Super-mini whistle! Only 5min print time! (MK4)

A super-mini but surprisingly loud whistle for your keyring!

Print a few of them and give them to your friends as emergency whistle. ❤

Only 5min print time with Prusa MK4 Input Shaper (other printers maybe take longer time)

This is also a perfect test-print for calibration of your printer.

Make sure you set the correct perimeter speed (=25 - see below) otherwise the whistle may not work correctly.

Recommended print settings

• Nozzle: 0.4
• Layers: 0.2
• Infill: 100%
• Perimeter speed: 25 (important!)
• Thick bridges

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Check out my other designs too!

Have you seen these designs? Hope you like them too… ❤