The LEGO MINDSTORMS EV3 Idea Book: 181 Simple Machines and Clever Contraptions

The LEGO MINDSTORMS EV3 Idea Book: 181 Simple Machines and Clever Contraptions
Yoshihito Isogawa (Author)
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The LEGO Technic Idea Book: Simple Machines

The LEGO Technic Idea Book: Simple Machines
Yoshihito Isogawa (Author)
(66)

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