Page 19 - Yoshihito Isogawa - The LEGO MINDSTORMS EV3 Idea Book_ 181 Simple Machines and Clever Contraptions-No Starch Press (2014)
P. 19

#12




                                                                                      ×2






                                                                                24:36 = 2:3
























         #13




                             12:20:12 = 3:5:3                                                       ×2




                                                                                                        ×3



























         10

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