Transparent whistle from PET with ball and hole
prusaprinters
<h3>Transparent whistle with ball and hole</h3><p> </p><p>The whistle contains a hole for passing the cord, a groove for attachment in the mouth and is complemented by a ball that causes a change in frequency.</p><p> </p><figure class="image image-style-align-center image_resized" style="width:75%;"><img src="https://media.prusaprinters.org/media/prints/152302/rich_content/e044d7a0-b237-4a7c-855d-4d478199dac6/m1.png#%7B%22uuid%22%3A%2236d13552-9715-46b5-b2b2-a60cb1b21d5c%22%2C%22w%22%3A715%2C%22h%22%3A536%7D"></figure><p>Whistle made of transparent material. We can observe the movement of the ball inside due to the airflow. Classic whistles have a hanging ring, but that can be broken. This whistle has a hole built directly into the body.</p><p> </p><figure class="image image-style-align-center image_resized" style="width:75%;"><img src="https://media.prusaprinters.org/media/prints/152302/rich_content/22155c7c-0489-4cc4-a18d-c5c71c8c94f2/m4.png#%7B%22uuid%22%3A%2215a1fb5c-1a44-4c52-a171-0b959e35029f%22%2C%22w%22%3A600%2C%22h%22%3A450%7D"></figure><p>It would be difficult to make a ball using FMD technology and it would not achieve a smooth surface. A better way is to insert an airsoft ball with a diameter 6 mm during printing.</p><p> </p><figure class="image image-style-align-center image_resized" style="width:75%;"><img src="https://media.prusaprinters.org/media/prints/152302/rich_content/5afcab18-c3eb-4818-b3b1-558a39d31377/m3.png#%7B%22uuid%22%3A%2276c14820-1613-42a8-b986-6c8831b74743%22%2C%22w%22%3A600%2C%22h%22%3A450%7D"></figure><p>Whistle made from transparent material. You can use filament from recycled PET bottles, or recycled PET-G.</p><p> </p><figure class="media"><oembed url="https://youtu.be/sSEhcA9nDGU"></oembed></figure><p>The ball moves due to the rotation of the air from the spray. When blowing through the human lungs, the sound is clearer and louder. Also, the ball moves much faster. Included ball causes a change sound frequency.</p><p> </p>
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