Build Your Own LEGO Beam Launcher With Vertical Motors

If you're a LEGO enthusiast looking to combine creativity and engineering, building a beam launcher is a fantastic project! In this Instructable, I'll show you how to create a powerful LEGO beam launcher using two vertically placed motors. Let’s dive into the mechanics behind how these motors grip and launch the beam at high speed.

LEGO Elements: Various beams, connectors, and a stable base

Motors: Two LEGO Power Functions motors (or similar)

Wheels: Small rubber or LEGO wheels for grip

Controller: A compatible device to control the motors (like a LEGO remote)

Power Supply: Battery pack for the motors

Sketch Your Design: Plan where the motors will be placed and how the beam will fit between them. Make sure to focus on stability!

Construct a Sturdy Base: Use LEGO bricks to build a base that supports the motors and prevents movement during operation. Ensure it’s wide enough for stability.

Mount the Motors: Position the two motors vertically on the base. Align them so that the wheels can effectively grip the beam.

Attach the Wheels: Connect the wheels to each motor. Choose wheels that provide enough grip without being too aggressive, which could damage the beam.

Connect to the Controller: Wire the motors to your controller. This allows you to control the direction and speed of each motor independently.

Place a Beam Between the Motors: Power on the motors and adjust the speeds to find the optimal setting for launching the beam.

Vertical Motor Setup: The two motors spin in opposite directions at high speeds. This opposing motion is key to the launcher’s functionality.

Grip Mechanism: The wheels contact the beam as the motors turn, creating enough friction to grip the beam firmly.

Launching Action: The motors pull the beam inward briefly before pushing it outward, launching it away at high speed.

Opposing Motion: The opposite rotation creates a gripping effect, allowing the beam to be held securely before launch.

Friction: The wheels generate enough friction to hold the beam in place during the launch, ensuring it flies straight and far.

Building a LEGO beam launcher with vertical motors is an exciting project that teaches you about mechanics and physics. By understanding how the motors work together, you can innovate and experiment with your designs for even greater launching power. Have fun, and happy building!

4o mini