3D printing record: the longest model train

The article on the record our friend @DoubleL is finally online! Discover the background of this incredible 3D printing project established by the @DoubleL association, North Maker! 

Congratulations again to @DoubleL for this great record! :)

DISCOVER THE ARTICLE 

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A big congratulations  to @DoubleL  and his partner! The idea of 3D printing the rails as well was well thought out and quite a challenge!

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