Reflect on Prototype:

Strengths:

• Simple, sturdy
• Resembles design well

Refinements:

• Need slingshot stabilization (Slingshot doesn’t function well, bends when pulled)
• Functions too quickly, does not show energy conversions clearly
• Lacks focus
• Masking tape rips off part of the cardboard skin, may need to change the material (Bad aesthetics)

Outline Feedback:

Feedback received:

Anonymous Peer 1: 

• Aesthetics need improvement
• The size of the prototype does not fit the axels
• Should change material, cardboard bends too easily, and slingshot doesn’t work properly
• Paper airplanes were fun tho 🙂

Anonymous Peer 2:

• I like that you used masking tape for the prototype to not waste hot glue
• Color the car body pls. Cardboard looks very scuffed.
• I think the ramp doesn’t do much

Anonymous Peer 3:

•  What energy conversion is this
• The gong sometimes not work

Changes made:

• Removed gong and ramp
• Changed cardboard to colored foam boards (Yellow)
• Adjusted 3D Print model for slingshot (Reduced height, so it’s easier to stabilize)
• Made more paper airplane variations

Photos:

My prototype

Readied launcher (Couldn’t upload video)

Launched Paper Airplane

Final Product