MENU Home Introduction Construction Behaviour Sound Sampling MIDI handling Limitations Sound Toolkit	Construction The robot was built from the standard Lego sets available from the Robotics Labs. In terms of specialist sensors, Wobu used one infra-red sensor, two microphones, and two Microswitches. The chassis was based around two DC motors, connected to the main wheels via two worm gears for maximum gear ratio in as small as possible space. Two small gear wheels were at the front of the robot to minimise turning friction. On top of the chassis rested the Handyboard in its cradle, and the front of the robot was based on a suspended secondary chassis. The infra-red sensor was at the very front of the robot, angled slightly upwards to pick up on things like chair and table legs that would otherwise have blocked the robot's progress. Two Microswitches were positioned behind the 'revolutionary' bumper below the infra-red sensor, to allow the robot to determine which side of it had made contact. The microphones were attached to the top of the robot via two struts to attempt to raise their range as high as possible. The 3d renders below (to make up for not having a camera!) show various features of the design. Figure 1 - Robot overview Figure 2 - The bumper Figure 3 - Rear view Figure 4 - Microphone struts
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