remote-controlled LEGO technic vehicles climb vertical wall & steep incline using their parts

custom LEGO Technic vehicles can climb over walls

Youtube channel Brick Technology documents and builds custom remote-controlled LEGO Technic vehicles that can climb vertical walls and steep inclines using their parts. In a video, the maker uses LEGO Technic liftarms, axles, rubber tires, and electric motors to make their custom-built models work. Liftarms and frames create a strong and lightweight base, while the axles and pins keep the parts together and handle stress from movement. Rubber tires help the wheels stick to the wall surface, and rotors give the wheels power. 

The gears inside the custom LEGO Technic vehicles transfer the power from the motor to the wheels, giving them enough turning power to go up the wall or over an incline. The Youtube content creator and maker has to think about the weight of the vehicles, too. The video shows the trial and error, as other models flip or fail to trek the wall and incline because of their equipment and balance. Some builds may include extra LEGO bricks or heavier parts to keep balance, while others have parts that can be taken off or moved to make it easier to rebuild them. In this case, the wheels, motors, or frames can be swapped out to see what works best.

all images courtesy of Brick Technology, via Youtube

Brick model with track wheels and hooks

Each time a design is tested, the Youtube content creator monitors what goes right and what goes wrong, and the video shows this testing in action for the viewers. If a model climbs partway and stops, it means that it is not working, and it’s visible how the creator changes or tweaks the parts, including moving the motor or using different gears in hopes of making the custom LEGO Technic vehicle work the next time. The models use different designs, with some having short wheelbases and others being longer and even featuring rotors.

Tire size and shape change because bigger tires can help with grip, but the winning custom LEGO Technic vehicle that works for now is the one with the track wheels. In the video, this model is able to stick to the wall without slipping, thanks to its hook that it can throw over to the other side of the wall. It slides vertically and sticks to the wall, and to make it to the other side, it leaves another hook on top of the wall before sliding down, successfully climbing the barricade without slipping or falling. The creator writes that none of the custom LEGO Technic vehicles have steering, and so far, only the one with tracks has managed to go over to the other side of the wall.

there’s a model with exposed rotors, but it isn’t able to climb over

the one with an extendable ‘ladder’ fails to cross over, too

this custom LEGO Technic vehicle uses its hook to go over the wall

It slides vertically and sticks to the wall

detailed view of the hook while the model is on top of the wall

project info:

name: Making a Lego Vehicles climb over a Wall

youtube: Brick Technology | @bricktechnologychannel

model: LEGO Technic | @lego

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