built by Simon Goldin

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Target Environment Locomotion Method
Indoors Static
Sensors / Input Devices Actuators / Output Devices
3 position sensors 2 DC motors
Control Method Power Source
Autonomous Battery
CPU Type Operating System
Lego RCX N/A
Programming Lanuage Weight
Time to build Cost to build
URL for more information
The catapult is a great robot that uses many gears and has lots of power. The program is as follows:

Step 1: motor A (arm) on.
Step 2: When arm touches touch sensor 1, motor C (loader) on.
Step 3: When loader touches touch sensor 3, motor c rev. direction, on for 1.5 seconds.
Step 4: Motor A (arm) on.
Step 5: Keep on repeating steps 1-4.

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