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

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

Description

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.

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