The file 'Super-mini CARABINER WHISTLE For Your Zipper! Quick Print! 3D Printer Model' is (stl) file type, size is 15.3KB.
A super-mini but surprisingly loud whistle you can put to the zipper of your jacket, a keyring, a backpack...!
Print a few of them and give them to your friends as emergency whistle. :-)
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.
Please find more designs from me at my profile at printables.com:
https://www.printables.com/@prntmkr/models
Do you already know my Mobile Phone CAMPING LIGHT? Check this out:
carabiner_whistle_prntmkr.stl | 76.0KB |