'Supermodified' Servos

ercoerco Posts: 17,844
edited February 2012 in Robotics Vote Up0Vote Down
"Hack your servo v3.00: Get full PID position and speed control from your servo"

Sure looks great in the video: http://www.youtube.com/watch?v=8jajnIBX2cU

But little or no followup info: http://code.google.com/p/zosupermodified

Too good to be true?
"When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

- Pablo Picasso

Comments

  • 5 Comments sorted by Date Added Votes
  • John R.John R. Posts: 1,376
    edited February 2012 Vote Up0Vote Down
    erco wrote: »
    But little or no followup info: http://code.google.com/p/zosupermodified

    Check out the "Downloads" tab, and specifically the data sheet. I only glanced, but it looks like full docs.
    John R.
    Beaver Dam, WisCOWnsin
    Quando Omni Flunkus Moritati
  • ercoerco Posts: 17,844
    edited February 2012 Vote Up0Vote Down
    Good find, John. There is a detailed PDF in "Downloads", it does look like a fair amount of work was done.

    Now please find where to order their servos, kits, or boards... :)
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
  • Martin_HMartin_H Posts: 3,980
    edited February 2012 Vote Up0Vote Down
    I've seen something like that done using the open servo controller. It's a fair amount of work, but you take out the old control board, pot, and rotation stop. You put in a magnet and hall effect sensor to determine rotation and the open servo board to position and give feedback via I2C.

    Now you have a servo that is continuous rotation with position feedback.

    Sparkfun sells open servo boards, but I don’t know if they sell the magnetic sensor.
  • ercoerco Posts: 17,844
    edited February 2012 Vote Up0Vote Down
    I found this: http://www.sparkfun.com/products/9014 but the reviews sound problematic at best.
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
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