Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Updated motor and spool design.
Currently awaiting materials for fabrication.
Accomplishments from Previous Week
Motor-spool prototype parts ordered - one way bearings and motors
FEA of specific motor-spool SLDPRTs
Goals for Next Week (list names after each item). Use specific and measurable objectives.
3D print applicable prototype parts (esp. ratchet mechanism)
CAM and machine motor-spool prototype
Develop control logic for motor w/ Arduino
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Proceed with micro-scale prototype of spool - higher confidence it will work
Proceed with macro-scale prototype of ratchet mechanism to fully flesh out concept
Wires sticking out of rabbit is not that huge of a hygiene concern
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Explore potential magnetic coupling from implanted device to outside of body (Dr. T, 1/15/19)
Discussed with sponsor, more likely applicable to passive mechanism (requires lower torque to be transmitted)
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
Machinability of pawl and ratchet
could potentially 3d print features - connex layer height resolution 6 micronÂ
Risks and Areas of Concern
Implementation challenges of passive (ratchet) mechanism at micro-scale
Feedback on motor position
Resources or Information Required but not Available
Feasibility of stepper motors at micro scale?
would solve problem of position feedback
Schedule
3d print proof-of-concept ratchet, begin sourcing stock for machining actual size spool mechanism
Budget (list amount spent and amount remaining)
$12 spent
$1488 remaining
Progress on Report and Webpage
Uploaded first draft of section 1 of the final report