NXT Claw Game
First Lego League team BEBO built this claw game a pre-season project. The joystick has two motors used as rotation sensors, and controls the claw via bluetooth. [Via The NXT Step]
LEGO
Your Name in Lego
Interesting notion for a Lego-based enterprise Eli Carter, who wants to sell you a custom-packed kit (complete with custom instructions) to build a Lego nameplate with text and colors of your choosing. Check it out at Brick-Built Nameplates.
Excellent Lego Robotic Arm
This Great Ball Contraption features an nicely designed robotic arm. [Via The NXT Step]
Milling Machine Made Entirely From Lego
OK, almost entirely: The actual cutting is done by a metal drill bit. Everything else, however, is Lego system elements. It looks like the machine uses a “raster” type subtractive process, covering the surface of the block in a close-packed grid of holes, each of which is drilled to an appropriate depth to form the final surface contours.
Mindstorms Cake Cutting Robot
This creation, by Bart and Stef, repurposes a can lid to cut cakes. You can select as many slices as you want and the NXT brick computes the angles.
Mindstorms CNC Mill
This Mindstorms CNC mill was the first original model YouTube user kabeltomten made with his NXT 2.0 set.
One-Motor, All-Mechanical Obstacle Avoidance
OK, obstacle “reflectance” might be a better term, since this Lego Automatic Synchro Drive from YouTuber xyzzzach bounces off of obstacles, rather than actually avoiding them. But its design is so clever it deserves a bit of nomenclatural slack, IMHO.