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How Lego Bricks are Made
Enter a caption (optional)In this age of planned obsolescence, it is pretty cool that you can take a new Lego brick and it still attaches to one made over fifty years ago. Obviously their production line has been upgraded over the decades, and if you've ever wondered what the process looks like, here's a little behind-the-scenes.
We've used our industrial expertise to caption some of the images, just so you laypeople can understand what you're seeing:
Technicians who attempt to eat the plastic paste are fired, under a stringent "three strikes" system 
"If Hans would wash his greasy hands before using the touchscreen, I wouldn't have to wear this stupid glove" 
"These all look plenty sharp. It would be a pity if a parent stepped on one, but ultimately their fault for being barefoot" 
"My Dad says someday these will be autonomous and that the drivers will be out of work" 
"What the eff, THERE'S ONLY EIGHT STUDS ON THIS BRICK! …Oh wait a sec, no, there's nine. I miscounted" 
Prototypes for the Marie Antoinette/Louis XVI action set 
"When my supervisor is at lunch, I get this bad boy up to 40, 50 kilometers per hour" 
"Yes, Peter, all trucks will be autonomous and the drivers will all be fired. That includes your friend Tommy's father" -
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Comments
It's surprising how sarcastic the Lego marketing folks are in their photo captions. ;-)
Perhaps Rain is a Lego employee...
I never was able to figure out if there was any draft on the outside of the brick, including the pegs. Apparently, they're pretty secretive about how the mold is designed exactly. Does anyone have any more info on this?
From what I remember of childhood there was no draft, i.e. if you built a wall it felt smooth all the way down. But they still have to get it off of the tool (as we see in the video); do you reckon they've somehow designed some springiness/tension into it, so that it ejects with draft, then cools and shrinks to square?
I found this article that explains everything! shortsleeveandtieclub.com/breaking-down-the-design-lego-perfecting-the-plastic-brick/
The draft is in the inside, none on the out side of the bricks.