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Subject: 
Re: motors
Newsgroups: 
lugnet.robotics
Date: 
Sun, 18 Jul 1999 15:45:50 GMT
Original-From: 
Jacob Schultz <anne.jacob@get+spamless+2net.dk>
Reply-To: 
C948605@STUDENT.avoidspamDTU.DK
Viewed: 
1201 times
  
Pavel Petrovic wrote:

I found that one of my Mindstorms motors is a bit stronger
than the other. The robot should go forward, but slightly
diverts right. When I exchange the motors and nothing else,
it diverts to the left. Does anybody else have similar
experiece? What is a normal lifetime for these motors?

That's just how mechanical parts are - all parts are slightly different.
I've used a differential between the two motors, and then measured the
position difference with a rotation sensor. In NQC I just make one of the
two motors "float" when the difference gets to big. In this way the
robots moves straight with two motors. When I want to turn, I stop the
regulator task first, and starts it afterwards - just remember to reset
the rotation sensor counter.

Jacob

--
Did you check the web site first?: http://www.crynwr.com/lego-robotics



Message is in Reply To:
  Re: motors
 
Hi, I found that one of my Mindstorms motors is a bit stronger than the other. The robot should go forward, but slightly diverts right. When I exchange the motors and nothing else, it diverts to the left. Does anybody else have similar experiece? (...) (25 years ago, 10-Jul-99, to lugnet.robotics)

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