1:1 Scale 3D Printable IMI AL1578 (UPDATE!)

 Motor: XD775 24V (RUN THIS SIREN ON 12 VOLTS)

I used this one:

https://www.amazon.com/dp/B08DG2KXZB?ref=ppx_yo2ov_dt_b_fed_asin_title

2X M4x12 machine screws (mount motor to stator)

https://www.amazon.com/dp/B0975M1H2S?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

13X M4x8.1 heat set threaded inserts

https://www.amazon.com/dp/B07YSV66Y5?th=1

13X M4x10 machine screws

 1x M3x5.7 heat set threaded insert and 1x M3x10 machine screw

https://www.amazon.com/dp/B08BCRZZS3?th=1

(hold terminal strip inside junction box)

Rotor:

5mm to 5mm brass shaft coupler.  20mm length, 9mm OD

Make sure to screw the set screws in so the head isnt sticking out the side, and make sure to align the set screws with the access holes before tapping the coupler in.  Use a mallet or hammer to tap it in.  

I recommend a plastic mallet or some sort of soft barrier between your hammer and the coupler.  It is brass, so you want to be careful not to damage it. 

Make sure to grind a small flat spot in the side of the motor shaft for one side of the set screw to sit against.  The motor has so much torque that the coupler will slip on the shaft no matter how tight you turn the screws without this D shaft modification.  

https://www.amazon.com/dp/B0D4TZ6KRK?th=1

For rotor weight, it uses 10 gram slotted weights (11x)

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.

The junction box has a cutout for ½" knockout conduit.  You can use a cable clamp connector, flex conduit fitting, or a PG13.5 gland. Whatever you want to use, anything made for a ½" conduit knockout.  I used a PG13.5 gland.

I put a terminal strip inside of the junction box.  This is optional, but i recommend it.

To connect your power wire to the motor, make sure to reverse the polarity.  Connect + on your power to - on the motor, and vice versa.  Otherwise the siren will spin the wrong direction.  I soldered my wires because i dont know what size spade connectors the motor uses.  Once i figure that out, I will update this description to include those.