My Machine Robots so far...
Brick Sorter
This is a view of my brick sorter. The bricks start in the chute on the right of the robot. They fall down by gravity onto the conveyor belt seen in the middle of the robot. A light sensor is mounted above the conveyor belt. The belt is set on a timer, and stops when the light sensor is ready to take a reading. After the light sensor measures the reflected light from the lego brick, the turntable on the left moves to a different position. The conveyor belt starts up again and the brick tumbles down into its own distinctive pile. This is a very effective way to sort up to four colors with a very high level of accuracy.
A close up view of the conveyor belt and the light sensor mount.
A close up view of the turntable.
*for more documentation and the .rbt files-please visit my nxtlog @ http://mindstorms.lego.com/nxtlog/projectlist.aspx?SearchText=nxtjacob
*for larger pictures, visit my gallery found in the navigation links
Cam Bot
This is a robot I made to serve as an automated security system. The US Sensor (under the camera mount) can be used as a very nice "motion detector." If movement is detected in front of it, it will snap a picture of the intruder. The camera mount is on a rotating base that can be used to turn the camera if you choose to control the robot manually.
Pictured here is the camera mount. Though the camera is not in there (I had to use it to take the pictures ;), you can see how it would slide into the frame. A motor (seen on the left) can then move the axle with the worm gear in to press the button on the camera.
Pictured here is an optional module that can be used to control the motion of the turntable that the camera is mounted on. If the slider on the track is 15 cm away from the US sensor, then it will not move. If the slider is pushed forward of the default position, or pulled back, then the turntable will move accordingly. You can then use the sound sensor to trigger the picture taking mechanism.
Pictured here is a joystick that can also be used to control the camera's turntable. You can then use the touch sensor to trigger the shutter release on the camera.
*for more documentation and the .rbt files-please visit my nxtlog @ http://mindstorms.lego.com/nxtlog/projectlist.aspx?SearchText=nxtjacob
*for larger pictures, visit my gallery found in the navigation links