Siro Drone Siren (Fully Functional)

This is a Siro drone siren. It is fully functional and requires a DC 130 3V motor to operate. This siren is not particularly large, but that does not mean it is quiet. Unfortunately, the Hula Hor siren was taken out of service in 2023. But that doesn't mean you can't have your own siren! So when you print this model, you can admire the rotating Siro drone in your own home. Oh sorry, I didn't have enough red filament to print the sirens in red XD If you want to see the rotations: Show the second picture in the photos! I hope it works for you haha If the hat doesn't rotate immediately, give it a little push so it can rotate better, and make sure it really has full power, because wind is also needed for operation! The shredder must therefore rotate correctly. If it doesn't work, you can contact me and I will adjust the model or give you precise instructions.

Parts you need

• DC 130 3V Motor
• Cable
• Superglue

How to build

Read through it first before assembling it! First glue the motor to the stator and then the shredder to the motor shaft. Now attach the front roof to the underside of the stator. Once the glue has hardened, you can attach the cables to the motor and glue the base in place. But first pull the cables through the hole! Now you can take the bracket and glue it to the stator. Make sure that the bracket does not touch the shredder, otherwise you will hear it during operation. Now comes the hat.

Handle the bracket with care, as it is not particularly thick and can break easily. I therefore recommend printing the bracket with 100% infill, but this is not absolutely necessary, although it does help with stability. If you only want a siren, apply a little glue to the top of the bracket and then place the hat over it so that the top of the hat sticks to the surface of the bracket. However, if you want a spinning hat, simply place the hat on the mount. I can't guarantee anything, though, as the hat might get stuck, so to make sure it spins, check that you are following all the steps correctly and that there is no excess glue on the hat. Now it should work, and you might even have a spinning hat! You probably won't need them, but if the siren spins too fast, I recommend attaching some weights to the feet so it doesn't tip over.

Controlling and operation

I couldn't find a control element, so it's probably not possible to replicate a specific control element from H.O.R. It's best to operate the siren with a 9V or 4.5B battery. Maybe also with 12V, but only at your own risk! I recommend not overloading such a motor, otherwise it will break, and believe me, I speak from experience. Removing a broken motor from a small glued-together motor is really annoying and takes a long time!

I hope this model works for you! If you notice any errors, please report them immediately so that I can correct them right away. The model should actually run flawlessly, as I test all my siren models before publishing them.

Warning! This siren can be very loud. Do not place your ears too close to the stator during operation! Protect your ears, because the more power you give the motor, the louder this siren will be. Do not overload the motor!

I hope you like the model, and if you can think of another model, write it directly in the comments and I'll make it! :)