Gray Hoverman UHF antenna

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With the impending digital switchover, many of you will find yourselves not only in need of a new converter box, but an antenna as well. Just like everything else, there are plans out there on how to build your own. [William] has gone through the effort of documenting his design and build of a very nicely made version. He used PVC for the frame and a wire mesh or chicken wire reflector. Good job [William]

Plexi cliffhanger for trackmate

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If you’ve ever wanted to play with tangible tracking systems quick and cheap, you might be interested in this super quick tracking surface for trackmate. Trackmate is open source software for physical object tracking. Making a surface for it isn’t that hard in the first place but this one is probably the easiest.  All you really need is some Plexiglas, some c-clamps and a web cam. The whole thing packs into a backpack or over the shoulder bag. This would be perfect for live performances.

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