Tuesday to Thursday:

Those three days involved many different tests of the robot's structure/design and thoughts about the method that would be used to make the robot move (interaction with it's environment). Some ideas included: using - sound, different shades of light(as has been mentioned), surrounding the robot with boxes(in different arrangements) and making it back away from the boxes when it sensors them, following something (e.g light, a laser, some sort of remote controlled object :P) and a number of other things.

Eventually we got the structure of the robot in a way that suited it's movements. Also the final decision on the method was for the robot to be placed on white paper, with a black border, and to move away from the black when it sensed it. Some photos(one photo, I can't upload others at the moment because of the connection, I'll put lots in the next post):

Once we got everything sorted we were able to get all 3 drawings done(all 3 used the same method of black and white paper and were programmed to turn away from the black paper in a random direction each time).
Drawing 1 was with the holes being poked into it.
Drawing 2 was with a thinish vivid, set to make dots/dashes, with the same distance between them each time.
Drawing 3 was with a thicker vivid and drew its dashes randomly, meaning at random times, lengths and therefore obviously random distances too.

We left the robot going for probably over an hour in the 3rd drawing. All the photos will be on the next post.