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October 2008

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Subject:
From:
David Levy <[log in to unmask]>
Reply To:
David Levy <[log in to unmask]>
Date:
Mon, 13 Oct 2008 09:44:20 -0400
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Programs get corrupted from time to time.  It's best to try to  
identify the problem by copying and pasting blocks into a new file.     
Or, if the program is not to complex, then just rewrite it in a new  
file.


On Oct 12, 2008, at 11:32 PM, Jane Jiang wrote:

> My team had a very odd problem today with the robot.  This is my  
> third year coaching.  I've never seen anything like this.  My team  
> tried to adjust a mostly working problem.  They are trying to cut  
> down a 280 degree B motor only turn.  As soon as they made the  
> change, the turn became a lot wider (almost double).  They cut it  
> down all the way to 20 degrees, the robot still turns a lot more  
> than the original 280 degrees.  The block before the turn is a  
> straight backup.
>
> I thought something might be wrong with the motor sensor.  So the  
> kids wrote a testing program just to do the 200 degree turn.  It  
> worked perfectly.  When they cut and paste that same block to the  
> right place, the robot started acting up the same way.  The odd  
> thing is that when they run the original copy of the program, it  
> worked the same way as before (mostly working but the turn really  
> needs to be reduced for better accuracy).
>
> We still have the original NXT 1.0 program.  Could that be a bug of  
> the software?
>
> I'd appreciate any suggestions you might offer.
>
> Jane
>
> Team 3377
>
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