Chapter 1
Clutch power and friction
Chapter 2
The magic of ABS plastic
Chapter 3
Extreme precision engineering
Chapter 4
Structural limits and giant builds
YOUR GOAL
Master of The physics of Lego bricks
Ch 3 · Extreme precision engineering

BETA
lego Adjust microscopic brick measurements to discover why they click together and never wear out.
Fun Fact
Perfect bricks: Out of every one million Lego bricks manufactured, only about 18 fail to meet the company's strict quality standards.
Glossary
tolerance (noun)
An allowable amount of variation of a specified quantity, especially in the dimensions of a machine or part. Lego maintains a microscopic manufacturing tolerance of 0.002 millimeters to ensure its blocks always interlock perfectly.
An allowable amount of variation of a specified quantity, especially in the dimensions of a machine or part. Lego maintains a microscopic manufacturing tolerance of 0.002 millimeters to ensure its blocks always interlock perfectly.
Quiz
What is used to color the raw plastic granules before they are molded into Lego bricks?
Quiz
Approximately how many manufactured Lego bricks out of every million fail quality tests?

