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Subject: 
Re: Does anyone have the 8479 bar code truck?
Newsgroups: 
lugnet.build
Date: 
Fri, 1 Oct 1999 19:02:38 GMT
Reply-To: 
MATTDM@antispamMATTDM.ORG
Viewed: 
420 times
  
Chris Phillips <chris.phillips@computerboards.com> wrote:
One application of this is for initializing a robot arm.  When the RCX program
first starts running it doesn't know the actual position of the arm.  If the
arm has a stop at one end of its motion and a clutch gear in its drive train,
you can simply run the motor toward the stop for "long enough" time that you

I'm using them in lieu of touch-sensor feelers/bumpers on my robots. I have
the motor attached via the slip-clutch, and a rotation sensor attached to
the axle. When the sensor stops changing, the robot knows it's stuck
somehow.


--
Matthew Miller                      --->                  mattdm@mattdm.org
Quotes 'R' Us                       --->             http://quotes-r-us.org/



Message is in Reply To:
  Re: Does anyone have the 8479 bar code truck?
 
(...) The clutch gear is the same basic size as a normal 24-tooth gear, but the center (where the axle passes through) can spin freely if there is too much force holding the gear in place. I believe the gear says right on it that it will stall (...) (25 years ago, 29-Sep-99, to lugnet.build)

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