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1.1 Can make the user sit on it.
1.2 There is a place for the suitcase and in addition to have another storage space.
1.3 To have two pedals to put your foot.
1.4 The design of skateboards can be used by people with poor balance.
1.5 Easy to use
1.6 The connection of suitcase must can adjust (can accept any size suitcase)
1.7 The suitcase and skateboard can be removed.

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This time I want to design a skateboard suitcase. Nowadays, a lot of people will go a lot travel and business trip, so based on the actual needs of people nowadays, it is necessary to solve the problem that the suitcase needs to be lifted long after being filled with luggage. Travel or business trips are often very exhausting. When people are very tired, they have to drag the heavy suitcase. In order to solve the problem that the suitcase needs to be lifted after being filled with luggage, I decided to design a combination of skateboard and suitcase, skateboard luggage. I want to combine skateboarding and suitcase because it can hold a lot of things and solve the problem of baggage moving quickly under heavy conditions.

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The user and target audience of my product is those who travel and business trip frequently.

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By combining the skateboard and the suitcase, the problem of heavy suitcase can be effectively solved. And I need my skateboard to be a person who can be controlled without having to be a skateboarder. This can serve some people with poor balance. It is very difficult for people with poor balance to control the skateboard, but my skateboard suitcase can be used for everyone. This suitcase will have a place to sit, so in the tired travel and business trip, catching the flight  will not Become a very tired thing.

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My Client is my father. Because my father is a person who have business trip to all the world. He often flies to many places in a day. So I know that catching a plane is a very tiring thing, so I hope that I can design a suitcase that will make him more labor-saving, so that it can make the business trip less tired than before.

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Topic: Suitcase material selection
Question: What material can be light and can withstand a certain weight?
Possible source:  SSIS Material design teachers

Research type: Primary source

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Topic: Wheel selection
Question: The advantages and disadvantages of different wheels. So what kind of wheel is suitable for a skateboard suitcase?
Possible source:
https://chestertravels.com/types-of-luggage-wheels-which-is-best-for-you/
Research type:  Secondary  source

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Topic: Skateboard material selection
Question: What kind of material is needed to be the most suitable for making a skateboard suitcase?
Possible source:
https://ministryofwood.com/the-nitty-gritty-materials/
Research type:  Secondary  source

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This suitcase is a successful skateboard suitcase in the picture. This suitcase is a combination of a suitcase and a skateboard. I will use this idea. And the whole structure is a triangular stable structure, this structure will also be used in my design. The entire suitcase is black, and this color is also a very calm color, especially suitable for people with business trips. There is a pedal on either side of the front wheel that allows people to put their feet on top. This design is very intimate and I will use it too. But the suitcase and the skateboard of this skateboard suitcase are inseparable, which means that it would be impossible to separate them. I will change this in my design and I will be able to separate the skateboard and the suitcase. And my skateboard suitcase will work for all sizes of suitcase.

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Design goal:
This time I want to design a skateboard suitcase. Nowadays, a lot of people will go a lot travel and business trip, so based on the actual needs of people nowadays, it is necessary to solve the problem that the suitcase needs to be lifted long after being filled with luggage. Travel or business trips are often very exhausting. When people are very tired, they have to drag the heavy suitcase. In order to solve the problem that the suitcase needs to be lifted after being filled with luggage, I decided to design a combination of skateboard and luggage, skateboard luggage. I want to combine skateboarding and luggage because it can hold a lot of things and solve the problem of baggage moving quickly under heavy conditions. My product needs to be able to withstand it because my skateboard suitcase can be used as a seat and needs to hold the weight of an adult. After comparing the hard-shell suitcase and the soft-shell suitcase, I chose the hard-shell suitcase. The weight can be unimportant because it is changed into a skateboard suitcase. The hard-shell suitcase is more sturdy and durable. My product needs to be a triangular structure, which will be more stable and can withstand an adult.
Target audience/market -
The main purpose of my product is to effectively solve the problem of heavy suitcases by combining skateboards and suitcases, turning an ordinary suitcase into a place to sit, so in a tired travel and business trip, catch a plane will not become very tired. In my survey, people who are mainly on business trips will need this product. Because they travel very frequently, the suitcase is more like a necessity. And many people fly several different places in a day, so a convenient suitcase is important. I need to have a lot of storage space and can disassemble parts of my skateboard and suitcase. The storage space is because the business travel needs to go for many days, there will be a lot of things to bring. More detachable is a suitcase that can be placed in more than one size and of different sizes. Skateboards and suitcases are not a whole. If the suitcase is broken in the middle, you can find another suitcase. And I need my skateboard to be easy to operate. This can serve some people with poor balance. It's hard to control skateboarding for people with poor balance, but my skateboard suitcase can be used for everyone. My product must be shatter-resistant, because the suitcase must have frequent friction, so it must be sturdy and durable.  In aesthetics, black is more suitable , black is more calm and low-key, especially suitable for work.
Constraints / Problems -
The main limitation of this design is in terms of production. It will be very difficult to use a steel frame. And the suitcases is made of plastic, so it is difficult to do it in school to complete the production. And connecting the wheels is also a very difficult problem. Then throughout the production process, I have to make sure that all edges are smooth, so there are no security risks.
Success criteria -
The success of this product is the combination of skateboard and luggage. The success of the project will be judged from the storage function and the detachable and bearable functions. And my success will determine my success by investigating feedback from the target audience.

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2.1 3D printer

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3.1 The color matching is no more than two colors, because this product is used for business trips.
3.2 The elements of the geometric pattern are used as the main aesthetics of the shape.

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4.1 The contact area of the entire product must be smooth, can not have any sharp parts.
4.2 The paint that on product must be not poisonous for people.
4.3 The handle should be soft so that it won't hurt the hands for long periods of time.

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5.1 The product will be based on the needs and aesthetic of the target market, which is the people who will going to the business trips.

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6.1 The handle needs to be ergonomic and the entire length also needs to be ergonomic.
6.2 The connection of suitcase must can adjust (can accept any size suitcase)

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- blue foam
- sand paper
- bastard file
- smooth file
- knife

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Blue foam knife handle

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This is another type of skateboard suitcase. This contrast is compared to the suitcase of the previous picture, this suitcase has no way to bear the weight of an adult. It can be seen from the two support columns in the front, the support column is particularly thin, but for the children it is perfectly possible to sit on it. So this skateboard suitcase is different from the one above. This suitcase is mainly for parents who bring children out to travel. The child can sit on the suitcase and the adult drags the suitcase. And you can see that the cute pattern above is completely in line with the children's aesthetic. This is also a triangular stable structure that can support more weight. In my design i will use a large number of stable structures of triangles are also used.

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This is an ordinary suitcase. It is the most common suitcase on the market. This is a hard-shell suitcase that is heavy but sturdy and durable than a soft-shell suitcase. The four corners are reinforced, which has the advantage of preventing collisions from causing damage. And the wheels use wheels that change direction, so that the wheels can change direction at will. I will use this in my design. There are different handles in both places so that it is easy to lift.

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This is the third different design of the skateboard luggage. This skateboard suitcase is only able to stand on the skateboard contrast to the two skateboard suitcases above. The shape of this skateboard suitcase is a polygonal shape, which is more geometric and has a concave and convex design, so that it can store more space. The geometric design is more modern and technological, I especially like the design of geometric figures, so I will use it in my design.

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This ordinary suitcase attracts me is the space in front of the storage. This space can store your computer or some small personal belongings. The presence of this space makes it easier to get small carry-on items without opening the entire suitcase. This will also exist in my design.

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I have changed a lot during the process of making this product. Originally I was going to use a 3D printer to make a model, but there were too many people using 3D printers, so I changed to use blue foam to do my model. But the disadvantage of using blue foam is that it is difficult to operate. Like my design, there is a tilting storage space, which can't be done, so I changed my design. The design of the inclined storage space was eliminated.

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There are many things that can be improved here. First of all, it must be made according to the original design. Because of the difficulty of the production, I removed the storage space. It would be much better if you made it according to the original design drawings. Because I am only making a model this time, it would be much better to make a real thing according to the scale of this model. After all, the model is just a model, and the real thing can be truly used in daily life to bring convenience to people who are on business trips.

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moving test
Because I am design a skateboard suitcase, my test content is whether this model can be moved. We can see from the photo that my model is made with blue foam, because it is smooth enough so it is movable.

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material test

This is a material test that tests how hard the material is. The test content is that I gently break off with hands to see if it will be easy to breakdown or not. We can see from the photo that this material is very easy to breakdown.

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I chose this design. This design has a more complete function from the functional comparison of other designs, and it also better meets my functional requirements. First of all, this design has a handle design, the handle design can better control the direction, which means that the design can make the whole product easier to control. The design of the four wheels will not require the consideration of balance capabilities. The four wheels will become absolutely stable, so even people with poor balance can easily control them. And there is a seat in front of the suitcase that allows people to sit on it, which satisfies the need for a seat in my function. A sloping storage space below the seat. Some bags can be placed in that storage space. There is a pedal design on the front that allows the user's foot to be placed on top.

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3 lessons cuts all the parts needed.
1 lesson with a smooth file to smooth the surface
1 lesson using sanding paper to polish the surface
2 lessons assembled together

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1.1 Can make the user sit on it. ✅I have it.
1.2 There is a place for the suitcase and in addition to have another storage space. ❌Because I changed, I didn't use 3D printer to do, i switch to blue foam, but because of the difficulty making of using blue foam, I didn't succeed to making the storage space.
1.3 To have two pedals to put your foot. ✅
1.4 The design of skateboards can be used by people with poor balance. ✅
1.5 Easy to use ✅
1.6 The connection of suitcase must can adjust (can accept any size suitcase) ✅
1.7 The suitcase and skateboard can be removed. ✅
2.1 3D printer ❌I change to use blue foam.
3.1 The color matching is no more than two colors, because this product is used for business trips. ✅
3.2 The elements of the geometric pattern are used as the main aesthetics of the shape. ✅
4.1 The contact area of the entire product must be smooth, can not have any sharp parts.  ✅
4.2 The paint that on product must be not poisonous for people. ❌ Don't have paint
4.3 The handle should be soft so that it won't hurt the hands for long periods of time. ✅
5.1 The product will be based on the needs and aesthetic of the target market, which is the people who will going to the business trips.  ✅
6.1 The handle needs to be ergonomic and the entire length also needs to be ergonomic. ✅（If the model is scaled up it will be ergonomic.
6.2 The connection of suitcase must can adjust (can accept any size suitcase)✅

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My customer's opinion of my product is that the idea is very good, but because the model is not real, it is difficult to assess its true practicality. But if I follow my design, my idea is very good and it should be practical. And I have a good point that the skateboard and the suitcase are separated, so you can change the suitcase at any time and you can take care of the different sizes of the suitcase. And that storage space in my design is a very good design point. When you go out, you will definitely bring a carry-on bag with you. This design is very intimate. This product can solve the problem I mentioned earlier, that is combine skateboarding and suitcase because it can hold a lot of things and solve the problem of baggage moving quickly under heavy conditions. This suitcase will have a place to sit, so in the tired travel and business trip, catching the flight  will not Become a very tired thing.

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Question: How to use sketchup to make a tire.
Possible source:  SSIS Material design teachers

Research type: Primary source

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Topic: Suitcase material selection
Question: Hard-shell suitcase or soft-shell suitcase?
https://www.knaviation.net/hard-shell-vs-soft-shell-luggage