Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Printed out a new iteration of our design: larger flap, more flexible durometer
Ran a test to calculate the friction forces on the current design
Video of experiment below
Conclusion: the seal provides too much friction
Goal: reduce friction to less than 1 Newton
Accomplishments from Previous Week
Printed new iteration
Ran test on iteration
Purchased PDMS
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Meet with Prof. Talke on Friday (Week 4) to talk about PDMS casting and molding methods
Print a mold
Attempt to cast out a part
Decide on a clamp design
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
"The adult colonoscope through the device was very tight - could barely pull it off after trying (but did not use lube). " (via email)
"The two caliper measurements are at the very tip and little further back. There is a little variation with the scope getting more narrow further from the tip (insertion tube) but I think we should adjust for the thickest part (the tip or distal end). The last picture shows the dimensions of the scope as calculated by the processor" (via email)
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Make two halves then glue it together
Put tango black or vero clear in the oven
size of the disks, godilocks test
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
Ability to successfully cast a part out
Resources or Information Required but not Available
N/a
Schedule
Finalizing designs for inner and outer seals
Budget (list amount spent and amount remaining)
Sylgard 184 Silicone Encapsulant Clear: $129.43
Progress on Report and Webpage