156B Week 8

Project Status

Balloon Support

Current mold seems to produce quality balloons. Though the spacer breaking off seemed to be a minor problem before, a solution was found by just using some mold release to minimize how much the balloon stuck to the mold. This required far less force to release the balloon and allowed for careful mold separation. The final ballon mold being printed now, simply has a filleted edge to the spacer to aid in support without taking too much space.

Controller Housing

The temporary breadboard driven controller housing has been developed as a compact solution before implementation of the PCB. We have decided to shift focus away from the PCB and towards getting a final initial prototype. The PCB is still in development and will be worked on following this quarter. The housing is currently being printed out.

Past Week Accomplishments

Soldered and set up Arduino Pro Mini for future uses (Karie)
Cleaned up the wires and made sure all components function properly (Karie)
Made more balloons and documented the process (Udai)
Designed the breadboard housing and started prints (Ryan)

Sponsor Feedback

Will help to 3D print some of the parts and looking forward to the final product
Can try getting a test with a tracheostomy test dummy in the sim center

Instructor Feedback

Plan to focus on the breadboard and develop the housing for it
Automatic control looks good

Nest Steps

Set up wires for the breadboard and check power distribution (Philip)
Work on PCB (Philip/Ryan)
Get breadboard housing made and developed (Ryan)
Develop analysis on the balloon (Udai)
Combine all parts together and start comfort test via voluntary roommates (Karie)

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