Becky covered the first prototype of Instructables user marc.cryan’s homemade claw picker game about this time last year, when it was still just a two-axis machine in a doorframe. Now, Marc has added a third dimension, expanded the crane’s envelope to cover an entire room, and upgraded the business end with a SparkFun robotic claw. A universal TV remote serves as controller, communicating by IR with Arduinos in each of the two big motor housings.

Build a big crane game

Mindstorms skill crane