Como eu construí uma esteira de LEGO que se move em TODAS as direções
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Creating a LEGO-compatible brick that doesn't exist
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The Most Complex Automatic Transmission I've Ever Put In A LEGO Car
19:55
Lego Gravity Power : transformer les poids qui tombent en électricité !
34:51
How I built a Mechanical Calculator
16:06
Top 9 des machines à balles les plus satisfaisantes
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The BEST Mechanical Display You've EVER Seen!!!
14:12
Building a REAL pawn that transforms into a queen (automatically)
17:56