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LEGO Basics Georgia Tech
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Page 1: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

LEGO Basics

Georgia Tech

Page 2: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

1 Stud LENGTH

1.2 [studs]

2 [studs] 8 [studs]

LEGO UNITS!

Page 3: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

3 plates = 1 brick Heigth = 1.2 [studs]

LEGO Heights!

0.4 [studs]

Page 4: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Types of Bricks!

Brick Technic Brick

4 studs and 3 holes

1 [studs] Holes shifted by 1/2 [studs] from top studs!

Page 5: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Alignment of Horizontal/Vertical Holes !

6 bricks = EXACTLY 7 HOLES

Only these holes line UP!

4*1.2 +2*0.6 = 4.8+1.2 = 6 [studs]

6 [studs]

Page 6: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Alignment Patterns !

2 bricks + 2 Plates= EXACTLY 3 HOLES

2 plates

2*0.4 +2*0.6 = 0.8+1.2 = 2 [studs]

2[studs]

Page 7: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Alignment Patterns !

Insert technic pin every 3 holes

Page 8: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Alignment Patterns !

4 bricks + 1 plates = 5 holes

2*1.2 +0.4 2*0.6 = 2.8+1.2 = 4 [studs]

4 [studs]

Page 9: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

LEGO CAD and ONLINE Reference!

•  DEMO LEGO BrickSmith

• Parts: guide.lugnet.com/partsref

Page 10: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

LEGO Technic Angle Connectors !

#1 #2 #3 #4 #5 #6

Page 11: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

LEGO Technic Axle !

(notched) #2

#3

#4

#5

#6

(With STUD)

#8

#10

#12

Number = axle length in lego units

Page 12: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Technic Flexible Axle !

#11

#12

#14

Number = axle length in lego units

#16

#19

Page 13: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Technic Axle Joiners !

Perpendicular

Perpendicular 3L

Perpendicular 3 LONG

Plain Perpendicular Double

Page 14: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Miscellaneous Axle Pieces!

AxLE Towball

Axle Nut

Axle Pin

Connector with axlehole

Connector

Page 15: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

SMALL Technic Bricks!

Technic brick 1x2 with axlehole

Technic Brick 1x1 with hole

Technic brick 1x2 with hole

Technic brick 1x2 with holeS

Page 16: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

MEDIUM Technic Bricks!

Technic brick 1x6 with HOLES

Technic Brick 1x4 with holeS

Technic brick 1x8 with holeS

Technic brick 1x10 with holeS

Page 17: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

LARGE Technic Bricks!

Technic brick 1x16 with holeS

Technic Brick 1x12 with holeS

Technic brick 1x14 with HOLES

Page 18: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

LARGE Technic Bricks!

“A mechanical bushing is a cylindrical lining designed to reduce friction and wear, or constrict and restrain motion of mechanical parts.” (Wikipedia)

Technic bush

Technic bush 1/2 Smooth

Page 19: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

LARGE Technic CAM!

“A cam is a projecting part of a rotating wheel or shaft that strikes a lever at one or more points on its circular path.” (Wikipedia)

http://en.wikipedia.org/wiki/Cam

Technic Cam

Page 20: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Small Technic Gear!

Gear 8 Tooth

Gear 12 Tooth Bevel

Gear 12 Tooth double Bevel

Gear 14 Tooth Bevel

Gear 16 Tooth

Page 21: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Technic Gear!

Gear 16 Tooth with clutch

Gear 24 Tooth

Gear 24 Tooth with clutch

Gear 24 Tooth crown

Page 22: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Technic Gear!

Gear 40 Tooth

Gear rack 1 x 4

Page 23: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Technic THIN Liftarms!

Liftarm 1 x3

Liftarm 1 x4

Liftarm 1 x5

Liftarm 1 x6

Liftarm 1 x7

Page 24: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Technic THICK Liftarms Straight!

liftarm 1 x 3 straight

liftarm 1 x 5 straight

liftarm 1 x 9 straight

liftarm 1 x 15 straight

Page 25: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Technic Liftarm Bent!

liftarm 1 x 7 bent

liftarm 1 x 9 BENT

liftarm 1 x 9 BENT

liftarm 1 x 11.5 Double BENT

Page 26: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Technic Liftarm L shape!

liftarm 2 x 4 l Shape

liftarm 3 x 3 l Shape

liftarm 3 x 5 l shape

Page 27: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Technic pins!

Tecnhic pin

Technic pin 3L Double

Technic pin 1/2

Technic pin 3/4

Technic pin long with friction

Tecnhic pin long with stop bush

Technic pin with friction

Page 28: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Technic pin Joiners!

Tecnhic pin joiner dual perpendicular

Technic pin joiner round

Page 29: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Technic plate!

Technic plate 2 x 4 with holes

Technic plate 2 x 6 with holes

Technic plate 2 x 8 with holes

Page 30: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Technic plate!

Technic plate 2 x 4 with holes

Technic plate 2 x 6 with holes

Technic plate 2 x 8 with holes

Page 31: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Technic miscellaneous!

Technic pulley large

Technic universal joint

Technic universal screw

Page 32: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Slope brick!

Technic Slope brick 18 4 x 2

Slope brick 33 3 x1 inverted

Technic Slope brick 33 3 x 1

Slope brick 33 3 x 2

Slope brick 33 3 x 2 inverted

Page 33: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Slope bricks!

Technic Slope brick 33 3 x 3

Slope brick 45 2x1

Technic Slope brick 33 3 x 4

Slope brick 45 2 x 1 inverted

Slope brick 45 2 x 2

Page 34: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Slope bricks!

Technic Slope brick 45 2 x 2 inverted

Slope brick 45 2 x 4

Technic Slope brick 45 2 x 3

Slope brick 65 2 x 2 x 2

Slope brick 75 2 x 2 x 3

Page 35: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

bricks!

Page 36: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Plates!

Page 37: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Special Gear Arrangements!

Page 38: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Rack and Pinion!

Rotation to linear motion

“A rack and pinion is a pair of gears which convert rotational motion into linear motion. The circular pinion engages teeth on a flat bar - the rack. Rotational motion applied to the pinion will cause the rack to move to the side, up to the limit of its travel.” (Wikipedia)

Page 39: LEGO Basics - Georgia Institute of Technologyhasler.ece.gatech.edu/Courses/ECE1882/LEGOBasics.pdf · Rack and Pinion! Rotation to linear motion “A rack and pinion is a pair of gears

Worm Gear

(under construction)


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