156B Week 6

Current Status - Rings are securely mounted to the chamber but it is still tilting as fabric is tilting. Air leakage is occurring at the back of the user.

During last week, we looked for where air leakage was occurring as that is our priority. We could feel that air was leaking out through the gap in our back which seem to be the main source of the leakage.

Goals for Next Week.

• Check for air leakage - Reinforce the leakage to check if the chamber can maintain the negative pressure passively.

• Set up recording pressure log - Record pressure verses time to see how it changes over time.

Sponsor Comments from Last Meeting (02/09/21).

• Workstation - We will be bring the chamber back to the lab and going to do some testing.

Instructor Comments from Last Meeting (02/11/21).

• Clarify the use of locking mechanism

• Set up pressure logger with sensor and Arduino.

• Avoid using square tubing.

• Consider sailboat cleats

Risks and Areas of Concern

• Leakage in our back

• Fabrics Tilting

Budget

Previous Balance: $2368.19

Balance Used This Week: $20.36 (Wetsuit Repair)
$7.49 (Neoprene Glue)

Remaining Balance: $2340.34