Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Testing in air
Sampler easily dispensed and cutting and mesh bag mechanisms worked well with the steel cord and modular tubing
Testing in pool
Slight tipping of sampler near the bottom of the pool
Could possibly be due to misalignment of the three tubes attached to the sampler that were hose clamped together
When tubes are unwound, easy to pull steel cord through tubing
Fabricated two pulleys to wind the two cutting wire & mesh bag wires
Accomplishments from Previous Week
Completed first draft of poster (All)
Completed final draft of report (All)
Finalized and bought action camera, GoPro camera, and GoPro housing (David)
Sewed mesh bag together for final prototype (Bridget)
Joined brass woven material and interfaced it with the steel bars and cutting wires/mesh bag (Joseph)
Machined pulley and pulley housing for interfacing between top an bottom cutting and mesh bag wires, respectively (Joseph)
Assembled steel cord, tube, and quick connect dispensing component (Tanima)
Updated Dr.T and Pedro on prototype progress (David & Bridget)
Finalized project budget form (Tanima)
Goals for Next Week (list names after each item). Use specific and measurable objectives.
N/A
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
We set up our poster session with Chuck and Kara for Tuesday, June 7 at 3pm
They want to replace the three tubes attached to the sampler for stability with rope-like material with parachord
Chuck is unsure about the modular tubing and thinks we can simply have the steel chords
But doing so could lead to higher likelihood of actuating the cutting wire/mesh bag early
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Wed 6/01:
We told Dr. T and Pedro our concern over the large friction in the PVC green clear tubing that was hindering the steel cord to go through
Their suggestion was to use Teflon tubing
Since we did not have the time to order it on McMaster and wait for it to finish our prototype, we went to Home Depot
Although Home Depot did not have it, we found 20' Vinyl tubing that we found worked well with our steel cord, so we bought that instead
Additionally, Dr.T suggested using quick connectors to connect individual smaller pieces of tubing to get variable lengths
We cut the Vinyl tubing into three 5', two 2', and one 1' pieces
We bought a few 1/2"x1/2" quick connect unions to connect these individual tube pieces
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
N/A
Risks and Areas of Concern
N/A
Resources or Information Required but not Available
N/A
Schedule
Ensure that prototype is reliable and works efficiently
Tues. 6/7 SPAWAR presentation with Chuck & Kara
Budget (list amount spent and amount remaining)
Budget: $2700
Spent: $800.30
Remaining: $1899.70
Progress on Report and Webpage
Report
Updated final prototype design components
Update report based on comments/corrections from team 7
Website
Updated instructions on use of prototype
Updated photo of final prototype design
Updated final design components
Updated budget form