156B Week 9

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

• • Wiring

    • Wire labeling and documentation in progress

    • AC power distribution blocks added

  • Color detection

  • Calibration in progress. Electrical tape on base plates is inconsistent: trying out spray paint 

  • Gauge holder

    • Reotemp machine shop finished a few sets of parts; team was able to test fit a few holders

  • Gravity roller curve tables

    • Parts for 2nd curved track arriving on Tuesday

Accomplishments from Previous Week

• Wiring

  • Noticed significant issues with previous team's wiring

    • Additions/edits to wiring diagram so that it reflects all physical wiring

  • Spoke to sponsor, they will have their engineers clean it up when we are done

  • Color sensor

    • Attempted calibration using electrical tape, was too inconsistent and too shiny

    • Calibration is accurate for red, yellow, and orange spray paint (more colors to test next week)

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

• • Finish construction of conveyor loop (Desi, Elaine, Ethan)

  • Implement temperature probe into heating system (Ethan)

• Add new components to AC power distribution (Elaine, Desi)

  • Create detailed system testing plan (Justin)

  • Finish spray painting gauge holder baseplates and calibrating sensor (Ethan)

  • Fully assemble 6 more gauge stands (Ethan)

  • Review team report, website, and upcoming presentations (Team)

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

5/22/2020 Meeting with Eric & Brian:

• • Temperature probe will be ready sometime next week

  • Will have parts for 6 holder stands ready to test fit that day (Friday)

  • Wiring Diagram:

    • Haven’t had their engineers fully look into the wiring part; will make note of that and have someone clean that up in the back end. 

  • Final design review:

    • 6/5 same time as normal meeting time (8:00am)

    • Will invite other members including the Houston team

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

5/21/2020 Meeting with Prof. Tustaniwskyj:

• • CONCLUSION: The entire system needs to be reviewed and brought up to code but we don’t have the time to go through and do that ourselves right now

    • All new wiring for Arduino will be done using crimps

      • Bought a robust case for the Arduino 

    • Will be implementing some AC power distribution blocks to add in the Arduino power

    • Will be adding on to existing wiring diagram and making sure our parts are accurate and well documented but not checking everything existing

    • Starting a wire list documentation but only for new additions

    • Team is not going back and documenting what is already there or fixing it up

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

Comments from Preliminary Design Review Presentation (5/18/2020):

• • Improve information flow diagram (Slide 12)

  • Too much content on some slides; hard to follow

  • More analysis and testing

Risks and Areas of Concern

• • Time crunch, may not be able to get color detection system fully integrated in time

    • Calibration and sensitivity testing needed

    • Somewhat involved wiring process (I/O board needs power, connections to PLC module, connection to sensor)

    • PLC code is done, but will likely need some time to debug

Resources or Information Required but not Available

Schedule

• Final presentation scheduled for 6/5 at 8:00am

• Updated Gantt chart.

Budget (list amount spent and amount remaining)

• • Total spent: $5,586.54

  • Remaining: $4,413.46

Progress on Report and Webpage

• • Made significant additions to the report for Week 8 Draft

  • Slight updates to web page