So I purchased this stepper motor: http://www.sparkfun.com/commerce/product_info.php?products_id=8420 (data sheet is on that page)
And figured that I could run it off a DC power supply and the Arduino using the Stepper library. I'm able to run the motor but what I'm unable to do is power any more than whatever current is coming out of the digital outs from the arduino.
The stepper motor has 6 pins. I can connect the 4 control pins to the Arduino and it will move as expected, but that leaves 2 pins remaining which I ASSUMED would be for power. However, it doesn't do anything different when I attach a power source.
How can I get more torque and power into my stepper motor?