Referee whistle / Police whistle

thingiverse

Very loud classic whistle that makes a sound even if you don't blow hard. There are four versions of the whistle with/without the keyring eye and with/without the internal ball for modulating the sound. Per request there is also now a version with a slightly larger ball (8mm). It prints without supports provided that your bridging performance is good. You need to break off the built-in support for the keyring eye and break loose the ball from the cavity wall (use a small screwdriver). Print Settings Printer: Raise3D Rafts: No Supports: No Resolution: 0.1 mm Infill: 100% Notes: Fillamentum ABS Extrafill Traffic Black Extruder temperature 235 °C. Bed temperature 110 °C. 15% fan speed, 100% fan speed during bridging. Extrusion width 0.4 mm. Layer height 0.1 mm, first layer height 0.2 mm. 2 shells. Post-Printing Acetone vapor bath