Making Simple Robots, 2nd Edition

without making the robot tip over. If the holder tips your robot

off-balance, move the servo horn to a better spot. (Another way

to help balance it is to add some weight to the top; see the next

step.)

3. To make the upper half of the robot body:

• Take another cup, container, or other material and create an upper

body and head to go on top of the marker holder. The example

shows a cup that’s been cut shorter

(Figure

G

)

.

• Put the marker back in, tip end down. Protect your work surface

with some paper or cardboard, and remove the cap. (Put it on the

other end of the marker if it fits.)

• Push the marker down until it can draw on the paper