156B Week 9

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

• • Refined CAD

    • Made separate CAD for armbar for improved clarity

    • Improved tolerances to allow parts to fit easier/better

    • Removed spring mounts

    • Combined camera mount with damper mounts

  • Completed further analysis of dampers

  • Continued rigid body analysis

  • Bought pipes to redo armbar from Home Depot

Accomplishments from Previous Week

• • Second iteration of CAD camera mount completed

  • Updated report

  • Worked on rigid body analysis

  • Tested damper samples

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

• • Test assembled prototype (everyone)

  • Analyse damper/print more as time allows (Andrew, Mark)

  • Refine rigid body analysis (Ang, Zoe)

  • Finish poster (everyone)

  • Finish report (everyone)

  • Update website (everyone)

  • Prep parts for final product assembly

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

• • N/A

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

• • 5/23, in person

  • Further investigate damping material

    • Find k value at least if c value not possible

  • Check when joints will arrive for assembly

    • Check height, make sure it allows adequate lap room

  • Fix tolerances on printed parts

    • Keep in mind overdoing tolerances on rough prints will lead to fine prints being too loose

  • Fix CAD to reflect real dimensions, to make assembly and presentation easier

    • CAD was updated

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

• • Will the hinges withstand the forces applied to them?

  • Are the parts too difficult to machine?

  • Currently the pipes turn where they connect with the angle - how constrain this movement?

    • Glue parts together

    • Hammer pipe so it's no longer perfectly circular

Resources or Information Required but not Available

• • N/A

Schedule

• • Assembled and test full assembly on wheelchair

Budget (list amount spent and amount remaining)

• • N/A

Progress on Report and Webpage

• • Report turned in for peer review

  • Webpage updated weekly