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Rough Schedule

11/03 - order parts, finalize design, and create housing template
11/10 - finalize housing template, laser cut housing, begin assembly
11/17 - finalize assembly and begin programming
11/24 - finalize programming
12/1 - solve any remaining issues and take care of fine tunings
12/2 - make and practice presentation
12/3 - final presentation
12/4 - documentation


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Research + Info

Examples of other work

(* what the hell NAMTA?

MVP. We built a disc with evenly spaced holes attached to a rotating motor and a 9V battery. Blowing on the spinning disc does indeed produce pitch! The motor was rather noisy until we figured out a position to squeeze it (near the top) that makes it virtually silent. Then, we iterated, and attached a potentiometer (fader) to control the voltage. This successfully created a moving pitch that sounded very siren-like!

The Plan. We want to build a "siren organ" with some faders to control rotational speed of the motor(s) (frequency), other faders to control the applied air pressure (volume), and buttons to control solenoid valves to turn the sirens on/off.

Unlimited Time + Resources Vision. It's more about unlimited money than time--I think we can achieve something cool. We're ditching the bike idea, I think.

Elevator Pitch. An "organ of sirens" with the feel of a MIDI instrument. Faders control the volume and frequency of mechanical sirens, while buttons turn them on and off.

Materials Needed
* motors (6, one for each disk)
* MOSFETs (6)
* tubes/air hose (24)
* solenoid valves (24):
* 7psi model (might need more):
* air directional control valves:
* arduino (1)
* power source (1?)
* keys/piano/organ interface (faders + buttons + enclosure)
* disks (12)
* enclosures for the disks (6)
* horns? (6)
* also check out air (pneumatic) controls for air rifles, potato canons, pipe organs, etc. shows how to make a homemade check valve with pvc connectors and a bouncy ball.

Next Steps. The next steps are to build a 5-fader, 4-button, 1-motor model, where 4 faders are devoted to air hoses over the individual rings of 1 disk (different pitches) and control the air pressure of each hose, and 1 fader is dedicated to the spin of the motor. The 4 faders could possibly control ball valves to partially open/close the air hoses as opposed to flow, which we do not have a good grasp of how to control (cheaply; a regulator might work). The buttons could also serve as the valve control, or could power on/off the air supply.