The ol' Two-Finger Whistle (whistle like your cool uncle!) 

This is a 3D printable whistle that mimics the classic two-finger loud whistle that is often performed by skilled individuals, your dad or your cool uncle. 

 

This is a quick print. Roughly 19 minutes with non-adaptive layers for a rough look and 27 mins with adaptive layer height. 

 

Uses less than 8g filament with:

0.2mm layer height

2 walls

15%

0.4mm nozzle

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The ol' Two-Finger Whistle (whistle like your cool uncle!)