Steam Train Whistle (Lego Compatible)

thingiverse

**Update 2023-03-17:** I've designed lower and higher pitched variants of this whistle. You'll find this additional variants [here](https://www.printables.com/model/425055-steam-train-whistle-lego-compatible). **Summary:** This Lego compatible steam train whistle has only 2 tubes. However, the choosen geometry generates suitable overtones that ensure the realistic sound. The whistle can be blown softly or loudly. **How to print:** Print with 0.4 mm line width and 0.2 mm layer height, 7 top and 7 bottom layers. And don't print too fast, a whistle needs sharp edges! The whistle requires correct positioning of the Z-seam - it shouldn't be placed in the narrow air passages inside the whistle. The Z-seam should be positioned as shown in the image above (the white dots represent the Z-seam). Use the “Z Seam Alignment: User specified” option in Cura or the "Seam Painting" option in PrusaSlicer to achieve this. **Please also check out my growing [Whistle Collection](https://www.thingiverse.com/threed-michael/collections/37167385/things).**