After a shocking weigh in at 1030 grams, changes to Snaggletooth needed to be made to meet the weight requirement of 950 grams. The over sized battery was where I looked first. By changing to a smaller but same voltage LiPo battery, I was able to shave about 20 grams. This left a lot of excess space on the back support wall, as seen in the original build of Snaggletooth. I was then able to decrease the size of the back wall by 4 studs all the way across, which saved another 35 grams. While changing the wall structure, I found that it would be practical for the the walls to go straight down instead of slopped at a small angle. Doing this helped be take off some unnecessary bricks and pins. Unfortunately, the 90 degree angle forced the entire wall to drag on the ground instead of a slight piece of each brick. As seen in the photo below, I added 2 rounded liftarms that extend lower than the wall to prevent the whole thing from dragging. Other small structural adjustments reduced the weight to about 875 grams. With some extra weight, I was able to incorporate the 2nd XL motor on the opposite side. However, until I find a 4 gear combination with 1:1 reduction, this motor will be inactive.
With 6 robots built and almost ready for a total of 18 fights in season 1, the first videos of the series should be uploaded either by the end of the year or the very beginning of 2013. I have a few final bricks and power functions pieces on order as of today to put the finishing touches two of the robots. Since there are only 6 robots total for the first season, round robin will be the style of the tournament. (More information about the brackets can be found on the "season 1" tab on this page.
As for an arena, I am actually working on an arena for my real combat robots to fight in. I am sure hoping it will be interchangeable for Lego robots and my real robots. It is an 8x8 ft. box with 1/4 inch Lexan walls. As of right now, I don't have a floor for the arena, but either wood sheets or steel will be used. This is another reason why season 1 is currently on hold. Hopefully the arena will look a lot like the one in the picture on this page, minus the hammers in the corners. Until then, my kitchen floor will be the arena, but I don't plan on filming the season without a proper arena. However , test battles and grudge matches filmed on the floor will make their way onto Youtube sometime before or throughout the series.