Mello91

ThreeD-Michael

<figure class="table" style="height: 330.43px; width: 90%"><table class="ck-table-resized" style="background-color: rgb(255, 255, 255); border: 1px solid rgb(230, 77, 77)"><colgroup><col><col></colgroup><tbody><tr><td style="border: 1px solid rgb(230, 77, 77); padding: 0.4em; width: 50%">Please also take a look at my new <a target="_blank" href="https://makerworld.com/en/models/472979" rel="nofollow noopener">Sports Fan Whistle</a> - a full-fledged referee whistle with national colors.<figure class="image"><a href="https://makerworld.com/en/models/472979" target="_blank" rel="nofollow noopener"><img src="https://makerworld.bblmw.com/makerworld/model/DSM00000000121681/design/2024-05-23_c1846612119bb.jpg"></a></figure></td><td style="border: 1px solid rgb(230, 77, 77); padding: 0.4em; width: 50%">I have also developed Ultrasonic dog whistles at even higher frequencies, which you can find <a target="_blank" href="https://makerworld.com/en/@ThreeDMichael/collections/876023" rel="nofollow noopener">here</a>.<figure class="image"><a href="https://makerworld.com/en/@ThreeDMichael/collections/876023" target="_blank" rel="nofollow noopener"><img src="https://makerworld.bblmw.com/makerworld/model/DSM00000000121681/design/2024-03-17_304761230b1e3.png"></a></figure></td></tr></tbody></table></figure>After a lot of fine work and countless test prints, I proudly present the first reliably functioning 3D printable Ultrasonic Whistle. With a powerful blow, it breaks the barrier of 20 kHz that separates ultrasound from “normal” sound.&nbsp;You&#39;ll probably think that this whistle isn&#39;t working - but that&#39;s because humans (especially as they get older) hear higher tones less loudly or not at all - unlike many animals! I therefore recommend a frequency measurement app for testing. I use <a target="_blank" href="https://play.google.com/store/apps/details?id=org.intoorbit.spectrum" rel="nofollow noopener">this android app</a>.&nbsp;WARNING: This whistle is not a toy! It&#39;s very loud which can harm the ears, so please protect your ears and don&#39;t use it near other people or animals!&nbsp;How to print:First of all: this whistle has very small structures inside - corresponding to the short wavelength of ultrasonic sound. For successful printing, your printer should be well calibrated and work precisely. Use a line width of 0.4 mm and a layer height of 0.2 mm, 8 top layers and 8 bottom layers. The whistle requires correct positioning of the Z-seam - it shouldn&#39;t be placed in the narrow air passages inside the whistle.Print slowly to achieve sharp edges!

Ultrasonic Whistle

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nyx_nk

Calibration Cube with MakerWorld Logo for material profiles testing Other materials coming soon

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