156B Week 3

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

• Filling fixture will be ready for sponsor feedback during next week (refine design, print, assemble)

• Design of incubation chamber needs to be done (possibly working with Artificial Bone Team)

Accomplishments from Previous Week

• Completed Design Proposal Presentation

• 3D-printed basic prototype using MakerBot PLA

  • Current Design: https://cad.onshape.com/documents/7cffbd0b213f152a0bcc4889

  • Based on evaluation of initial prototype, made design changes to optimize for 3D printing

• Worked with Chris Cassidy/Benjamin Shih to determine best 3D printed material for capillary tube cradle (part in the print queue, job expected to be done Friday)

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

• • Design the acrylic case (Tianyang) (04/17/16)

  • Modify the existing design based upon findings from the prototype (04/15/16)

    • Tolerances (Edwin)

    • Mechanical stops for rotator (Connor)

    • Increase the size and add a handle to the cradle (Reiley)

    • Other small revisions (TEAM)

• 3D print updated, more-refined rapid prototype of design, using Stratasys 1200 (TEAM)

• Reorder extra hardware for next prototype iteration (Edwin)

• Get feedback from sponsor on filling fixture (TEAM)

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

• • Work with the bone team to develop an acrylic case (04/07/16)

    • We are in the preliminary stages of scheduling a meeting to discuss if our goals are mutually achievable

Comments from Other Students in the Class (indicate date of comments and if via email or in person)

• • Alonzo: Call the device "the Mucenilizer" (04/07/16)

  • Using a double a hinge instead of a hinge and slider (04/07/16)

Risks and Areas of Concern

• • Proper sealing of the acrylic incubation box

  • Even filling of the capillary tubes

  • Tolerances

Resources or Information Required but not Available

• • User feedback, available after initial trials

Schedule

• • Refine design and reprint using the Stratasys 1200 (04/19/16)

  • Hand off new prototype to sponsor for trials (Week of 04/18 pending sponsor response)

  • Design acrylic incubation box (04/17/16)

  • Update Gantt chart

Budget (list amount spent and amount remaining)

• • $78 spent, $1922 remaining

Progress on Report and Webpage

• • Uploaded Design Proposal Presentation

  • Uploaded selections of the final report