During the Fall 2021 Semester, my mechanical design course (MEEN 210) was given a semester long group project with the prompt create a toy for the elderly.
Our group decided to focus on senior citizens suffering from early-onset Alzheimer's disease. Often times, these patients will sense a loss in finger dexterity and ability to move these extremities.
Design Requirements
- Must brainstorm, design, and build prototype within a 9 week period.
- Include at least four non-trivial parts in assembly
- Include at least one 3D printed part
- Incorporate at least two moving parts
- Be prototyped at the scale at which it is intended for use
- Use no more than 250g of filament for 3D printing
Step 1: Brainstorming
Like any engineering project, our team of 4 started with brainstorming potential solutions for the problem we had developed.
The process was mostly asking smaller, more detailed, questions to each other and bouncing ideas around. We created a concept map to sort through the ideas we had come up with.
Although, it's important for everyones ideas to be heard and written down, noting them down without biases is more critical.
Step 2: Draft Design
The next step was to conceptualize the ideas that we had come up with. This involved 1 and 2-point perspective drawings, side views, and dimensions.
It is important to learn this concept because it is the cheapest and easiest method of visualizing and communicating an idea to team members.
Step 3: CAD
Communication is key for this step as everybody on the team was working on different parts that would eventually be assembled together. Specifically, communicating design choices such as dimensions and tolerances.
Step 3: Prototyping/3D Printing
The final phase of this project was to prototype a working model of the toy.
I led and managed the manufacturing stage of this project. It involved a lot of planning time during exam season. I worked independently in Texas A&M's Engineering Design Center while learning different woodworking and other prototyping tools.
Slicing and printing parts of our project were also new to me.