Specs:

3 Wheels each powered by its own motor

4th motor to steer the wheels via gears

Wheels can rotate 360 degrees

Controlled with a throttle and steering joystick.

Specs:

4 Wheels - only rear wheels are powered

2 Stage lift with stationary fork - reaches about 7 inches high

Autonomously operated (like most NXT robots)

Uses the ultrasonic sensor to detect a "load"

A video of the vex meeting.

Rough draft of possible new robot cart:

Imitation of 254/968 Gearbox

Inventor Designs Gallery

Mr. Calder brought the team to visit a team working a autonomous car for the DARPA Challenge.

The electric SUV with lasers added on top:

The electronics in the trunk of the car, including a quad-core PC:

Camera video on the front screen:

A video of the autonomous steering:

Over the summer, team members volunteered at Calder Academy to help students in a robotics course.
Here's a video of the vex projects completed:

Robots in the video (order of appearance):
1. Small Arm Bot
2. "Batmobile"
3. Big Arm Bot (several modifications were made throughout the video)
-Tank tread drive train
-Arm lifts up/down and rotates
-Claw uses a worm gear to provide a strong grip
-Automated balancing system: A counterweight on the opposite end of the arm will shift in and out to counterbalance extra weight being lifted. Uses limit sensors to detect the lean of the arm.

A video of a simple autonomous routine using vex robotics. The task is similar to the Rack n' Roll game except there's a box instead of a rack.