Weekly Progress Reports (see sidebar), the Gantt chart, and this Project Management page should be printed out before meetings with the sponsor and instructor.
All team members should be able to explain all items on the progress report.
Place a "*" at the beginning of the title of the active week Progress Report (see * in sidebar).
*Week 10 Report: Coastal Monitoring-Ropeless Traps
Project Objectives
Concisely list and prioritize the project objectives and constraints
High Priority Objectives
Develop a torsion-spring timing mechanism that will effectively rotate the cam needed to raise the latch.
Develop an effective and responsive trap retrieval rope management system
Determine a proper latch mechanism (reduced friction at contact points)
Research and improve O-Ring Design (considering material costs and the likelihood of internal components corroding)
Second Priority Objectives
Reducing the friction on the cam shaft
Ensuring all Materials are resistant to corrosion from saltwater (Proper O-ring sealing Creating a low self contained, low power storing device
The buoy should be able to raise the lid of its enclosure due it’s buoyant force once the latch has been raised.
Other Constraints and Issues
Limiting cost to a reasonable amount
Simplifying front end user interface so that the device can be reset quickly
Storage of the mechanism so that it will fit within the trap itself.
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WOW Design Solution
Designing the entire mechanism to be manufactured under $20
Omnidirectional release to be able to handle the variable terrain of the ocean floor
Automatic safety release to guarantee recovery of the device
Reliable system that can be used for over a year without any maintenance
Reset of timer occurs under 30 seconds
Risk Reduction Strategy
List areas of risk and strategy that will be used to eliminate risk early in the design process.
Latch-CAM-Spring Timing Mechanism: Torsion Spring Selection Process
Replacing the built-in electrical motor system with a mechanical winding spring system. Such risks involve choosing proper torsion springs (e.g. helical spring idea, proper spring index, number of coils, overall cost)
Strategy: Determining proper spring dimensions first and then research and contact companies for information about strengths and weaknesses of our selection of torsion springs.
Performing torque analysis of the latch spring system to determine the minimum torque needed for the final clock gear
Intermediate Milestones
Meet with Eric Krebs (March 13)
Finalized CAD (April 1)
Proof of Concept Prototype(April 10)
Test Prototype in Controlled Conditions(April 12)
Field Test (May 4)
Develope Supply Line for manufacturing of device at scale (June 1)