Walk the Line
• Battery Cube
• Motor Cube
• LED Cube
• 4-stud beam
• 16-stud beam (2)
• Wheel (2)
• 3/4 connector
• 8-tooth gear
• 24-tooth gear
• Bushing (2)
This car will leave a trail wherever it goes, so you can retrace its steps by "walking the line"!
1 Gather your Cubes, LEGO®s, and other materials.
2 Stack the Battery Cube on top of the Motor Cube so that the metal posts are touching. Stack the Light Cube on top of the Motor Cube.
3 Place the Cubes on top of two 16-stud bricks at the end of the bricks.
4 Slide the axle through the second-to-last hole of the 16-stud bricks.
5 Attach a bushing to each side of the axle and attach the 8-tooth gear onto the Motor Cube.
6 Attach the 24-tooth gear to the axle so it fits into the 8-tooth gear. Attach a tire to each side of the axle.
7 Attach the markers to the 16-stud bricks so the tips are facing away from the Cubes.
8 Attach the 4-stud brick horizontally into the 16-stud bricks so it lifts up the pens, and turn on the Battery Cube!