fischertechnik ROBOTICS TXT Discovery Set Manual page 42

ROBOTICS
TXT
Discovery Set
Here are a few more tips on the playing field:
Ensure that a large gap is not present between the floor and the
sideboards. Otherwise the camera could think the gap is a stripe and the
calculation of the position would be wrong.
To prevent this it is important for you to fold the edges exactly and
ensure that the playing field is placed on a level surface. In addition
you can also place books or other objects along the outsides of the
sideboards to help hold them down.
If the ball continuously rolls toward one corner or frequently stops
against one of the sideboards, you can level the playing field by placing
flat objects such as newspapers, school notebooks, cardboard, etc.
under the corners so the ball will roll back to the middle instead of
stopping against the sideboard. This will put more action in to the game!
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