Doh scrap that about the power needed I just found my answer as I carried on looking lol that allways happens after 2 hours of looking then asking sorry.
but if some one could point out about the limmit switch bit that would be great?
Answer for my question for some one else if needed:
I will be placing 36v as I planned at the start as the stepper motors should take it and work better, the board can take a max of 36v and my PSU is around 35. something volts so should be good.
well that the short answer on what I read but if some one think I am wrong please say as I dont want to be wrong for me and others