156B Week 6

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

• • Designed and fabricated prototype test rail

  • Purchased all components for machine

  • Combined CAD of frame with rest of CAD

  • Updated CAD

Top View:

Accomplishments from Previous Week

• • Tested how long each tray should be heated at 300F

    • Need about 1:40min

  • Learned that halogen light bulbs reach much higher temperature than toaster and heat faster as well

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

• • Ben

    • Test halogen bulb with trays

    • Test Temperature controller with light to control the temperature range during heating

    • Test if higher temperature (above 300) will result in less time heating

    • Continue updating CAD

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

• • ·      Break risk level into probability and severity of consequence

    • ·      Find cfm (cubic feet per min) for compressed air

    • ·      Approximate rpm and torque needed for wire brush motor

    • ·      Have components adjustable

    • ·      ~40C is the OSHA limit for too hot

    • o   Depends on material and how easy it is to let go of material

    • ·      Metal box as insulation in heating chamber, covered with fiberglass

    • o   Don’t use wood

    • ·      Include frame in CAD

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

• • Measure how long after the tray is heated that resin can still be removed

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

• • Halogen bulbs are much more dangerous than anticipated (they get very hot very quickly)

Resources or Information Required but not Available

Schedule

• • Describe upcoming milestone

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

Progress on Report and Webpage