Step Numb. Color Part Description ------------------------------------------------------------------------------- 1 2 Light-Gray 3738.DAT Technic Plate 2 x 8 with Holes 2 4 Light-Gray 3023.DAT Plate 1 x 2 2 4 Light-Gray 32028.DAT Plate 1 x 2 with Door Rail 3 8 Black 3701.DAT Technic Brick 1 x 4 with Holes 4 4 Light-Gray 3023.DAT Plate 1 x 2 4 4 Light-Gray 32028.DAT Plate 1 x 2 with Door Rail 5 4 Light-Gray 3022.DAT Plate 2 x 2 6 2 Light-Gray 71427C01.DAT Electric Technic Mini-Motor 9v 7 2 Black 5306.DAT Electric Brick 2 x 2 x 2/3 with Wire End 7 2 Light-Gray 3738.DAT Technic Plate 2 x 8 with Holes 8 4 Black 3004.DAT Brick 1 x 2 8 2 Black 3023.DAT Plate 1 x 2 8 2 Black 3702.DAT Technic Brick 1 x 8 with Holes 9 2 Black 3738.DAT Technic Plate 2 x 8 with Holes 10 4 Black 3706.DAT Technic Axle 6 11 4 Light-Gray 6538.DAT Technic Axle Joiner 12 2 Light-Gray 3648.DAT Technic Gear 24 Tooth 12 4 Light-Gray 3649.DAT Technic Gear 40 Tooth 13 4 Yellow 3482.DAT Wheel Centre Large 14 4 Black 3634.DAT Tyre 17 x 43 15 4 Light-Gray 4185.DAT Technic Wedge Belt Wheel 16 2 Black 5306.DAT Electric Brick 2 x 2 x 2/3 with Wire End 16 1 Black 884.DAT Electric Mindstorms RCX (Complete Assembly Shortcut) 17 2 Light-Gray 3034.DAT Plate 2 x 8 17 1 Black 3702.DAT Technic Brick 1 x 8 with Holes 18 2 Light-Gray 3749.DAT Technic Axle Pin 18 2 Light-Gray 4459.DAT Technic Pin with Friction 19 4 Light-Gray 32056.DAT Technic Liftarm 3 x 3 L Shape 20 4 Black 3705.DAT Technic Axle 4 20 2 Light-Gray 4265C.DAT Technic Bush 1/2 Smooth 21 4 Black 5306.DAT Electric Brick 2 x 2 x 2/3 with Wire End 21 2 Light-Gray 879.DAT Electric Touch Sensor Brick 3 x 2 (Complete Assembly Shortcut) 22 3 Light-Gray 3666.DAT Plate 1 x 6 22 1 Light-Gray 3702.DAT Technic Brick 1 x 8 with Holes 23 1 Light-Gray 3666.DAT Plate 1 x 6 23 1 Light-Gray 3795.DAT Plate 2 x 6 23 2 Light-Gray 3713.DAT Technic Bush 23 2 Black 32140.DAT Technic Liftarm 2 x 4 L Shape 24 4 Light-Gray 32015.DAT Technic Angle Connector #5 24 2 Black 3705.DAT Technic Axle 4 25 4 Black 3704.DAT Technic Axle 2 25 4 Black 32062.DAT Technic Axle 2 Notched 25 4 Light-Gray 4265C.DAT Technic Bush 1/2 Smooth 26 2 Light-Gray 3749.DAT Technic Axle Pin 26 8 Light-Gray 4265A.DAT Technic Bush 1/2 Type I 26 4 Light-Gray 6632.DAT Technic Liftarm 1 x 3 27 1 Black 3149.DAT Hinge Plate 2 x 5 Base 27 1 Black 314.DAT Hinge Plate 2 x 5 Top 27 2 Light-Gray 4185.DAT Technic Wedge Belt Wheel 27 2 Black 70162.DAT Technic Wedge Belt Wheel Tyre 28 1 Black 5306.DAT Electric Brick 2 x 2 x 2/3 with Wire End 28 1 Blue 2982C01.DAT Electric Light Sensor (Complete Assembly Shortcut)