Talk:4 Axis TB6560 CNC Stepper Motor Driver Board Controller
Wait here's some head start for a TB6560-based open source driver:
http://www.thingiverse.com/thing:3548
This chip delivers good power. Have a couple of those chips waiting for time for development, doesn't seem harder than with other driver designs.
Here's the datasheet:
http://www.glyn.de/data/glyn/media/doc/TB6560HQ_FFGE_P31_060531.pdf
Lanthan 13.09.2011