Why We Did This Project:
In our community, there is a woman that has difficulty with speed eating. Speed eating is dangerous as there is a significant risk for aspiration. To solve the issue, the client has tried to portion the client’s food and use a spoon with a smaller head size. The product that she wanted our group to create must be durable, transportable, washable, and discrete (click HERE for a more detailed description of our requirements). Currently, there are many products that attempt to solve the issue with speed eating including HAPIFork, 10s fork, Bite Counter, and SmartPlate (click HERE for a more detailed description of the current products on the market). However, these devices are expensive and most only provide feedback to the user on their eating pace to help self-monitor. The goal of our project was to create a device to directly help slow the client’s eating pace.
Our group decided to make a modified bowl that has inserted ridging inside of it in order to aid in slowing the user’s eating. When comparing our product to a common bowl, our bowl significantly aids in slowing the user’s eating down. If you would like to see more specifics on our testing please click HERE. The video above shows an overview of the final products. As explained in the video, the client has her food portioned into four ounces. We created a dinner bowl with three portions containing spaces for four ounces of food. We also created a smaller bowl for dessert containing one portion with room for four ounces of food. If you would like some more information on the details of the two bowls, tips and suggested techniques to use while utilizing the bowl, or our general progress featuring prototypes of the design, please watch our video. Our decision matrix ranking our current design and previous prototypes can be found HERE.
Step 1: Gathering Materials and Tools
- Polyethylene Terephthalate Glycol (PETG)
- Quantity: 1 filament roll
- Cost: Provided by the school; usually included in the fee for using a 3D printer
- Store: School; public 3D printers will generally have the PETG material for you to use
- Epoxy Resin
- Quantity: 32 oz bottle
- Cost: $59
- Store: Amazon
- 3D printer that can print PETG
- Art brush
- Mixing container
Step 2: Build
- Once you have printed your bowl, you're ready for the finishing! Using the epoxy resin, you will be able to finish your product to give it a professional look. To give it a nice coating, paint one layer very thickly. The coating should be approximately 1-1.5 cm thick, even pushing it to 2 cm is fine. You should paint it like painting on an easel or a ceramic, with nice, even brush strokes. The resin also settles down into a nice, even coating if you give it time, so allows the resin to rest after painting it to get that smooth finish.
- Coat the bowl in two separate days. The first day, you should coat the bottom of the bowl, and the second day you should spend coating the side and interior of the bowl
- Wait for it to dry! You should wait approximately 72 hours for the resin to dry and cure to give it a hard, glossy finish. Your product is now ready!
Step 3: Improvements and Extension Projects
- Trying to utilize other materials through methods of rotocasting and ceramics to give the bowl a more appealing aesthetic.
- Testing to determine the optimal height ratio of the inner ridges to the out ridges to prevent spillage over the outside edges.
- Having the inner ridges be detached from the bowl so the user can insert the ridges into any bowl. This allows for more customizability to the individual and their lifestyle.
Step 4: Resources and References
Products on the Market
10s fork: "The 10s Fork measures how fast you eat and subtly guides you into a perfect rhythm, improving your overall health and well-being."
Bite Counter: The Bite Counter is a comfortable watch that tracks wrist motion to count bites and estimate calories. It provides real-time feedback on the amount consumed and stores long-term log. It also includes a pedometer for daily step counting.
HAPI fork: "The HAPIfork, powered by Slow Control, is an electronic fork that helps you monitor and track your eating habits. It also alerts you with the help of indicator lights and gentle vibrations when you are eating too fast. Every time you bring food from your plate to your mouth with your fork, this action is called: a "fork serving"."
Smart Plate: "Put your dinner on a new Wi-Fi connected SmartPlate, and it will tell you not only what you’re eating, how many calories are involved, which nutrients, and even whether you’re chewing too fast. All the data feeds into an app that tracks your nutrition over time."
Research on Speed Eating
Aspiration: What does it mean? Plus causes and prevention. Retrieved from https://www.healthline.com/health/aspiration
“How to” Tips on Food Preparation for Ground & Pureed Diets. Retrieved from https://www.healthline.com/health/aspiration