156B Week 5

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

• Injection machine assembled by Mark. We will request testing to determine actual force required to inject. 

• Each team member focusing on a key area of the injection machine to optimize. 

• Finalizing design decisions and moving on to prototyping. 

• 3D model of the system is currently being designed on Autodesk Fusion 360.

Accomplishments from Previous Week

• Connected with sponsors over Slack.

• Met with Professor Delson to give project updates and asked for advice about project decisions and methodology.  

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

• Finalize design decisions for key components.

  • 3D Printed Molds and Mold Cage (Brian)

  • Nozzle (James)

  • Injection Effort (Katherine)

  • PID Control and Measurements (Kaleb)

• Discuss with sponsors during weekly meeting and begin prototyping.

• Explore variations of precious plastic injection machine done by the precious plastic community. 

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

Notes from continuous Slack communication:

• Testing with injection machine can be done by Mark.

• Meetings with individual sponsors and team members can be set up as needed through slack. 

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

Notes from the previous meeting with Professor Delson: 

• • Discussed 3D printed mold, ABS material, 3D printer resin, mold cage (Brian)

    • Add cost of 3D printer models to table of findings.

    • Could consider cost of material as well.

  • Discussed barrel/nozzle analysis with written analysis on barrel strength (James)

    • Will reach out to Mark to ask about force required.

    • Contact Steve to ask about melted plastic.

    • Look into alternatives to valve, having a plunger to push out plastic and use a seal to prevent plastic dripping out

    • Note that the area of the nozzle outlet affects the analysis.

  • Discussed temperature sensor, thermocouple placement (Kaleb)

    • Look at hose clamp contact area

    • Contact Prof. Tustaniwskyj about thermal paste

  • Discussed scissor jack, hydraulic-pneumatic, and linear actuator lever component (Katherine)

    • Going with the linear actuator lever option

    • Would need a ratchet to lock the lever in place

• For next meeting:

  • Be in contact with sponsors (Slack channel).

  • Communicate individual work with team (3 weekly meetings).

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

• Injection machine will not be delivered. 

Resources or Information Required but not Available

• N/A

Schedule

• Weekly Meeting with Sponsors (4/29/20)

• Proof of Concept Presentation (4/29/20)

• Weekly Internal Team Meetings (3 times a week)

• Weekly Meeting with Prof. Delson (5/1/20) 

Budget (list amount spent and amount remaining)

• Total Budget: $2600

• Amount Spent: $120

• Budget Remaining: $2480

Progress on Report and Webpage

• Week 5 Updated