156B Week 7
Overview of Status of Analysis, Design, Fabrication, Tests, etc.
All motor component will be finished printing by 1200 on Monday, 5/11.
All of the hardware components have been purchased, shipped, and arrived.
Nuts, bolts, etc.
Assembly of the motor will be tested Monday (minus the coils).
Sponsors are still manufacturing the coils.
Coil holes will be tapped on Tuesday after the test assembly.
Accomplishments from Previous Week
Purchased all necessary hardware for the motor. (Kiernan/Kenan)
Hardware components have been delivered and currently in possession of the group.
However, still waiting for NPT pipe tap, should be delivered by Tuesday.
Performed a comprehensive design review before 3D printing pieces. (Group)
Made final CAD changes to optimize design for 3D printing (Nick)
Updated Gantt chart and week 7 progress report. (Kiernan/Bijan)
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Assembly the 3D printed motor components and mount on the provided bicycle test frame. (Group)
Create properly sized o-ring, and install.
Ideally the sponsors will finish the coil inserts this week as well - can integrate into assembly if provided
If coils arrive, will begin wiring.
Test is seal is water-tight.
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
N/A We were just heavily waiting on our sponsor last week.
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
5/4 - Zoom
Flash point of mineral oil could be a concern
look into water or other liquid. (The sponsor wishes to use mineral oil.)
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
Flash point of mineral oil
Weight of motor with liquid.
The motor only has two mounting points.
This is a constraint of the provided test frame apparatus.
The PETG might flex enough to contact the rotor.
To address this we are looking into an additional brace to support the weight.
Resources or Information Required but not Available
Talk to Steve Roberts for control information. We need to research that stuff heavily to figure out how we are going to control the different phases of the motor.
Schedule
Begin test fit assembly of motor (5/11).
Tap the coil holes for the coil inserts (5/12)
Install coils/begin wiring (5/15)
Budget (list amount spent and amount remaining)
Total Budget
$5,000
Spent
$3.00, fluid plug
$23.50, PETG
$28.00, 1-1/4 pipe tap
~$200, Assembly hardware
Remaining
$4,745.50
Progress on Report and Webpage
N/A have been focusing all efforts on design review. Finished that and started printing this weekend.