[Week 6] Motor

1. Inspiration 





I make a cat toy controlled by a joystick and buttons as a final work.  To attract a cat’s attention, I thought about a feather toy and decided to make this with a motor.

2. Raw materials


  • materials: knitting wool, DC motor and mount, a feather cat toy
  • tools: screw, drill, driver

3. Process

1)Making a tessle

I used knitting wools to make a tessle. Forst, I made a ball of strings, then tied the center of a ball. then cut the each side of strings and adjusted the length and trimmed the shape.

2)Making holes and Mounting a DC motor
I decided to mount the motor the top the big hole for a usb cable to use it for wires as well. The holes on a mount for a DC motor was pretty small and there was rare space to screw them all in four holes. So, I just made one hole each with a hand drill. The next step was a problem. I was worried to make cracks and broke the box, but there was other option to mount the motor except using a screw. If I use a glue or something, it might work I guess, but I did not want to do it with a glue. So… carefully screwed with a driver, and yes… the box had a little damages inside. But it worked.


3)Attaching the tessle

The final step was attaching the tessle and connected wired on my breadboard and arduino.

4. Final work


5. Conclusion

I made a mistake to decide the place of the motor. It should go upper of the cable hole. There were too close, the bottom of the motor slightly hided the hole and a cable could not go throw the hole. Fortunately, there was another hole on the cover to let people open it easily, I used it for a cable and the cover could be closed. I learned how much exact measuring  was important to avoid a mistake again.


[Week 5] Two materials

1. Inspiration 

I searched the Junk shop to find materials and got an empty plastic box. I wanted to make something with this using this transparency character. Then I come up with idea to express the tip of an iceberg representing the truth behind what a government or media hide to people.

2. Raw materials

  • materials: plastic box, wires
  • tools: Lego, drill, driver


3. Process

1) Making holes

kakaotalk_photo_2016-12-08-00-38-11_51 That was the hardest part of this project. At the first time, I used a Lego block with holes to make a straight line. For making it, some sharp tool was needed and I used a small driver to make it.

However, I realized it won’t be easy to make a ton of holes and looked not clean. So I changed to a hand drill and the result was much better.

kakaotalk_photo_2016-12-08-00-38-06_89 kakaotalk_photo_2016-12-08-00-38-08_65                                                                      (Left: driver / Right: Hand drill)



2) Drawing with wires

I wanted to deliver strong feeling to people, so chose the red color wires. Sawing with thick wires was not that easy and took much time as making holes on the surface. The box was not deep so I was screeched on my right hand which should be inside the box. Moreover, making a word readable was also difficult part. If I try this method later again, holes should be dense.



4. Final work

The truth is behind what we see. Just like the bit of an iceberg.





5. Conclusion

During the sawing(?), I thought about a lot and could developed this idea for the future work. Next time, I will do this work with acrylic board and put some messages on it, and attached LEDs on the back. I will present this work later on my blog as well.







1. Inspiration 

I wanted to make a small box to put an Arduino with a hole for a USB.

2. Raw materials

I tried to found some materials in the junk shop. Then I found a wooden box and a box cover! It was small and compact, so perfect for the Arduino.  Even there was a hole in the box for a Arduino USB! However, they are not in a set, so the cover could not be closed.

kakaotalk_photo_2016-11-30-23-08-39_56 kakaotalk_photo_2016-11-30-23-08-41_3

3. Process

Thickness of the box was enough to being grind for fitting into the cover. I carefully did each of four faces and the top to remove the bumps.

kakaotalk_photo_2016-11-30-23-08-34_43 After doing that, it was fitted perfectly.

kakaotalk_photo_2016-11-30-23-08-35_81Then, I put holes in the cover for push buttons and LEDs. I forgot to take pics of this stage..

4. Final work

kakaotalk_photo_2016-11-30-23-44-55_0 kakaotalk_photo_2016-11-30-23-44-53_91

5. Conclusion

The Junk Shop is amazing!!! I will make more enclosures later.


[Week3] Chandelier (lazer cutter)

1. Inspiration

Me and my friends use birthday candles to make a birthday more special. But it needs extra coast, and disposable. So I thought birthday celebrating decoration which can be used every year and for everyone.



2. Sketch 

I wanted to make a three layer’s birthday cake shape and also looked like a  chandelier.




3. Raw materials 

I founded wood board in the Junk shop.

  • materials: wood board, thin wire, glue gun, wood glue
  • tools: lazer cutter


4. Process 

1) Make illustrator file


2) Etching

2) Cutting


I set the printer setting as the guide but it was not cut, so I had to do twice. After two attempts, I did successfully cut at once from the third time.

3) Glue

The place where to glue is so narrow, it was hard to stick together with a wood glue. But a glue gun worked.



4) Connect three layers

That was the hardest part of this project. I tried to a thread but it was super hard to make a balance. Maybe I make holes in different directions to hold them tightly. I changed to use a thin wire and it was better than before..but still difficult to keep the center of gravity.



5. Final work 



6. Conclusion

To lazer cutter, experiment of printing statement was really important because it is affected a lot to which material I use.



  • Subject: Making five objects with same size and shape


1. Inspiration

It is so bothering to find a a hair band in a room. It is so wired, but it is so easy to miss them even in my tiny room and I have to get a new one. To solve my inconvenient situation, I decided to make a hair band hanger which I could stand it on a dressing table. 

2. Sketch  

I decided to make a tree shaped hanger with different hanger length and each arm slops away to avoid hairbands dropped.








3. Raw materials 

  • Materials: wood sticks from Home Depot and wood board from the junk shop. (I forgot to take a pic of the raw wood board)
  • Tools: drill, wood glue, tape, sanding machine, cutting machine




4. Process 

1) Cutting wood sticks 

I needed five bodies with the thickness wood sticks and four different length of arms for each five hangers. So, the total arms would be twenty.

To make the same length, set width of a cutting machine should be done first.

img_2124 img_2126



2) Making holes with a drill 

This step was the hardest one and took most of my time. To make a hole in the same place of the five bodies, I marked the distance on the clamp. It was not easy to make holes on the round surface, and I made many mistakes.

img_2129 img_2128


  • Each body has to have four holes for arms and They should be apart with 90 degrees. But for the first pancake, I forgot this and too much focused on drilling, I made four holes in a same row. Failed!
  • To put an arm into a hole, the diameter of a hole would be same with an arm of slightly bigger. It meant that I needed to use a little bit big bit to make a hole. Actually it was not a big size at all, but compared to the body size, it was pretty big size. Because of this reason when I tried with a proper size of bit, the drill was slipped and move to the different position. So I used three different size of bits, from the small size to the actual size. There was the second mistake I made. I used the drill with a different direction! That was why I had to flexed to my wrist and felt pain. After I did with the right direction, I did not even need to use from the small size of bit.

3) Grind the arms 

To put them into holes easily, I slightly made the edge of the sticks sharpen. The grinding of the opposite part was decoration.


4) Making stands 

To hole hangers, five stands are also needed. Luckily I found yellow painted wood plate in the junk shop, and cut and ground them. Then made  five holes with the drill.


5) Assembling

I put each of part together with a wood glue and slightly made an angle with arms.




5. Final work 



6. Conclusion

It was so true that it will take 3.14 times than my expectation. I did not expect that just making same holes took this much and painful. I totally understand how much the setting is important to save time and work it done efficiently.

Another lesson I learned from this work was “Do not touch a drill bit which is just used!”. When I plugged out a drill bit and touched it, I got burned on my fingers. I did not know that it is so hot. Always be careful for fabrication even with a used drill bit.






[week1] flashlight

1. Inspiration

Luckily I had a flashlight, so disassembled it to see how the flashlight works. When I pushed the button, it pressed the metal band which connect the battery and the LED to the current could flow.

2. Raw materials 

I checked the junk shop to get materials and found this wood stamps. They were small, easy to bring, and made with wood, so I thought it was good for a body of a flashlight and good for practicing to use a drill. I got a LED and a pushbutton at the pcomp shop and bought a 3V battery at Lighting Plus.

– materials: wood stamp, sponge, cardboard, color blocks

– Tools: drill, drill press, glue

3. Sketch 

From drawing a sketch, I figured out I need three holes in the wood body. When I drew how to turn the light on, it was so simple, but when I thought about to put it inside of the body, it was a little bit confusing. 

4. Process 

1) Making three holes

One is for a LED, one is for the button and one is for the battery. Three of all should be connected for wires.  

Then, run into the fail! 

I did with a hand drill with different size of bits. But when I made a big hole, it was broken. I guess one reason was the wood was too small, and the other reason was the wrong way to use a hand drill. 

So, I tried again with the drill press and it was more clear way to make a big hole. 

2) Soldering & Assembling 

I soldered between the LED, the button and wires. Some part should be done after assembling.  

3) Design 

I filled the hole with a sponge and stuccoed a cardboard with a glue to make the surface flat. Then decorate it with a plastic little tiles. I used red one to represent the color of the LED. 

4. Final work 


5. Conclusion 

I wonder that the way of using a red and yellow drill is different. I feel more comfortable with using a yellow one, and a red drill seems a little bit different to be used. I also have to learn how to use a drill press again. After pressing down the handle I am not sure that I have to press the off button or press up. I did the both way, but either one seemed like being dangerous. 

The last one was about the soldering. I did it to the battery, but the surface was a little but burned, so I had to stop and used a tape.