Embedded Files
11/24 Instructor Meeting
Can contact Professor Delson to distribute survey to his MAE 130A class
Future presentations:
Include slide numbers in future presentations
Have images in presentation be more relevant and specific to what we’re trying to deliver/customize images
Include a more detailed timeline
Include a gantt chart
For the final presentation, try to help the audience recall the pain from learning the subject and how our kit can help
When looking at existing models
What is the thing that’s missing from these current designs
Pros/cons
What do we want to overcome when looking at previous designs? (cost/variety of kit/etc)
Risks
Within the development timeline we could possibly tackle the wrong topics
End up with the wrong device
Many iterations
Survey design is critical
Polish
How do we make the survey taker add topics that they are struggling with that we didn’t think to include in
Timeline from last week
11/30: pick topic
11/30: start planning/research/dividing tasks
Start meetings on Thursday @12pm
Topic: Shear, loading, and bending moment
Pegboard backing
Bungee cord as pulley and tension
Supports (3d print)
Pool noodle, foam as beam or 3d print
Box/enclosure for kit
Clamp for beam
Weights to add load
Supplies to order
Pegboard (amazon or ikea)
Bungee cord
https://www.homedepot.com/p/Keeper-2-6-in-2-8-in-2-10-in-Mini-Bungee-Cords-6-Pieces-06054/203505742
2-6 in., 2-8 in., 2-10 in.Mini Bungee Cords 6-Pieces
$5.89
Foam beam
24” Foam Round Dowel (15mm or 30mm)
$3.99
Pool noodle core (6 total; 35-inch length, approximately 1.5-inch diameter)
$14.50
Foam board
Rods to be compatible with foam board
Weights
Action items by thursday
Email about design studio (Trish)
Create CAD models
Allie: beam and supports
Trish: box/peg board
Sami: clamp
Lindsey: research (learning styles, summative and performative assessment, etc)
Risk reduction
Physical mock up
“How-to-use” for model
Lab manual and solution sample
Use research to justify why this kit is effective
Future ideas
Finalize design on Thursday
Box as part of kit
Peg board to construct truss (upright or flat)
Clamp to hold beam
12/4/2020
Our Initial Thoughts/ Design
- Initial survey produced a result with most students requesting a diagram for Loading, Bending, and Shear in a beam
-From this feedback, we proceeded with the design presented on Tuesday:
The idea is to create a beam made of rubber or foam (which could show deflection easier) that has holes in order to attach different types of supports (pin, rocker, etc.) that can be taken off and rearranged for different configurations. We would build weights of different masses/sizes to load onto the beam and show bending moment due to load. Pins (seen on left-hand side of the beam) allow the beam to be inserted into a pegboard and thus converted into a cantilever beam.
-This design presents a visualization of a bending moment in a beam
An Alternative Route
-In our Tuesday meeting with Professor Qi, she suggested that we should pick 2D and 3D moment visualization as our first concept to cover
-If we wanted to showcase 2D and 3D moments in a more simplistic fashion, we have some ideas:
IDEA 1:
-These ideas show 2D and 3D moment, and are more simplistic designs that are better suited for risk reduction
Our Vision / WOW Idea: We were envisioning building (by end of next quarter) a robust and multifunctional kit that incorporates the box as a pegboard to be the mounting unit for many of our kit pieces.
-This idealized design includes many of the desirable functions discussed at the beginning of the project, including multifunctional pieces, visualization of different concepts, ability to produce different configurations / encourage student creativity, and can be easily assembled
Where We Go From Here:
-We need to determine which design to proceed with for the remainder of the quarter
-Our beam loading design is already rendered, and responds to the survey request, but could perhaps be too complex for the time allotted and is the riskiest choice
-Our more simple ideas for 2D and 3D moment are less established, but the simplicity of them reduces the risk
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