There are a number of factors that cause this including but not limited to:

 

1)      Changes to the robot.  It's amazing how one beam in a different
place can change the way the robot works

2)      Line up issues.  Line the robot up 2 degrees to the left different
at base and that translates to many degrees off several turns later

3)      Battery issues.  As the battery is fuller or less, power changes
which can change how your robot reacts

4)      Friction.  If the wheels get a better grip on the mat one time
versus another or are pushing something heavy which changes your friction,
then that will change the way your robot reacts each time.

5)      Reset motors.   Sometimes the motors are still counting from a prior
step and it messes up future steps.

 

The Gyro sensor has improved our team's consistency this year and is a HUGE
improvement on the robot because it helps counteract some of these other
factors.  However, due to line up and friction issues, the robot is still
inconsistent.

 

Good luck!

 

Mandy Wilson

 

From: First Lego League in Virginia and DC
[mailto:[log in to unmask]] On Behalf Of Tonya Lapham
Sent: Tuesday, October 29, 2013 12:34 PM
To: [log in to unmask]
Subject: [VADCFLL-L] Robot consistancy

 

Hello,

 

I seem to have this trouble each year.  The robot will be doing just fine.
Then suddenly the programs that were working fine now are not working the
way they were programmed.  And it seem to happen about the same time during
the tournament season, only it is with a different set of kids each time.
Any suggestions on how to trouble shoot these issues?


 

-- 
Thank you!!

Tonya Lapham

Coach

Seismic Wave

 

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