get a few pins in. Without the
hammer, I had to be content to just
hold the Big Cheese there. The fight
went back and forth for a few
minutes and then disaster struck.
The front wedge spikes on Old
Iron got stuck in the wood kick-plate.
The rule allowed one free unstick.
After the restart, I noticed that one
side of the drive was starting to fade.
As I tried to loop around to face The
Big Cheese, Old Iron took a slow stroll
right into the wall on the opposite
side of the arena and got stuck again.
The first fight went to The Big Cheese
When I pulled the robot back to
the pits, I noticed that one motor was
really hot and the other motor was
quite cool. Coincidentally enough, the
motor that wasn’t really doing
anything during the match was the
cold one. Imagine that. Upon further
review, the drivetrain was loose at
various locations and the wheel was
slipping on the shaft.
We retightened all the hardware
in the drivetrain, charged the
batteries, and got ready for our next
fight. We also hit the front wedge
teeth with the angle grinder to make
them a little less sharp. This appeared
to work as Old Iron didn’t get stuck in
the wall for the rest of the
The next match was against
Bear Tooth, which had a vertically
spinning disk. It was a brand new
team and a brand new bot built as a
college senior project. The two bots
started the match with a full length
box rush and smashed together right
in the middle of the arena. Old Iron
immediately had the opposite drive
starting to fade. I managed to get a
nice box push and got a few pins.
Bear Tooth got a couple nice hits
in, but it didn’t seem to do any
significant damage. The drive on Old
Iron was getting worse as the fight
wore on, and I only had one drive
really functioning well. At about the
mid-point in the match, Old Iron just
suddenly stopped moving. The fight
ended with Bear Tooth winning by KO.
32 SERVO 07.2015