Quote Originally Posted by dazp1976 View Post
You buy drives worth £8 or less.........
You get performance worth £8 or less.
Daz you took the words from my mind.

To the OP with 28V voltage, you are playing Russian roulette and you will blow those drives if you try to run at high feeds and deaccelerate quickly as the steppers turn into dynamos and dump 40v + back into the drives.! . . . . . . Careful with the regulator as well because if it shuts down with the back EMF you'll get hassles.

My advice is to buy decent drives and throw those toys away and run the higher voltage, it will transform the machine.