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  1. Brad Hays

    Diagnosing my failed CNC controller

    I have a CNC router controller from a company called Buildbotics, and I’d like to investigate some into why it just died on me. To replace it will cost $500, so I thought I’d take a shot at diagnosing what’s going on. It’s been working fine for a while, secure and in place. And for no reason...
  2. Brad Hays

    How to blow an Aztec Death Whistle

    I'm trying to set up a deterrent system and after a lot of thought I think I've figured out how to do this. This situation is fairly unique so I'm afraid suggestions other than the path I'm pursuing probably wouldn't apply. So I'd like to keep the discussion on the right path if at all...
  3. Brad Hays

    Need parts suggestions for a computer fan type air circ system

    I'm designing a small air circulation system (not computer related) where I need to use two computer type fans and some type of fan speed controller, and I need some advice on what parts to get. Requirements for the fan.. - 120 or 140 mm - as quiet as possible - moves as much...
  4. Brad Hays

    Need a recommendation for a volume control knob please

    Complete novice here, and I'm trying to figure out what little volume control knob I need to splice into this wire here... ...in order to control the volume of the speaker on this 2 C cell powered alarm device. This is part of a 2 unit warning system where one box is the motion sensor, and...
  5. Brad Hays

    Need help designing / understanding this 'circuit'

    I'm a novice builder of whatever I can imagine with not a lot of formal training in electronics, but I follow directions well so I imagine I have a good chance of pulling this off with the right advice. Here's the deal... Keeping it simple, I need to turn on electricity to a 1500 watt device...
  6. Brad Hays

    Novice needs help farting around...

    Long story short I'm building a simple wire, light and buzzer circuit where on one end when an action is taken and two wires are made to touch I would like to be alerted on the other end of the circuit (wires) about 40 ft away by way of a buzzer / speaker and a light. The mechanics of building...
  7. Brad Hays

    Need help with identifying this type of connection...

    Hi. Can anyone please tell me what type of end connection this is? I've made the trip to Radio Shaq and they don't have it so I'm at the end of my rope with this. Most I know is it's 1/4". Better yet would be a link to where I can order some of these here on the net. If RS doesn't have it...
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