Today our parts order arrived - clutches, batteries, more anti-slip mat, spare motors, and a 9v backup battery holder for our VEXnet. We didn't get much done as we had to leave really early, but among other things we mounted the towers on the base.
After the motors overheating in every match at kristin, we have moved two of the motors from the lift to the drive. The motor distribution is now:
1 motor for the sucker
1 motor for the tracks
2 motors for the lifter
2 motors for strafing (sideways drive) wheel
4 motors for the forward/reverse drive
The speed of the robot is still the same as before - sidways going slightly faster - but it should be a lot stronger. We have also changed the gearing in the lifter from 1:15 to 1:25. It is a lot slower, but I think with the drive the speed it is, too much faster would be wasted. I took the basket and towers off the robot, and also extended the tracks in the basket to 18" instead of 12". The towers are ready to mount on the robot tomorrow when we can get some metal plates.
Four teams met together at kristin school today for a small practice scrimmage. Present was us of course, K-Force (Kristin School), Binary Blitz (Avondale College) and GC/EC (Glenfield College). Our robot had quite a few changes done to it, and each time we tried it, after about 10 or 20 seconds, the robot would stop moving forward, and we could only move sideways. Amazingly, we won every elimination match except one! We found out the problem was the motors overheating. They were always very hot after each game at the regionals, but they had never overheated. The cause was probably the basket which was scraping on the ground, and also that the new version of the robot was slightly heavier than the last.
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We have been busy today making some more leg-wheels that are offset 45 degrees from normal ones. Three of these will be mounted between the existing leg-wheels on the sucker to make it suck in balls more smoothly.
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