Measure and draw a rectangle on some cardboard sized 1 cm x 8 cm. Draw a line at every 2 cm point along the rectangle.
Measure and draw a circle with a 4 cm diameter using the same string and thumb tack technique from earlier.
Cut out the parts.
On the rectangular piece, score along 2 cm lines.
Bend and fold into square and glue onto one circle piece.
Glue the other circle on top.
Cut a string roughly 45 cm long and glue one end to spool.
Wrap the string around the spool.
Glue servo wing on the side of the spool making sure the spool is oriented such that the string is coming up and out to the right.
Draw perpendicular lines through each side of the 8 cm circle.
Attach servo onto wing and spool.
Orient the spool and servo contraption on the 8 cm circle base such that the spool is centered. Double check that the string is facing towards the circle base top where it will be pulled through shortly.
Glue down spool and servo contraption on circle base.
On the front of the circle base, use a hobby knife to cut a hole in the top center.
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