Week 2
Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Calculations have been completed and two designs are left to decide between, with certain portions repeating between each design. Motors now need to be ordered, and more detailed, functional CAD needs to be completed.
Accomplishments from Previous Week
Simulations were redone and validated, providing more reasonable results (5- 50 Gs)
We decided on the slider mechanism for the design, and we are leaning towards a certain design due to its simplicity.
CAD was not fully completed in order to best select dimensions, but can be finished in the next two days.
Our goal of completing the tool paths was too ambitious, as our CAD was not completed.
Significant progress has been made on the website layout
Components were researched, but not selected as our exact dimensions were not chosen.
Design Proposal Presentation Completed. When creating our goals for this week, we forgot to allocate time for this presentation so overestimation occured
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Complete CAD: Paul, Allyson, Jack
Finalize Dimensions: Paul, Allyson, Wei, Jack
Decide on overall design to pursue: Paul, Allyson, Wei, Jack
Begin toolpaths for design: Paul, Jack
Purchase motors: Allyson, Jack
Compile McMaster Cart: Jack, Wei
3D print gears to test: Wei
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
In-Person, 3/15: The sponsor wanted us to simulate our designs to see of they could function. By creating CAD for our designs and using Solidworks, these simulations were made.
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
In-Person, 4/2: The instructor expressed concern about the G forces expected. Our simulation calculations were redone, and after identifying an error, the required frequency was reduced by a factor of 2*pi, reducing estimated Gs by 36 times.
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
Only applicable after a presentation.
4/3 we received our risk reduction comments. Common feedback included:
Good visuals/animations/organization
Good math inclusion
Presentation was rushed
Who was talking about what seemed random/uneven
Lots of reliance on questionable simulation
Risks and Areas of Concern
The main risk and concern that prevent you from accomplishing your goal. Try not to put minor concerns in here.
G force concern is still present, but significantly reduced
Safety when testing the design is a concern, with very high speeds and accelerations present
Can one of our two designs be manufactured easily, particularly the complicated gear?
Resources or Information Required but not Available
List them here and the instructor will try to help you.
None
Schedule
Describe upcoming milestone, Update Gantt chart, Budget (list amount spent and amount remaining)
Finalized design to start pursuing by next week.
Budget: $0 spent, $3000 remaining.
Progress on Report and Webpage
Background and Introduction of Web Page created, secondary purpose also added into webpage.
The webpage just requires the final design