Chief Delphi - mechnical arm question

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- - mechnical arm question (http://www.chiefdelphi.com/forums/showthread.php?t=92714)

laxdogg14

24-02-2011 14:34

Re: mechnical arm question

the motor needs a holding current that is applied in software.

Alan Anderson

24-02-2011 15:14

Re: mechnical arm question

Quote:

Originally Posted by laxdogg14 (Post 1030743)

the motor needs a holding current that is applied in software.

Some motors can handle that okay for a while, but things like the Fisher Price or Banebots ones this year will quickly overheat and likely be destroyed if any appreciable current is applied while the motor is not turning. They rely on an internal fan to keep the windings cool.

Borntolose

24-02-2011 16:27

Re: mechnical arm question

Mechanically: You could use a worm gear to power the arm.
Electronically/ Programming: Use a PID loop to make the arm keep it's position as long as the joysticks aren't moving.

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