The Lego Mindstroms

Reciprocating mechanisms

#63

×2
×3 ×2
5 ×2

7

42

#64 35 ×2
#65
×2

×2

×2 5 ×2

×2

43

#66

×4
×2

7

#67

5 ×4
×3 ×2

44

#68

×2 ×4
×2
3
6
×2 ×2

45

#69

35

×2
×2

×2 ×2

#70

×2 ×2 5

×2

46

#71

7

×2 ×2 ×2 ×2

×2
×2

×14
×4

47

Cam mechanisms

#72

×2

5

48

#73

×2
×2

#74 3
7
×2
×2
×2

49

#75

×2

3

×2
×2
×2

50

#76 ×2 ×2 ×3 ×2

×2

3

×2
×2
×6
×2

51

Intermittent motion

#77

×2

5

×2

×2
×2

52

#78

×2

×2

7 ×2
×2
×2
×8

53

#79

×2
5 ×2

54

#80 ×2 ×2 ×2

×3
×2
×2
×2

55

Transmitting rotation
with rubber bands

#81

≈1:3.6

56

#82

1:1

×2

#83

×2

57

#84

3
5

×2

#85 ×2 ×2 ×2 ×4 ×3

5
58

#86

×2 ×2 ×6 ×4
×2

3

×2

5

59

Transmitting rotation
with caterpillar treads

#87

×2
×2

×2 5
×2
×2

×4
×2

60

#88

×2

×3 ×2
×3
3

×2
×4 ×6

61

Transmitting rotation
over a long distance

#89

×2 3

×4 ×4 ×2
×2
62

#90

×2 ×2 ×4

3 7 ×2
×2

#91

×4 ×2 ×2
×2 ×2
3

×4

63

Off-center axes of rotation

#92

64

#93

×2
×3

65

#94

3

×2 5
×2
×2 ×2

66

#95 3 ×2 ×3 ×3
×5 ×2
×2 ×2 ×2
5

×2 ×2

67

Changeover mechanisms
using rotational direction

#96

6 7 ×3
×2 ×2
3

×3

68

69

#97 ×2

36 ×2
×2 ×2 ×2
×2 ×2

70

#98 ×2 ×2 ×2 ×2
×2 ×2
×2

5

×2
×2

×2
×2
×4
×3

71

#99

×2 ×2 ×2
×4

9 ×4 ×4
5

×2 ×2 ×14 ×2 ×2

×2

×2
×2

72

73

Universal joints

#100

×2 ×2
×2 ×4
×2
3

5

×2

6

×2

74

#101

×2 ×4
×6
×2
×6 ×2
×2
3

×2

5

×5
×2

75

PART 2

76

Vehicles

78 90 100
82 94 104

77

Driving wheels with a motor

#102

9

×2
×2 ×2

78

#103 ×2 ×4

×2 5 ×2

6

×2

Gear ratio 12:36 = 1:3

12:20 = 3:5 4:4 = 1:1

79

#104

9

×2
×2
×2
×2
×3

80

#105 3 9
6
×2
×2 ×8 ×2 ×2
×3 ×2

1:24

81

Driving wheels with
two motors

#106

×2

5 ×2 ×2
×2 ×4 ×4
×2

82

#107

×2
×2

×2
×2

12:20 = 3:5

×2

×2 ×2 ×2
×2
3 5
×4
×3 ×2

×2 ×6

83

#108 ×4
×10
×2
×2 ×4
×2
×2

×2
×4

×2

×4

×2

3

×2

7

×2

×2

84

4:4 = 1:1

85

#109 ×4
×4
×2 ×10

×4 ×2

×4

×2 ×2

×2 ×2

×4
×2

6

×2

3

×2

86

12:20 = 3:5

87

#110 ×4

×2
×2 ×2

×2 ×2

×2 ×2

6

×4

×2
×8

×6
×2
×4

88

20:36 = 5:9

89

Caster wheels ×2

#111

×3

90

#112 ×2

×2

91