Скачать или смотреть 3d printed air raid siren

first 3d printed siren Ive made. this unit is about 120db at 10ft and 80db at 100ft so it's actually quite loud for the size of this siren

the original STL file is actually a small print,
all I did was increase the size of the Y, Z and X axis by 172%

the rotor was a 15 hour print and the stator was a 12 hour print

the motor I used is a angle grinder I bought from a hardware store. it spins at 3560 rpm with no load. with a load it's 3500rpm. the frequency this siren makes is 460hz which is the same as the Sentry siren inc 10v siren.

you are free to use the STL file

STL files
https://www.thingiverse.com/thing:342...


STL file credit: Edaan Friedman