Loud Emergency Whistle Keychain

thingiverse

This is a compact yet incredibly loud emergency whistle that can easily be taken on the go, whether clipped to a keyring or stashed in a backpack. Its small back hole makes it simple to attach to a keychain. Printed with precision using PLA and an infill of 40%, this design relies on a raft for added stability and support - specifically, the curved mouthpiece benefits from expertly placed support attached directly to the bed. This ensures that any internal supports are minimized, maximizing the whistle's performance and overall quality.