This is a helicopter that rotates when falling towards the earth and consequently falls slower than a stone.

A slingshot is included to bring the device up to altitude.

A rubber band is needed for the Slingshot.

Print Settings:

• Use a modern Slicer with Arachne enabled, or use “detect thin walls”
• Set “Seam Position Random”
• Infill 40%
• Standard 0.4mm Nozzle or 0.5mm Nozzle should work fine