V29

cults3d

Update By popular demand, I've added a de-badged version of the V29, labeled V29D in the thing files section. Originally, I put the version number on the whistle to keep track of my progress as I developed them. As I refined the design over 29 iterations, it became an integral part of the whistle's story for me. A few people requested a badge-free version, and Fusion 360 recently posted a video showcasing their use of Meshmixer to remove the lettering from the V29. Their creative approach inspired me to trust your feedback. Below is their video: The MakeItLoud V29 got its name due to being the 29th design iteration for this challenge. It's an original survival whistle that combines ruggedness, ease of use, and a great design with exceptional loudness. The goal was to create a whistle that can get your attention in any condition. To test its ruggedness, I repeatedly spiked it into the pavement, ran it over with my car twice, and left it submerged in water for two hours. Despite these extreme tests, it still whistles flawlessly. The design aims to look as clean and simple as possible while maintaining a whistle-like appearance. It also features raised lips and grips on both sides, allowing you to hold it securely even when blowing hard with thick gloves or cold hands. A hole in the back enables attachment to a key ring, lanyard, zipper, or keychain. Another priority was making the design printable in one piece with no supports or rafting required. I wanted users to be able to print this before heading out on a hike or similar activity without any assembly, cleanup, or fuss. The whistle produces two distinct tones simultaneously through separate chambers on either side. These tones alternate between amplifying and canceling each other out, creating the shrill sound of a pea whistle that grabs attention more effectively than a single tone whistle. Unlike a pea whistle, however, it won't jam if blown too hard or freeze up in cold weather. Using my decibel meter, I measured its volume at 118.7db. The harder you blow into it, the louder it becomes, so users with stronger lung capacities may reach even higher levels. Be cautious, as it can hurt your ears slightly at that level. I began designing and printing prototypes from day one of this challenge, knowing little about how whistles work. Through extensive research, testing, and trial-and-error iterations, I produced a whistle that meets all my goals. For optimal results, blow into the whistle as hard as possible in a single burst! The international distress signal with a whistle is three long blasts. I hope you print this for yourself and enjoy it!