Zipline Racers are propeller-powered devices built to explore flight and propulsion using simple, easy-to-find materials. Upon completing the build, you then have hours of fun ahead racing across the zipline and tweaking your design to improve performance.
- Paper clip
- Rubber band
- Hot glue gun
- Scrap paper
- Popsicle sticks
Caution: Do not touch the hot end of the hot glue gun and watch where you place your fingers when applying hot glue to popsicle sticks.
How to Make a Zipline Racer
Step 1: Assemble Racer Frame
Grab a popsicle stick and apply hot glue to one half of one side.
Step 2: Attach the Propeller
Slightly lift the smaller inside part of a paper clip away from the larger outside part to create an “L” shape.
Step 3: Design the Racer’s Sail
Select a piece of paper that is big enough to fit between the two vertical popsicle sticks. This piece of paper will serve as the sail for your racer. Decorate it as you like!
Step 4: Add a Rubber Band
Wrap one end of the rubber band around the metal hook attached to the propeller.
Step 5: Ready to Race!
Your racer should now be ready to race! When you are finished with the above steps, you will need to create momentum for your racer. To do this, spin the propeller to wind the rubber band.
Building a Zipline
Create a zipline using a thin piece of thread, ribbon, or fishing line spread between 2 tall chairs or other raised surfaces. Bring your racer to the zipline. Once there, clip the racer in place using 2 binder clips and GO!