Engr semester project begin

Introduction

  • A napkin sketch is a preliminary design tool often used in engineering to quickly convey an idea or concept.

  • The instructor, Dr. Mola, utilizes a napkin sketch to facilitate a project-related discussion with the students.

Napkin Sketch Overview

  • The sketch seen by the students is intentionally incomplete, encouraging them to identify missing information.

  • The class is given about 30 minutes to review the document and formulate questions about the project.

Activity Structure

  • Students are instructed to write questions in their engineering notebooks.

  • The questions will be discussed in pairs during team presentations.

  • Interaction with the client involves asking questions to clarify requests in a request-for-proposal (RFP).

Components of the Napkin Sketch

  • Component Identification

    • Clarification that the drawings represent one single component, not multiple.

    • Three Drawings: Cross-sectional view, bottom view, and top view of the bottom plate.

    • Isometric View: Represents the faceplate as a separate component.

    • Bronze Bushing: Detailed as another individual component.

3D Models to be Created

  • Students are to create three 3D models:

    • Bottom Plate

    • Faceplate

    • Bronze Bushing

  • Reminders regarding shapes:

    • Circles may appear as rectangles in cross-sectional views and need to be treated accurately in design.

Class Schedule

  • Class duration is approximately two hours, with a structured outline leading to student inquiries.

  • After the initial 30 minutes of review, teams will be called out to discuss their findings and pose their questions.

Questions Prepared by Students

  • Common Themes for Questions:

    • Unit specifications of dimensions (e.g., centimeters, inches).

    • Material specifications and types for construction.

    • Clarity on design interfaces and how individual components connect together.

    • Specific grievances about missing information on the napkin sketch.

Team Discussions

  • Teams are encouraged to address:

    • Measurements for functionality (e.g., moving 1 liter of water vertically).

    • Understanding implied specifications for components, such as the depth and alignment of holes.

    • Understanding their layout in 3D models vs. 2D interpretations.

Design Concentrations

  • Emphasis is placed on understanding how different components fit and function within the overall system.

  • The faceplate's attachment method to the top plate and the bushing's positioning are of interest.

  • Making sure drawn dimensions correlate with intended design usage.

Engineering Design Process

  • Aspirations for collaborative research to find existing designs or components similar to the current project.

  • Multiple views (isometric, top, bottom) should not confuse the overall understanding of the component's structure.

Conclusion

  • Documentation through questioning in notebooks will provide clarity and insight for project evolution.

  • Encouragement to maintain a dialogue about assumptions and confirmations related to design aspects.