2. BUILD THE LAUNCH PAD
The launch pad can also hold the rocket during construction.
2a. Stack the 2 pinewood boards and clamp them securely, or
nail them together temporarily with 2 nails in opposite corners.
2b. Draw a circle whose diameter is ½" larger than the diameter
of the plastic bottle, centered on the top board.
2c. Drill six 2" holes evenly spaced ( 60˚ apart) on the circle.
2d. Unclamp or remove nails, and shove the 2" dowels through
the holes, flush to the bottom of the bottom board. Slide the top
board 6" above the bottom board.
2e. Glue the dowels into the holes with silicone sealer.
3. BUILD THE ROCKET
3a. Cut 6 fins from the corrugated plastic using the razor blade
and metal ruler.
3b. Mark 6 evenly spaced lines ( 60° apart) on the side of each
3c. Glue 3 fins evenly spaced ( 120° apart) on the bottom of each
bottle (the end with the nozzle) with the 4" side vertically against