156B Week 4

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

• • Fabrication phase in full force

    • Designs for liquid container adapter fully finalized

    • Fabrication of liquid containers, solid dispensers, and piping systems to be completed by the beginning of next week

Accomplishments from Previous Week

• • Spoke to Steve Roberts on feasibility of hacking into the induction cooktop

    • Good news: process should be easily doable 

  • Nailed down design concept for the lid - stirrer mechanism

  • Acquired final approval from sponsors for liquid container adapter 

    • Obtained quote along with approval from Chris Cassidy regarding 3D print of the adapters

    • Scheduled to print on 4/21/15

  • Began consolidating 3D model of overall assembly

    • Updated as final designs are consolidated

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

• • Fully assemble the liquid container adapter (Howard)

    • Test adapter by actually putting liquid inside

  • Finish fabrication of the solid dispenser (Michael)

  • Finish design and assembly of the piping system (Edwin)

  • Begin testing with electronics (Pablo)

  • Order the aluminum extrusions needed for the prototype 

  • Order parts necessary for the fabrication of the lid - stirrer assembly

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

• • From in-person meeting with sponsors (4/16/15):

    • Continue updating the overall assembly - next meeting to present final overview 

      • Updates occurring when relevant 

    • Liquid container:

      • Consider feasibility of machining from metal stock (with regard to the adapter)

      • Simple design - multiple parts and threading on a few for attachment

        • Action taken: Investigated metal stock and compared with the price of 3D printing

          • Will consider machining more if 3D threads do not work 

      • Discussed Mason Jars as the liquid container 

        • Action: Go ahead

    • Cleaning system for piping discussed:

      • Agreed upon the attractiveness of cleaning milk system using water container 

        • Action: Begin design and assembly of piping system

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

• • From in-person meeting with Dr. Delson (4/14/15):

    • Remake presentation for greater clarity

      • Completed

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

• • N/A - No comments were made that has not yet been indicated on Week 3's Webpage Update

Risks and Areas of Concern

• • 3D printed threads' compatibility with the purchased nut

  • Implementation of the fan 

  • Methods of attaching various components onto the aluminum extrusion frame

  • Electronics' power integration (carry-over from last week and cannot begin investigating until components are fabricated)

Resources or Information Required but not Available

• • N/A - Everything is on track at the moment

Schedule

• • Describe upcoming milestone

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • Spent: $215.54

• Remaining: $784.46

Progress on Report and Webpage

• • Updated webpage

  • Put up new CAD files

  • Continuing compilation of pictures and data for following report