Robotic Casket

Discussion in 'The Projects Forum' started by tommygee, May 14, 2012.

  1. tommygee

    Thread Starter New Member

    May 14, 2012
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    I am a robotics enthusiast. I have a Halloween robotic casket that I have been working on for years. It’s basically a casket frame covered with canvas, a store-bought plastic skeleton inside and a mechanical skull(use to have a motion sensor). The complete cycle consists of the lid opening, the skeleton sitting up, one eye drops out (attached to a string) and his bottom jaw flaps, the eye retracts, he lies down and the lid closes.

    It has evolved over the years. I have always used, and even today I still use, DC motors with limit switches. In the early days I used a rope and pulley systems to lift the lid and sit the skeleton up. For the first few years the motors where controlled using Q-Basic through a printer port. For the past three years I have been using an Arduino.

    I have decided that I want more control over my robotic creations so I have started experimenting with steppers. I find it easy to make then step using either logic, ic, or an Arduino. Where my issue develops is power.

    Is there a diy test-bench circuit that will help me determine max power/amps need to push a stepper motor. My steppers need some oomph before they're usable/reliable.

    I am hoping the forum/group can help me work through this.
     
  2. wayneh

    Expert

    Sep 9, 2010
    12,150
    3,058
    Can you not get all the data you need from the manufacturers datasheets instead of experimentation? One's a lot easier than the other.
     
  3. KMoffett

    AAC Fanatic!

    Dec 19, 2007
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  4. tommygee

    Thread Starter New Member

    May 14, 2012
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    Like in Edison's quote posted by KMoffett... I am the guy with a pile of junk. The only two things I have ever bought off the shelf specifically for the animatronics, as KMoffett pointed out, is the MAXI dual and a linier motor, which I haven't used yet.
    I have lot of big stepper motor, but I am not sure how to interpret the data provided on the dtat plates.
     
  5. KMoffett

    AAC Fanatic!

    Dec 19, 2007
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    Post a link or a part #.

    Ken
     
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