Why you Can’t 3D Print Lego (Yet)

Because Lego bricks are made to really tight tolerances – 0.01mm. That fraction of a millimetre is the difference between them falling apart, and being too stiff to snap together at all.

You’re not going to get that accuracy with your 3D printer, so you won’t be able to torrent a working lego set any time soon.

From a reddit discussion

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