Mini air raid siren
thingiverse
Mini single tone air raid siren. Only a standard DC motor and two M3 screws are needed for assembly. The rotor of the siren is connected to the motor shaft (d=3.4mm) by means of a press fit without tools. Watch your fingers. The siren is relatively loud at higher speeds (U: 20V ... 32V). A demonstration video will follow (on 12/14/22).
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