Constructing and Experimenting with 8 Dynamic Lego Bridge Designs
2023/11/29

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This article discusses the construction and testing of eight Lego movable bridges. The main idea of the article is to showcase the creativity and engineering skills required to build these bridges using Lego bricks.

The first bridge mentioned in the article is a simple drawbridge model. The builder demonstrates how the bridge can be raised and lowered using a winch mechanism. The article highlights the use of Technic Lego parts to achieve the desired functionality.

The second bridge discussed is a bascule bridge, which operates on a counterweight system. The builder demonstrates how the bridge can be raised by pulling a string attached to the counterweight, causing the bridge to tilt and allow boat traffic to pass underneath.

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This bridge also showcases the use of Technic gears and levers to create the engineering mechanism.

Moving on, the article presents a vertical lift bridge, which operates by raising a center span vertically using gears and pulleys. The builder demonstrates the smooth movement of the bridge as it is raised and lowered, controlled by a handle connected to the gear system.

The fourth bridge discussed is a swing bridge, which operates by rotating a central section to allow boats to pass through. The builder showcases the use of gears and axles to achieve the swinging motion, along with a crank mechanism to operate it.

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The fifth bridge presented is a rolling bascule bridge, which combines the functionality of a bascule bridge and a drawbridge. The builder demonstrates how the bridge can be both lifted and tilted using a combination of Technic gears and levers. This bridge highlights the complexity of combining different engineering principles in one Lego model.

Moving forward, the article introduces a retractable bridge model. This bridge features a retractable center span that can be extended or contracted using a gear and pulley system. The builder showcases the smooth movement of the bridge as it expands and contracts.

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The seventh bridge discussed is a double leaf bascule bridge, which features two separate sections that raise and lower on either side of a central point. This bridge demonstrates the use of synchronized gear mechanisms to ensure both sides move simultaneously.

Lastly, the article presents a vertical split bridge, which consists of two separate halves that can be raised independently. The builder showcases the independent movement of the halves using a gear system and small motors.

In conclusion, this article explores the construction and testing of eight Lego movable bridges. The models showcased demonstrate the creativity and engineering skills required to build functional bridges using Lego bricks. Each bridge utilizes different mechanisms, such as winches, gears, and pulleys, to achieve their desired functionality. These models serve as a testament to the endless possibilities of building with Lego and encourage creativity and problem-solving skills in construction projects.

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