Where to buy pre-built projectors: You can buy these projectors pre-built. Go to your favorite search engine and search for "autograph projector" or "drawing" , "tracer" or "opaque projector". You'll find them on quite a few different websites, ranging in price from $30 to $400. You can also try looking at your local hobby, craft or art supply store.
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Posted by jai on Sunday, November 05, 2006