Emergency Whistle fully printable without support. The whistle is capable of producing an audible output of up to 128dB. I independently confirmed this using a sound level meter. The V2 design is slightly different in shape compared to V1. It is a little bit smaller and has a different lanyard hole. But has the same loudness according to designer notes.
Download Size 1.7 MB
Printed and tested by 3Dcrowd.
Short and long bursts whilst recording db on iPhone XS using DecibelX app.
Part printed quite easily and performance was more than adequate.
No stringing detected on tested settings. According to designer notes, if you have stringing problems, this whistle will not work because there are a lot of retractions. Check your slicer settings. Maybe lower the print speed and/or the temperature if this happens. Increasing the retraction distance could be a good idea too. No problem during test.
What files or other parts do I need to print this?
No assembly required