156B Week 9

Overview of Status of Analysis, Design, Fabrication, Tests, etc.

• • Bought parts for the fabrication of final design

  • Will fabricate is early in the week (hopefully finish on Monday), and test it later in the week

Accomplishments from Previous Week

• • 5/15: Completed CAD of sampler design (Joseph)

  • 5/16: Final Design Presentation

  • 5/17: Researched parts to be purchased for final design (Bridget)

  • 5/18: Purchased parts for the final prototype (Tanima)

  • 5/19: Contacted Chuck for a phone call about the prototype test & finalized second draft of the report (David)

  • 5/19: Discussed the prototype test and areas of concern with Chuck via phone

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• Machine vertical metal columns (Joseph)

• Machine new circular sheet metal pieces (Tanima)

• Figure out mounting of the Camera (David)

• Machine brass wire cloth to replace chicken wire (David)

• Fabricate tubing/dispenser & swaging component (Bridget)

• Draft of Poster (All)

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)

• • Phone call with Chuck on 5/18:

    • SPAWAR will be sampling on Tuesday - this will be a good time to test our design if it's done, or it it's not this is a good time to see them actually sample

    • We mentioned that with the prototype test, the primary issue was that the cutting wire woven through the mesh bag did not give sufficient cutting force

      • He favored having separate mechanisms for the cutting wire an mesh bag

      • We will have two separate cords running up to the operator: one to actuate the cutting an the other to close the mesh bag

    • We asked Chuck's preference on the two camera models we researched: (1) GoPro ($200) or (2) Xi Action Camera ($70)

      • He said that the team just purchased a GoPro  camera for this project, so we will likely use it

    • For better camera visualization, we told him that we were looking into buying scuba LED lighting

      • He said to look into going to the Deepsea Power & Lighting store, where they have high-end products, including cameras and LED lights

    • He might be able to meet Monday or Tuesday near SPAWAR to join us for the testing

Instructor Comments from Last Meeting and Actions Taken to Address these Comments  (indicate date of comments and if via email or in person)

• • Final Design Review presentation (5/16)

    • Noted that there is no such thing as Nylon Music Wire

      • When we purchased Wire we got music wire as well as nylon wire and fishing line

Comments from Other Students in the Class (indicate date of comments and if via email or in person)

• Anthony noted that wi-fi might not work with a Go Pro underwater

  • This is true, so instead we will take videos underwater and post process them to get the images we want

Risks and Areas of Concern

• • Will there be cord entanglement leading up to the operator when using two cords?

  • How will we attach the plastic tubing that will join hold the cords?

  • Where will we mount the camera and LED lights?

Resources or Information Required but not Available

• • N/A

Schedule

• • Finish final prototype (5/23)

  • Add the CAD of the dispensing cords to final CAD design (5/24)

  • Test in the Del Mar Lagoon or near SPAWAR (5/24)

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • Spent: $528.87

  • Remaining: $2071.13

Progress on Report and Webpage

• • Completed second draft of report and gave to team 5 for editing

  • Website

    • Updated the budget form

    • Updated the "Team" page

    • Added the SPAWAR logo to the "Team" page