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Eu construí uma bicicleta com engrenagens impressas em 3D (ela realmente funciona!)
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18:37
You Thought Doping Was Bad? Wait Until You Hear About Electromagnetic Bikes
23:37
I 3D Printed a $6,499 Bike with Zero Experience
18:11
You NEED to 3D Print These for November 2025
33:58
1930s Gearbox Bicycle - Restoration
33:08
100% Blown Wing Powered Airplane