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Blink Box |
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This project is probably more about experimenting with enclosure fabrication that about what the device does. I used a Roland CNC milling machine to fabricate the case out of 1/4” and 1/8” acrylic scraps I get at a local plastics supply house. The milled plastic pieces are held together with brass nuts and screws. The milling machine does a beautiful job of cutting the shapes and they fit together perfectly. The cutting is so precise that the power switch is just held in by friction. Now that I have the files that milled this case it will be much easier to make other cases for other devices. I must say, however, that the milling machine takes an extremely long time to cut the pieces. The electronic portion of the device primarily consists of a do-it-yourself Arduino driving 10 LEDs. The LEDs change flashing patters whenever the luminosity level dips below threshold. This lets you change patterns by passing your hand over the device. It also contains a cell phone vibrator to let you know it’s turned on and to give it an extra sense of presence when it’s in your hand. Power comes from a 900mAh rechargeable Lithium Polymer battery along with a 5V DC step-up VPack PCB. I can recharge the battery while it’s inside the enclosure by plugging a LiPoly Fast Charger in by way of a polarized connector on the outside of the case. A commonly available Radio Shack circuit board fits into recesses inside two of the plastic sides of the case. Except for the circuit board, most of the other electronic components came from Spark Fun. Ciick Here for more information on the Enigma Gadget cases.
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