what do you think about this combination ...
drivers
http://www.pminmo.com/l297-8/l297-8.htm
interface
http://pminmo.com/3axisopto/3axisopto.htm
or is the better to go for those drivers and interface pminmo has in his shop
L297-8 board and 4 axis interface ?
http://pminmo.com/forsale/blankpcbs.htm
i don't need 4axis on current machine, so it's not a problem.