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