Challenge #3 - Part 1
Wednesday, December 12th, 2007Well, 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…
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First ANxTs have arrived!
Monday, July 23rd, 2007The first two submissions for NXTasy challenge #3 have arrived!
The first submission, from ‘Dad and Adam’ is called ‘Sandow’. It has a lift object weight/ANxT body weight ratio of 15.2 (!) and a mass-transfer rate of 77.7 kg cm/sec.
Second submission by Mac Ruiz, aka 222Doc, has a lift object weight/ANxT body weight ratio of 5.15 with a mass-transfer rate of 34.5 kg cm/sec.
Keep going, guys! Deadline is still far - September 15th 2007!
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NXTasy Challenge #3 - The ANxT!
Monday, July 9th, 2007
NXTasy challenge #3 if finally annouched! Your mission will be to build an NXT ‘Ant’ or ‘ANxT’ in short.
Ants are remarkable little creatures, capable of lifting weights several times their own body weight (if you search the net, you frequently find sites quoting that ants can lift 10, 20 and even 50 times their own body weight. However, I could not found a scientific proof for these values…).
The goal of your ANxT would be to move an object (the ‘weight’) a distance of 1 meter without touching the floor. The grade will be 50% determined by the object weight/ANxT weight ratio, 30% by the mass transfer rate and 20% by how much your ANxT is, well, ‘antish’…
Oh, and the object must be bigger then your ANxT in all dimensions, did I mention that already 
?
The full details, rules, submission procedure, deadline etc. are here.
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