High-Precision LEGO Engineering

Lego Bricks

For an old-school toy, the manufacturing process of LEGO bricks is extremely sophisticated. To achieve the correct fit between the studs and the holes of two bricks – so that they can be clicked together and pulled apart with just the right amount of effort – a maximum tolerance of 0.001 mm is allowed during production. Even with this high standard to reach, only 0.0018% of all bricks are defective. And the few that are defective, of course, are recycled back into ones that aren’t.

LEGO photograph by fdecomite

Dan Zambonini

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Dan Zambonini is a co-founder at Eighty-Five Technologies Inc. Their most recent project is Docoh - SEC EDGAR Filings Search. He wrote A Practical Guide to Web App Success, the leading web application book. You can usually find him twittering on about something on Twitter at @zambonini.