I have just checked the wiring from the drivers to the stepper motors and it all looks good.
A+ Red & Blue wires
A- Yellow & Black wires
B+ White & Brown wires
B- Orange and Green wires
I also remarked each stepper motor and both land in the same spot, I then ran a short G-code and that landed in the same spot, of course it will not when it misses a step.
Now I have my setup in metric and I rechecked the motor tuning, I had the Acceleration set to 320. I got that setting from some where online but can not find it now, however I'm now thinking that this is to high should I start at 25 and work up till it breaks again then reduce the setting by 10% or is this wishful thinking.