Happy Birthday, LEGO Brick! | Brickset: LEGO set guide and database
File:Lego dimensions.svg - Wikimedia Commons
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BrickGun - Lego® Dimension Guides
BrickGun - Lego® Dimension Guides
What is the interference lock offset of a LEGO stud/hole such that it fits snugly into another piece? (i.e. What are the snap mechanism dimensions?) - Quora
Comparing LEGO® bricks, plates and DUPLO® bricks - Help Topics - Customer Service - LEGO.com GB
Lego 1 - Brick dimensions - YouTube
LEGO Design
2x4 Teal Brick 5006291 | Other | Buy online at the Official LEGO® Shop US
What is the wall thickness of a lego brick? - Bricks
What are the dimensions of a LEGO brick? - Bricks
Lego Challenge #18: Reverse engineering Lego bricks - Tom Alphin