This is a two channel version of a larger 8 channel studio based stepper motor controller. The unit is portable and can be used for motion control applications outside the studio.
lid off- showing power supply, arduino and stepper drivers. I use the Accelstepper library on the arduino to control the steppers. Alternatively, for stop motion control I use Dragonframe which has a DFmoco sketch for the arduino..
Rotary stage in the background with Mac plugged into arduino.
Lid on – showing stepper cables, rotrary stage and usb cables.
User Manual for the stepper driver is here
The schematic I used (found on an animation motion control forum post) as a basis for the original 8 channel studio version is as below. I just used 2 channels for the portable version.