Key Chain Whistle for Emergency, Super Loud and High Pitch

Key Chain Whistle for Emergency, Super Loud and High Pitch

prusaprinters

<p>This is a remix from <a href="https://www.thingiverse.com/thing:4714641">https://www.thingiverse.com/thing:4714641</a></p> <p>Improvement:<br/> I add a "tail" end to let the air flow confined, so you do not have to blow as hard.<br/> Indeed it is loud with high pitch.</p> <p>Print this with no support, upside down where the blowing piece facing down.</p> Category: Other

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