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Subject: 
Re: Robot – Accuracy
Newsgroups: 
lugnet.org.ca.rtltoronto
Date: 
Wed, 13 Feb 2002 02:06:37 GMT
Viewed: 
399 times
  
In lugnet.org.ca.rtltoronto, Bruce Sheridan writes:
I haven’t finished my robot because I couldn’t get repeatable accuracy from
the rotation sensors. I tried various solutions but nothing was giving me
the accuracy I wanted. It was driving me nuts!

I switched over to touch sensors, combined with a slightly more involved
chunk of logic that controls the movement, and I can now make that sucker
stop consistently on a particular tooth of a gear rack.  To test it, I put
it in a loop…and so far it has hit the mark 368 times!

That was the X-axis…now for the Y-axis…

What do you mean by tooth?  As in variability of a width of a tooth (ie,
roughly 2mm wide (I mean, 1/8" of an inch or so :)) or like consistently on
the top of the tooth?

Calum



Message has 1 Reply:
  Re: Robot – Accuracy
 
(...) On the top of the tooth....within 1/16th of an inch...every time. On top of that, my x-axis is the heaviest component (carries the Y-axis) and is driven 3:1 to the rack. (22 years ago, 13-Feb-02, to lugnet.org.ca.rtltoronto)

Message is in Reply To:
  Robot – Accuracy
 
I haven’t finished my robot because I couldn’t get repeatable accuracy from the rotation sensors. I tried various solutions but nothing was giving me the accuracy I wanted. It was driving me nuts! I switched over to touch sensors, combined with a (...) (22 years ago, 12-Feb-02, to lugnet.org.ca.rtltoronto)

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