Living in a house or apartment with spotty wi-fi can be maddening. You’re in the middle of work or watching a video when suddenly the signal fades away, leaving you up a creek.

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But wait! There may be an answer to your problem. In the past, people have claimed that putting an aluminum can near a wireless router helps their wi-fi strength, but this new internet hack looks even more promising.

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Researchers from Dartmouth College recently presented a new 3-D printed device at a conference in the Netherlands that they claim will wipe away all our wi-fi blues.

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The team created a reflector that can direct wireless signals to where users need them the most. The basic shape is built using a 3-D printer. Then, the device needs to be wrapped in aluminum foil and placed behind the wireless router. Using a program called WiPrint, a special algorithm designs the reflectors for maximum wi-fi coverage depending on the space.

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Making this customized plastic reflector costs about $35, but you also obviously need to have access to a 3-D printer. Hopefully, this new product will help a lot of people get better wi-fi coverage in their houses, apartments, and businesses. Nice work team!

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h/t: Mental Floss