Jimmy Jeong: Create and Improve

Create prototypes based on the chosen design.

After creating a representative model of the rollable table using simple materials during the Develop and Plan stage, I moved onto the second prototype.

My second prototype involved a little more complex materials and methods to build the rollable table. Instead of physically cutting out cardboards (which can have rough edges and imprecise measurements), I used the laser cutter to make the design of the table more clear and neat.

Below are some major changes between the Develop and Plan stage Rollable Table and Create and Improve stage Rollable Table.

Types of Changes Develop and Plan Rollable Table Create and Improve Rollable Table (prototype)
1. Measurements -Involved irregular measurements in some parts of the table

-Consisted of different types of cardboards (can disturb the shape of the table)

-Used the laser cutter with accurate measurements (adobe illustrator requires correct measurements)

-Same materials were used (same cardboard in cutting)

 

2. Rollable Part/Section -Used straws, papers, and glue guns (does not have enough flexibility to roll)

(See bottom of this table for pic**)

-Folded cardboard, hard paper, and small robotics wheels were used (builds smoother rolls)

(See bottom of this table for pic**)

3. Bottom Surface -Used a simple cardboard for the bottom section (table does not stand well once the rollable section is attached) -Used a stronger connecting method (the cardboards were connected through fit and slide method)

See bottom of this table for pic**:

Since the rollable part/section is the most important aspect for this product, the pictures below show a more in depth explanation.

In the Develop and Plan Rollable Table, I just used paper and straws which did not necessarily work all the time. It was hard to roll due to its lack of flexibility.

However, in the Create and Improve Rollable Table (prototype), I went through different websites to find inspirations that can help me find a way to roll more easily. Consequently, I was inspired by the tanks’ mechanics of wheels. Tanks’ wheels are in the format of rolling the wheels and adding a layer of material around it.

I liked this idea of how it rolls, which made me to visualize how I would make a rolling section just like that. I found piles of robotics wheels in the design lab and I decided to make use them. I connected two wheels at a time with a strong piece of thin wire. I made 10 pieces of those.

Next, I found two materials that can cover around the wheels. I decided to use a folded cardboard and a hard paper. I tested out both materials to go around the wheels and felt how rollable the two materials were.

                           

Below are two videos of how rollable each of them were.

IMG_3957 (video of folded cardboard material)

IMG_3941 (video of hard paper material)

As we can see in the video, I thought that both materials were not effective for making the wheels roll. To reflect, I need a better material that perfectly goes along with the robotics wheels so that it functions easily to roll.

My Create and Improve Rollable Table (prototype) looks like this as a whole:

 

Test your design with your chosen audience. Use data to guide future changes.

I received feedbacks/advices from peers in our assigned group and teachers in the fab lab. There were two main things pointed out for improvement.

  1. I needed to figure out another way to make the rollable section/part to function well. The rollable section was not rolling and needed some physical adjustments in order to have it actually roll.
  2. I needed a stronger base of the table to let it stand itself. The bottom part of the table that stabilized the whole structure was weak, so often times it was unable to stand.

I decided to test out with different materials and brainstormed some ideas to let the rollable section roll. One of the fab lab teachers recommended me to put in distances between each robotics wheel (a little different from the tank wheels).

Based on the feedback, I made some changes to my design. I found techniques to make things roll. Out of 5 methods, I chose the middle wheel method. Below is a picture of what the method looks like.

I found different shapes of robotics wheels in the design lab and applied it to the method.

I inserted two small wheels in the middle between the two big wheels, because when the cardboard that is covering the outside rolls one time, the small wheel has a space where it will eventually fall out. This new way rolled much better than the previous two, however, each time I rolled it, the cardboard’s length kept on increasing. The cardboard was constantly stretching which eventually made a bigger area inside. This was a problem that I noted so that I can improve on my final design.

I chose the last method to further expand and use it later on.

 

Create a high quality original product that is visually appealing and functions well.

For my final design, I used the laser cutter to cut my table section. The edges looked more smoother and I thought that the table looked more neat. For all my designs, I used a fitting method for every piece. The perimeters of the pieces were all shaped like a lego piece so that it will attach better with other pieces. Below is a picture.

For my rollable section, I expanded on my final design. I got some recommendations on having the rollable section be more fit into the bottom of the table section. I used small needles that were usually used inside a sewing machine. The needles helped me to balance my rollable section without falling down.

Below is a picture of my final product of the ‘Rollable Table’.

Below is a presentation poster that shows the whole features and details of the final product!

To reflect, I think that at the very start of the project, I should have found out more inspirations and techniques as to how the rollable section would work. It took me too much time to just work on the rollable section, rather than finalizing my product with the highest quality. If I worked on this type of project another time, I would carefully think about the specific processes and methods I should use to create the best design.

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