Showing posts with label Design & Engineering. Show all posts
Showing posts with label Design & Engineering. Show all posts

Thursday, November 14, 2019

No way! Did someone say heated bike wheels?

For the last unit of Design and Engineering, we decided to focus on the power of wheels and pulleys. We took a deeper look into how wheels can change the way transportation works around the world, and how wheels can lead to future designs and models. We looked into bikes and the parts that make up a bike. To get a closer look we visited Working Bikes on the southwest side of Chicago. We were able to disassemble some bikes that would later be sent to Jordan! This goes to show how important bikes are not only in cities in the states, but around the world. We also visited Earth Riders which was a small bike shop on the north side of Chicago where we got to try out some e-bikes and see how those worked. For our AP, we were asked to look into a persona of someone who had to ride their bikes to school and get a better idea of their commute. My partner and I got Karen who lives in Banff, Canada. From there we were able to assemble a bike for them and include parts of the bike that could be used to their benefit. Read more of my blogpost to learn about the ending result of our bike design and model!


Persona:

Karen
Age: 14
Distance from school: 3 miles
Situation: Banff is a beautiful place but Karen has to bike along large winding roads to get to school, meaning they have to watch out for cars and trucks speeding by. Additionally, it gets very cold and snowy or icy during the winter months, leading to a dangerous ride, especially when carrying their school books. Luckily they can keep their bike inside, but space is very limited in their garage.

Need

As you can see from our persona description, Karen's route isn't the fastest or the most efficient. We as designer's want to make sure that our designs are not only efficient, but work to make Karen's ride safer. For that reason, when we started the sketching process, we made sure to embolden those struggles they face on a daily basis. Banff's climate is pretty snowy and icy, so we can only imagine Karen going through those windy roads. Also, storing the bike is a huge thing for a biker, especially a child. We wanted our design to include a compact way for Karen to store their bike almost anywhere, and not just in their garage!

Benefit

We thought about ways that can prevent Karen's bike from slipping on the icy roads, and so we thought, how about heated wheels? Essentially, these wheels would be heated as Karen bikes around transferring kinetic energy to chemical energy to heat up the path ahead of them. As Karen cycles through, the ice or snow would melt, preventing Karen's bike from slipping and possibly harming them. My partner and I grew up in Chicago, a city where it could get pretty cold, icy, and snowy. We also know that not only are the streets bad, but they are also crowded with buses, trucks, cars, etc. We don't want a fourteen year old child to ever get harmed on their way to school, especially when they are riding a bike. We decided to protect Karen, if they ever do experience a bike crash, by including a "trailer" design for their upper body. The trailer would be covering them from the snow and protect them with airbags included on the sides are rear of the bike incase of an accident. Now many people do say that airbags are dangerous and could possibly harm the person rather than protecting them, but we'd rather have airbags and possibly end up saving someone's life than harming it. Lastly, we have made the bike collapsable by including clips on the bike where Karen can easily snap them and put the parts of the bike inside of the trailer frame not only for compactness, but for convenience as well!

Reason to believe

Throughout this unit we truly were able to get a better understanding of not only the anatomy of bikes, but why benefits are so beneficial. We are aware that around the world, not everyone has access to a car. We are also aware that the burning of these fossil fuels are having a bad effect on our environment, and the risk that we are putting our climate through when riding in a car, bus, or truck. We need to make bikes more convenient and in order for that to happen, we need to change the way these bikes are built. We as designers and engineers need make sure that the bikes that people are using are accommodating people's needs. By taking a look at Karen's struggles, we were able to identify the main problems and curate something that can change their future of biking. We need to make that change for each person in this world in order to lead our planet to a better, safer future!

Conclusion

In conclusion, this action project reflected what the possibilities of bikes can lead to. Biking can make a global impact that can put people in need in the position of a better future. By not only designing this bike, but actually constructing it, it got me thinking more about what engineers should do to make bikes more efficient. In order to change the way that people think about public transportation, engineers need to make their bike designs more convenient for everyone. There is a way to change people's mindsets about changing from cars to bikes, but it's all about accommodation!

Wednesday, October 2, 2019

Transform Your Ordinary Transfer Shovel to a "Transformer" Shovel Today!

In my first STEAM course of the junior year, Design & Engineering, we discussed what tools are. We learned about the meaning of tools, different simple machines, and how they may be beneficial in our everyday lives. We started the term by going out to our school garden and picking up trash using only our hands, and also planted some plants. We calculated the amounts of plants that we planted in however many minutes we were out there just to get a rough estimate. The following week we did the exact same tasks, but this time we used gardening tools like hand cultivators, shovels, etc. We also calculated the amount of time we were out there planting and how many plants we planted. This activity showed us just how easy it is to use tools and how quick they can get the job done. We discussed different simple machines that we see in our everyday lives including levers, wedges, screws, and inclined planes. We also learned about the Pythagorean Theorem, Soh-Cah-Toa (trigonometry), ratios, and vectors. We also thought about how empathy can be a part of the design process when trying to sell your item. We thought about how not all tools and objects that we buy can be made for everyone. There are people in this world who are disabled and aren't able to use these items like everyone else would. This information would help us with our action projects that were coming up. We had the chance to visit Home Depot near our school and participated in a workshop led by an employee who taught us about different tools used for gardening, and we were given partners to work with for our AP's. While at Home Depot, my partner and I had to choose a gardening tool that we would be able to redesign for an elderly person. Prior to the choice of our tool, we were also asked to interview with a gardener. I interviewed my grandmother and throughout the process I noticed that she was finding it quite difficult to use the gardening tools due to her knee problems. My partner and I decided to take this problem into our own hands and redesign a transfer shovel that we had seen during our FE to Home Depot. Learn more about our redesign down below!

Defense:
We have created an ergonomic “d-handle” transfer shovel that makes transferring soil and gravel easier without having to use so much force on your back or knees. The shovel takes out soil and gravel and makes transferring easier and speeds up the gardening process. Our shovel is contoured to your body and has an extension that can extend up to 70 inches. You can pull the handle bar in order to extend. Get a better grip by putting your handle on the “d-handle” that has been contoured to fit your hand comfortably and hold onto the lower grip just under the extension to take out that soil. We know that two of the most common problems that elderly people face day to day is dealing with back pain and knee pain. We want to make gardening still an enjoyable activity rather than a task. We have made sure to think about key elements that go into gardening without taking the fun away, but including safer elements to our design. We would say that our tool works like a lever. We usually see in shovels that in the input force is at the top which is where your hands are pushing the shovel into the soil. In our case, the fulcrum is in the middle (extra grip stabilizer) allowing there to be a balance once you take the soil out which is exerting force out of the ground. There’s an up and down motion and the fulcrum in the middle which makes it a 1st class lever.

What are the parts?

Extendable Length Optimizer: Works like a telescope just pull out each handlebar that extends 14 inches for each handlebar. In general, the ergonomic “d-handle” transfer shovel can extend up to 70 inches (5’10)

Bendable Handshape Grip: Fits your hand perfectly and comfortably.

Body: Contoured (wavy) body in order to make your job easier and work with your body shape rather than having a stiff & hard handle bar which puts more pressure on your back.

Extra Grip: Helps you stabilize yourself while transferring gravel or soil.

Latch/ Button: Allows you to detach the blade from the body making it easier to clean.

Blade: Aluminium based making the tool lighter overall, and we added some sharper edges at the end but not too sharp to be dangerous for anyone who uses this transfer shovel!

Here are FOUR reasons why our tool is better than the competition:
Ergonomic body: Fitting your body shape and making it easier to work with because the extra grip is at the right spot of the shovel providing maximum comfort on your back, less force is made on your back, and you won’t have to bend down as low which protects your knees from any pain.

Handle grips: Providing more comfort throughout the tool and using two hands in different areas gives not only better grip but more balance causing you not to fall.

Extendable Length Optimizer: Are you tired of having to put force on your back while gardening? Well, we have made our tool extendable up to 70 inches (5’10) which is the average height making it easier and not cause you to slouch down as much. Do not worry, the extension shafts in our shovel does not affect the overall weight of the shaft because although we use wood, the wood that is used for the shaft is thinner making the weight distribution feel lighter.

Blade: The blade can move in a 360 motion making it easier to scoop out and dump soil or gravel to your pile. Along with the 360 motion blade, it's detachable! This makes the cleaning process 10 times faster!

Purpose:
Throughout this unit, the idea of empathy kept coming up on our minds. What makes a design a design? I personally feel that a design should be well thought of before engineered. When designing a product, you should be thinking about different people in this world who all go through different situations rather than what you have experienced yourself. What makes a true design is when you think about the people that can use the design, and that's how your design can become successful. While I was watching my grandmother struggle with some of the tools that she used, I realized that many designers don't really think about their audience to whom they are designing the product for. Sure they get the idea, but do they actually test out the item before it reaches the market?

The process:
When I was talking to my partner about redesigning a tool, I made sure to discuss the issues that I had seen my grandmother go through to base our future redesign on those issues. Our issues were back and knee problems that correlate with one another when using a shovel. It's sort of like a cause and effect situation. If you bend down when taking soil out, you hurt your back. When you're bending down, you apply more force on your knees causing knee pain and damage. It's a problem that needs to get solved. While at Home Depot, we were looking at the shovels that we think can cause the worst back and knee pain. We chose not only the shortest transfer shovel, but the most uncomfortable to hold. The "Anvil D-Handle Transfer Shovel" was our competition. We worked with the shovel throughout the workshop led at Home Depot and realized that this may be one of the toughest shovels an elderly person can use. When we go back, we thought about different ways to improve the design without losing the idea of the D-handle. The D-handle was efficient when thinking about the grip in which you place your hand through. We created a rough sketch of our design the first day of designing and presented our ideas to the class. We received feedback from our classmates the second round of the design process for what we can change or what they liked about our redesign. We created a storyboard on how potential customers can use our design efficiently and effectively. Lastly, we recorded our volume and surface area of one part of our design, we included vectors of where our input and output forces can be found throughout the design, and found a relevant quote that inspired our design process. If you want to see this information, click on the slideshow down below!


Our Slideshow Presentation:

In conclusion, this AP was quite interesting to complete. This AP made me realize how important it is to think about everyone when designing a product. There are people in this world who are disabled and who aren't able to do day to day tasks. We should make products that are designed for everyone rather than products that only work for certain people. Also, you get more of an audience when you an include everyone making your design better than the competition. The next time I design a product, I will always think about empathy and pleasing my potential audience!

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