How precise are modern LEGO manufacturing molds required to be?
Chapter 1

From wooden ducks to plastic bricks

Chapter 2

The secret science of clutch power

Chapter 3

The system of play and the minifigure

Chapter 4

The global community of builders

YOUR GOAL

Master of The story of LEGO bricks

Ch 2 · The secret science of clutch power
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lego Precision down to the micrometer

Jul 26

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lego LEGO Clutch Power

Ten-micron fit, that classic click, never gonna slip!

Jul 26

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lego The magic of ABS plastic

Jul 26

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Precision down to the micrometer

lego LEGO molds operate with extreme precision to prevent loose or stuck bricks.

Jul 26

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The magic of ABS plastic

lego Switching to high-grade plastic in 1963 gave the bricks their legendary durability.

Jul 26

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How Bricks Click
BETA

lego Snap the studs and tubes together to learn how clutch power makes LEGO bricks click.

Jul 26

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Fun Fact

Indestructible LEGO bricks: A single standard LEGO brick can withstand about 950 pounds of pressure before cracking, making them incredibly tough.

Jul 26

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Glossary
clutch power (noun)
The frictional force that holds interlocking components together while allowing them to be separated. Godtfred Kirk Christiansen patented the internal tube design in 1958 to give LEGO bricks their clutch power.

Jul 26

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Gossip

What is your biggest LEGO pet peeve?

Jul 26

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Quiz

Why can a LEGO brick manufactured in 1965 still fit perfectly with a LEGO brick manufactured today?

Jul 26

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lego The genius of the modern patent

Jul 26

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Quiz

Which durable plastic material has LEGO used to manufacture its standard bricks since 1963?

Jul 26

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lego The quest for sustainable materials

Jul 26

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Quiz

By what year does the LEGO Group aim to make all of its packaging and core products from sustainable materials?

Jul 26

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Quiz

What is the primary purpose of the small holes found in the heads of some LEGO minifigures?

Jul 26

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Quiz

What sustainable raw material did LEGO use in 2018 to make its first plant-based plastic elements?

Jul 26

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Quiz

Approximately how many manufactured LEGO bricks out of every million fail to meet quality standards?

Jul 26

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Quiz

How precise are modern LEGO manufacturing molds required to be?

Jul 26

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Quiz

What design feature was patented in 1958 to give LEGO bricks their famous "clutch power"?

Jul 26