1/2 Scale ACA Screamer S1 (REMASTERED!)
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ACA Hurricane MKII, but naturally aspirated and omnidirectional!
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Updated at source:
Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution — Noncommercial
This is a theoretical 1HP siren for ACA's Screamer series. Uses the core of an ACA Hurricane MKII, now as a vertical omnidirectional naturally aspirated siren.
Probably would be a Klaxon SS6 competitor. Doubt it would be able to compete with a FS Model 2.
README:
All stls are already in the correct print orientation.
Motor:
Any 2.8 or 2.9 inch "Samsung" blower motor. Right now the motor cover only accommodates 2.8" but will make a 2.9" version later.
I'm using a 250v 8uf capacitor, but i will later add a larger junction box that fits a 10uf!
https://www.amazon.com/gp/product/B0143VJN40
Hardware:
M3x10mm machine screws (13x)
M3x8mm machine screws (8x) (hold hat and junction box)
M3 nut (13x)
M2x6 machine screws (hold the junction box lid on)
M3x5.7 threaded inserts (7x) https://www.amazon.com/dp/B08BCRZZS3
Rotor installation:
8mm to 8mm 14mm OD 25mm L shaft coupler
10 gram slotted weights (20x) This link gets you 3 rotors worth of weight!
https://www.amazon.com/dp/B0D2Q2QW43
To secure the weights, simply push them into the bottom of the rotor. They should just slip right in. If needed, you can tap them in with a hammer. These are made of steel, so it should be alright to take some hammer taps.
Put a set screw in both top holes on the shaft coupler. leave the bottom two screw holes empty. Then tap the coupler into the rotor from the top with a plastic mallet or plastic screwdriver handle.
Make sure the set screws are lined up with the access cutouts in the rotor hub. Don't use a hammer, you can damage the soft aluminum.
Once you have assembled the siren, you should secure the siren with tape or bolt it to a mount (M4 machine screws). This siren iis compatible with Demetrius's 1/3 scale ACA siren mounts!
If u don't do this, the siren will spin on startup like that Screamer did at Sirencon that one year.