Referee Whistle

by ThreeD-Michael · Gadgets

3.9k Downloads

544 Likes

3.3k Makes

News 2024-02-05:My newest design, a Long Range Dog Whistle at 6200 Hz. Please download here.News 2024-01-21:I designed an Ultrasonic Dog Whistle with a very high pitch of 23 kHz, which you can download here.Description:Let me introduce my newest whistle design, the Optimized Referee Whistle.What makes this whistle outstanding:extremely loud and far-reaching,piercing triple tone,high side walls for perfect finger grip,mouth grip for hands-free whistling,large mounting hole for lanyard cord,almost indestructible,easy to print.How to print:Use a line width of 0.4mm and a layer height of 0.2 mm, 6 bottom and 6 top layers