
Add the battery box.
Connect mower blades to the body.
Testing [screaming] low reach sweeping. It's ready to go. Let's get started.
Cutting the grass now.
Wow. [screaming] Great job.
What happened?
>> Come on. Come on.
It's out of control. [screaming] >> Oh my god, the grass grew so fast.
I can fix [music] this right away.
[laughter] It's time for my little sheep all put together.
>> Time to mow the lawn. [laughter] >> Another way to build lawn mower. Step one, build the cutting deck.
Step two, [music] build the body.
[music] Step three, connect cutting deck to the body. testing.
>> Wow.
>> Wow. [screaming] I need to take the shrimp to that [music] sushi restaurant.
This rocky terrain is too rough.
>> Shrimp.
>> LET'S GO. [screaming] >> [screaming] >> I NEED A STURDIER CAR.
>> Option one, pendulum mechanism car.
Build the car chassis, [music] the engines, the battery box.
Now add the wheels.
Build the pendulum [music] mechanism.
Lego chain.
Connect [music] two parts.
Lego chain link. The car uses a chain mechanism for movement. The pendulum mechanism will keep the water tray balanced during movement. Our car is ready.
Wow.
>> Now, let's set up these three acupressure mats. This rough surface will challenge the car's balance. The car will start here and finish here.
Pendulum mechanism car is ready. The initial amount of water is 200 ml. Let's see how much water it carries to the finish line.
It moves across the carpet quite well, but the water still slushes around a lot.
Pendulum mechanism car has carried the water past the obstacle.
Number two, stabilization mechanism [music] car.
Build the stabilization mechanism. This dual [music] frame structure will automatically adjust the balance for the tray.
Place the tray inside. The tray stays steady even though the frame tilts.
Build the car chassis.
the motor, the wheel, Lego curved gear rack. I'll use these curved gear racks to make four legs for the car to walk on.
Connect to the battery box.
Connect two parts.
Stabilization mechanism. Car is done.
>> Stabilization mechanism. Car is ready.
Awesome.
The car walks on the massage mat super smoothly.
Stabilization mechanism car has reached the finish line.
So, the green water level is higher than the yellow one. The winner is stabilization [music] mechanism car.
>> This time I'll definitely deliver this shrimp to the sushi restaurant.
W Yeah. Mission complete. [laughter] >> At this intersection, it's been pouring rain since last night till this morning.
It's really lucky. I got away in time.
>> The tunnel is flooded. Should I go down there?
>> Oh no, my car is sinking.
Someone help me.
>> The rescue team is here.
>> [screaming] >> Thanks for saving me.
>> Everyone, please stop your vehicles.
>> What happened?
>> This is a mess.
>> I need to drain this tunnel quickly.
A lot of water is getting sucked into the truck.
How to build the water suction truck.
Step one, build the truck body. First, I'm going to build the rear chassis, the motor, the wheel.
Now, I'll build the front chassis.
Connect the two chassis. These front wheels can help the truck steer left and right. connect to the battery box.
Next, I'll build the cabin.
Step two, build the water suction tank, plastic water bottle, plastic tube.
Testing, bowl of water. Let's see [music] how it sucks up water.
>> [groaning] >> Just a little water left in the tunnel.
I need to go down.
After multiple rounds of suction, the water in the tunnel has gone down a lot.
>> Let's keep sucking up water.
Before.
After.
>> The tunnel has been drained completely.
[laughter] Wow.
>> Everyone can pass through it now.
Fishing port.
>> It's time for fishing, bro.
>> Yes, sir.
>> Our boat is full [music] of fish. We need to go to the fish drop off. Please wait. The bridge will open right now.
How to build fishing ship?
>> I brought the parts to assemble the ship.
>> Okay, let's get started. Step one, built the loading conveyor belt. This loading conveyor is used to pull fish up from the sea.
the support frame, Lego tread links, the gearbox, the motor connect to the battery box.
I'll build another one to bring the fish into the ship. Step two, build the unloading conveyor belt.
Lego tread links.
Add the motor.
Now, let's connect the two conveyors together.
I want to test if this conveyor can transport fish up.
>> Lego fish and crab.
Now, let's attach the [music] conveyors to the ship and add the wheelhouse.
Let's move this fish to the gathering place. Everybody, we're done. LET'S GO HOME.
OH NO, WHAT HAPPENED? This boat is too big. Oh no, the boat is about to Someone help.
[screaming] >> You will need a better fishing boat.
>> I'll reuse this collecting boat from my previous episode to fish.
>> Wow. [screaming] >> This boat might boost our productivity time. It works so well.
We caught more fish than the old boat.
All the fish have been unloaded on shore.
Let's move everyone. We'll go to the next fishing port.
Awesome. The boat has successfully turned around.
Yeah, this car is ready to hit the road again.
Oh no, the car is dirty.
>> Cut it out. Stop crying. I need the car clean immediately. [groaning] >> I can't. Mr. Hand, I need your help.
Don't worry. Let's [music] build automatic car wash right now.
Build the water spray system.
Step one, build the frame.
Step two, build the main engine.
Step three, build the car spinner.
Install the water tank. Entrance exit.
I'll test [music] how the spinner works.
Oh no.
I need to stabilize the car. Check it again.
Testing again. Perfect. The car is all set.
>> Build the brush system. Step one, build the movement system.
I need to secure them together.
Install the conveyor belt.
The movement system is done.
>> [music] >> Step two, build the wash brush. I installed the rotating brush. It does not use a motor.
I'll build the automatic brush area.
The two vertical brushes are now installed.
Install the battery box. Smooth operation. They'll remove dirt on both sides of the car. Finally, I'll install the horizontal brush.
This brush adjusts up and down based on the vehicle's height.
I have completed the automatic car wash for you, Alex.
Here's the newest automatic car wash.
Let's run it right now.
>> [cheering] >> Are you kidding me?
>> Sorry, I forgot to [music] add the soap.
Car wash detergent.
>> I'll clean this car right now.
>> I'm in a hurry. Wash the car quickly.
[screaming and groaning] Oh, [screaming] >> my car is ruined. I want a refund for the damage.
>> I'm so sorry.
No.
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