A sliding whistle is a musical instrument that changes pitch by sliding a piston in and out.
Orient all components on the print bed as shown in the picture.
For the flute, ensure good bed adhesion. If needed, you can add support, though it’s not required. A raft might be helpful for better adhesion, depending on your printer setup. I printed the flute directly on my BambooLab without support. Use 15% infill or higher for the flute. All other components do not require support.
The piston head is connected to the stick with a short piece of 1.75mm filament.