Today I'm working with a new board ATMEGA644P Sanguino, and some drivers for stepper motors based drv8825, the engines have gained by recycling such things as printers and CD drives, today I want to build a reprap based recycled technology but bigger and portable like the one in the program puestra BenHeck, I am also interested in putting together a proposal for new things suit me at this time.
atmega644p sanguino
drv8825 4 axis board the big red points are conect together