Page 207 - Yoshihito Isogawa - The LEGO MINDSTORMS EV3 Idea Book_ 181 Simple Machines and Clever Contraptions-No Starch Press (2014)
P. 207

Changing the angle of


                            rotation freely






         #161





                                                                                  ×4           9


                                                ×2                  ×2





                  ×2







                 ×2




                 ×2





               ×2          ×2




                           ×4


             ×2            ×2


             3
                  ×2


               5
                   ×2



         198

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