The third and final book of the LEGO Master Builder Academy Invention Designer (20215) is Kit 12 – Inventor’s Lab. This book focuses on different inventions and mechanisms inspired by Leonardo da Vinci from LEGO Designer Steen Sig Andersen. Like the first two books, there are instructions for a main model and three springboard models. In addition, you can access seven more springboard models on the LEGO Master Builder Academy website.
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