Evolution Robotics, makers of the innovative ER1 robot, have now dropped the price of this kit by 50%. The ER1, assembled and with the ER1 software bundle, is now only US$249.
For those unfamiliar with the ER1, it uses a really cool tinker toy-like extruded aluminum building system to create the bot. Besides the building components, the kit comes with wheels, two stepper motors, a Web cam, a recharcheable power pack and a motor controller. The brains for the ER1 are provided by your laptop computer, which docks onto the bot.