3d Printed Air Raid Siren - Works with drone motors and an ATTINY

thingiverse

Watch the funny (+18) YouTube video: https://youtu.be/XbA_2SBETDA This is a 3d printed Air Raid Siren that uses a couple of drone motors with a 16/19mm mount. The spacer pieces will probably need to be modified to fit your specific drone motors. The spacer piece will need to be about 3/16" shorter than the length of the body of the drone motors. Make sure the rotor spins freely before turning the siren on. Be careful modifying the int = maxspeed if you want to siren to spin faster. The rotor may blow if it goes too fast. Wear safety goggles and possibly a bulletproof vest if you're feeling like 50 Cent. I would also recommend printing the rotor with solid infill. 3D Printed Parts: 10 Hole Stator 10 Vane Rotor 12 Hole Stator 12 Vane Rotor Two Caps Two Base Caps Two Base Clamps (If you want to bolt it down) Core Base Two Core Two Spacers Stand Parts list: Two drone motors with a 16mm by 19mm mount pattern Matching ESC's Matching Battery A DigiSpark Various wires Eight 12-24 x 2 1/2" Combo Round Head Bolts, Nuts and Lock washers Eight 8-32 x 1" Flat head Bolts, Nuts, and Lock washers Ten 8-32 x 3/4" Combo Round Head Bolts, Nuts, and Lock Washers (these could probably be 1/2") This Air Raid Siren was designed in OnShape. The x_t files are Parasolid files that should (I hope), be editable in OnShape. The "Spacer Flat" x_t file can be imported into OnShape and changed. Click the "Create" button, go down to import. Once it's imported you can extrude it to the size you need. It is 0.1" currently. To figure out the how big the spacer piece needs to be, take the length of your drone motors (should be in mm) and subtract 0.0625 inches from the motors. For example, my drone motor bodies were 16.5mm long. So I would need a spacer piece that is 16.5mm - 0.1875in. I will add more info to this shortly. Ask if you have questions! I'd love to help!