156B Week 3

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

• • (Due to a confusing schedule moving, the following status might still be in working progress.)

  • For design, modification and new design are being made based on suggestions.

  • The project is temporarily within the analysis process, where new ideas are added.

  • A better prototype would be accomplished with the high-quality 3D printer after designs are modified. 

Accomplishments from Previous Week

• • (Due to a confusing schedule moving, the following accomplishment might still be in working progress.)

  • More design concepts have been brought up for consideration and modification.

  • Ask for suggestions from the machine shop about manufacture. 

  • Complete presentation for design proposal. 

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

• • Make the analysis of friction and torque for each selected design. (All members)

  • Look for potential purchasable items on McMaster. (Raymond and Jonathan)

  • Make the second prototype with the high-quality 3D printer. (William and Tianyi)

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

• • The cutting length needs to be sufficient, which requires better and more stable clamping design. (4/9/2018 from Dr. Lin)

    • Action: Modify current clamping design with a less interior blade length.

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

• • More design concepts are needed, where blades are better constrained. (Also consider how things would be likely to fail.)  (4/11/2018 from Prof. Delson) 

    • Action: New design concepts and modifications are being made.

  • Further analysis needs to focus on the impact of torque and friction. (4/11/2018 from Prof. Delson)

    • Action: Analysis would be made for each selected design. 

  • More communication with the sponsor. (Project name, index number, show all concepts) (4/11/2018 from Prof. Delson)

    • Action: Emails and updates would be sent in a more frequent manner. Better preparation would be made for next appointment. 

  • Manufacture and prototyping require further thoughts and actions. (Order parts from McMaster, use the high-quality 3D printer, ask for suggestions from the machine shop.) (4/11/2018 from Prof. Delson)

    • Action: Consult with Chris and Ian for prototyping and manufacture suggestions.

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

• • Stability (How to apply strong constraints to the blade while keeping an efficient loading process.)

Resources or Information Required but not Available

• • N/A

Schedule

• • Describe upcoming milestone

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • Spent: 

    • $33 for four blade clamping products

  • Remaining:

    • $3467

Progress on Report and Webpage

• • The first draft of the report has been uploaded to the website.

  • The website would be better updated.