Steam Train Whistle - Remix

thingiverse

I redesigned the classic steam train whistle in Fusion360 as a fun parametric challenge. I turned the holes around to make it easier for kids to blow into, and also reduced the mouthpiece size to suit their needs. The revamped design eliminates the holes at the bottom that some users had previously complained about. The entire tube is now 1mm thick all the way around. I've included two STL files: one at normal size, and a smaller version with a cute steam train sound effect, which I dubbed "Baby Steam Whistle". To print this design, use a layer height of 0.2mm, a nozzle diameter of 0.4mm, and three perimeter shells. A 15% infill should be sufficient for most printers, and support or brim settings are not necessary.