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).
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.
Acetone vapor bath