[Intro to Fab] WEEK 01 : Making a flashlight – 01

I was thinking when we use a flashlight nowadays. But I couldn’t think anything else to use without very special occasions. (Instead, a lot of people prefer to use their mobile LED flashlight.) So I want to make a flashlight for only emergency situations, (e.g  out of battery of smartphone) but it could be carried all the time because it is very lightweight and portable, so I can put this flashlight in my wallet.

That’s some keywords : portable, lightweight, DIY or disposable …



So I think whenever I roll up this flashlight card, the led turns on.


Materials that I am going to use…

  • Coin battery
  • Copper tape
  • white Led
  • paper or PET



So, I started to make a flashlight card with 3.5x2inch size.





It works like that,

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But definitely, there are some problems.

  1. It is difficult to roll-up and hold the cylindrical shape. ( looking for different shapes for turning on.)
  2. The copper tape and led had a bad connection.
  3. Paper is too weak for turning on several times.

I thought different shapes of the flashlight cards…

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So I started to make again! And I decided to make a kind of the box shape (like above 1st and 2nd pictures) because it can be folded and opened easily.

flashlightcardSo I tried to illustrate how it would be like and measure the dimension to be card size.

I also used same materials that I used before for previous prototyping. But I want to turn on the LED light when it just slides up right to left. And it was created based on the ideas of how pop-up card work. (But I have to push the center of the card a little bit… because the pop-up card structure is not good. )




Folding & Unfolding

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I can put my flash light in my wallet! I am so happy! 😀

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  1. Pingback: Intro to Fab – Keunjung Bae' blog

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