Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Laser cut housing and assemble the parts
Make the stopping part longer so that the tape can grip around the gears better
Shorten the blade that we purchased to fit housing tolerance
CAD possible “chuck” mechanism proposal for instructor feedback
Accomplishments from Previous Week
Changing the layout of the inner system to allow for the tape to be housed on the top and back of the product
Figuring out the necessary cutting tools needed to be able to reliably use electrical tape
Figuring out how to add a trigger system to make the bundling easier
Testing different tape types soaked in water
Laser cut clear acrylic housing to see inner mechanisms better
Looked into other tape winding mechanisms
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Prepare for the final design specification
Add the potential trigger mechanism
Explore on chuck mechanism to add to our final design
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Meeting: 2/11
Gave us surgical markers and sterilization sponges
Sponges are used by gently dabbing or gently scrubbing
Order goes: numb, tape, wash, mark, procedure
Test the tape adhesive retention for at least an hour
Room temperature water is fine
Soak in water, then spray with water every 5 minutes for an hours to simulate bleeding
Electric tape is the optimal tape used
Tape the full length of the hair, then bend over and tape again so the hair isn’t so far from the head
Procedures use either staples or sutures
Ethicon/Johnson and Johnson Surgical Stapler
Think about how we can create a simulation
Betadine sponges
When showing the gun, hair got caught on the screws
Will try to test current product with electrical tape in wet hair or dabbed with betadine before sponsor meeting
Will meet with him Friday 2/21 to get feedback on the test and the new housing cut
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
2/13
TA asked about feasibility of putting trigger mechanism to the gear and also cutting the tape
Suggested to use either only brute force or only trigger action
Suggested a different hole type for the bar linkage
Emphasize user experience
Both doctor and patient
Consider health condition of patients
What if they’re old or unhealthy? Will their scalp need more tender care?
Find minimum force requirement for the whole system
Compare this to thresholds for healthy and unhealthy patients
Survey: whether people are comfortable or not with our product
On home page, make more direct comparisons (GIF captions especially)
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
There are issues with incorporating trigger system that enables it to also cut the electrical tape
Updated, bigger parts need to make sure that the hair bundle is able to go through the gear system
Considering using a mechanism similar to a scroll chuck to try to wrap the hair
Resources or Information Required but not Available
https://www.youtube.com/watch?v=9kp2ApIFVts (tape winding product)
Schedule
3D print or laser cut updated parts
Work on final design presentation
Test the final design product with watered hair or dabbed in betadine
Budget (list amount spent and amount remaining)
Two electrical tapes 13mm ($ 5.78)
Progress on Report and Webpage
Update Report according to Professor and TAs’ corrections