About the train whistle
Four pipes of different lengths sound at once to give the classic chord of a steam train whistle. The designer drew it in FreeCAD and released it into the public domain. It's one of the more popular whistles on Printables, with several makes posted.
It's a tall, narrow print (210 mm), so bed adhesion matters. The designer's first one came off halfway through, and they had to clean their PEI sheet with acetone before it would print.
What you'll need
Printed parts
- The whistle (one piece)
Bought parts
- Nothing
Tools
- Nothing
Build overview
Print settings
- Layer height: 0.2 mm
- Infill: 5%
- Time: About 10 hours
- Adhesion: Clean the bed well; it's tall and narrow