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continuous motor

yzcheyzche Posts: 35
edited 2005-02-28 15:25 in BASIC Stamp
I use BS2 to rotate continuous motor from parallax. I can make it rotate continuous 360 but I can't make it return to its starting point. It look like it loss track of its location. Is this suppose to happen?

Comments

  • dandreaedandreae Posts: 1,375
    edited 2005-02-25 21:19
    Hello,



    There are couple of ways to solve this issue, one is to use an encoder and the other way is to use a stepper motor.· Here is a link for the encoder:· http://www.parallax.com/detail.asp?product_id=28107.·



    Dave





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    Dave Andreae

    Tech Support
    dandreae@parallax.com
    www.parallax.com

    ·
  • Robert SchwartzRobert Schwartz Posts: 141
    edited 2005-02-25 21:30
    Normal DC motors don't have any means of returning to their original start location. As Dave said, if you want to make it turn a revolution and return to it start location, you can either use a stepper motor, which turns a certain number of degrees each turn, or use an encoder, which has a number of holes with IR detectors that tell you how many degrees you have travelled.
  • Tom WalkerTom Walker Posts: 509
    edited 2005-02-28 15:25
    Or some kind of "I am at the home position" switch....

    If you have a hankering to do some reading, research open-loop vs. closed-loop systems...

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    XYZZY...PLUGH...*poof*
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