Well, instead of writing everything (a formable task considering the length) I decided to split the write-up into multiple posts. So, finally, here is the first part of the challenge 3 summery:
What did we have? eight competitors and a total of thirteen submissions. The goal, I remind, was to build a robot that moves a weight 1 meter in air. Score was given, among other factors, to the robot body/weight ratio. Due to the similarity with ants, I called these robots ‘ANxT’s….
The figure below shows the progression of body/weight ratio from the challenge announcement (Jul 9th) till the deadline. I must admit you surprised me (again…) with the amazing results at the final submissions.

As promised, I will put some information on each of the competitors robots.
To get started I show below the robot of kbirk from Denmark (1.1 body/weight ratio):
the video of this robot is found here and the RobotC file is here.
The second robot is from Brickmaster_MV, a 13 years old NXTer from the US. I enjoyed the image below showing weighting of the robot:

Well, he did find a better way to measure it’s weight later… His robot reached body/weight ratio of 2.3. A better view of his ANxT is this:

You can see this robot in action here. His robot didn’t pass the second black line at the end of the process, but it doesn’t matter much in this case…
I enjoyed very much getting these two submissions. Both kbirk and Brickmaster_MV knew they had no chance at winning when they submitted their robots, but both said they enjoyed and learned a lot in the process – which is the reason for these NXTasy.org challenges anyhow!
to be continued…