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  1. sixpak

    Ring Light LEDs ???

    I would like to build a ring light for my mill, but I am not sure what type of LEDs to use. I have attached a concept model for discussion. The model shows 5mm LEDs, but I am open to other ideas. Whatever I use should be bright, dimmable and able to hold up in water/coolant. The ID of the light...
  2. sixpak

    Looking for a Micro Transducer

    I am looking for a micro transducer of some sort that is capable of sending at least 13 discrete or distinct signals through a thin, non-metallic material such as plastic, wood or fiberglass whereas the receiving unit must be able to decode or decipher each signal. The transducer can use RF...
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