156B Week 3

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

Accomplishments from Previous Week

● More materials individually tested as they have arrived (Miles and Garrett):

○ Heat hardened neoprene

○ Carbon fiber fabric

○ Stainless steel meshes (60, 80, 120)

○ High density EVA foam

● Successful attempt at sewing a sock using only neoprene (Ho)

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

● Comprehensive combination material testing (Garrett and Miles)

● Beginning shoe designing and testing (Jordan and Ho)

● Will need to regularly switch back and forth between picking materials and designing shoes due to the difficulty of constructing shoes with certain materials (Entire team)

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

● Potentially consult a cobbler to help create prototypes out of the materials we’re testing

● Try redesigning the pendulum material holder so we could test impacts at angles other than 90^o

● A prototype with the fewest moving parts might be ideal

● Make a prototype that is the material duct taped or glue together concurrent with testing

● Put your foot in the “prototype” and walk around in water. Drag and functionality will be quickly apparent, as well as comfort.

● Try any weirder material options (sponge?)

● To prepare for deflecting a barb when directly stepped on we would need a smooth, non porous material, not a fabric-like material.

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

● Waterproof vs. keeping sock on, neoprene is thin and comfortable but materials that might be puncture resistant are likely not gonna be stretchy or comfortable

● Scales - manufacturing

● Protomold - soft aluminum molds

● Material for top of the sock vs. material on the bottom

Risks and Areas of Concern

● Lack of access to pools means rough prototype socks must be tested at the ocean, adding time to each testing cycle

Resources or Information Required but not Available

Schedule

Describe upcoming milestone

● testing the water sock

Update Gantt chart.

Budget (list amount spent and amount remaining)

amount spent $237.87

amount remaining $762.13

Progress on Report and Webpage