Walk the Line

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Materials

•  Battery Cube
•  Motor Cube
•  LED Cube
•  4-stud beam
•  16-stud beam (2)
•  Wheel (2)
•  Axle
•  3/4 connector
•  8-tooth gear
•  24-tooth gear
•  Bushing (2)
•  Markers
•  Rubberband


Builder

Sadie


Overview

This car will leave a trail wherever it goes, so you can retrace its steps by "walking the line"! 


Steps

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!