circle cutting mach 3 problems help please

hi all i am new here i got so far with the cnc plasma 3000mmx1500mm water table up to the point of doing circles running mach 3 and xp

1 X ZP5A-INT Breakout board
3 X 4.2A PM542 Microstepping Drivers
3 X 3 Nm SY60 Stepper motors
1 XPS408-5, 300W regulated power supply
all from zapp auto

i have everything else done there must be something i am overlooking here

project so far

plasma cutters
goodwin air plasma p18
hypertherm 1250 G3 if i can affort it lol

http://www.youtube.com/watch?v=TtWlG...4UKFl-kk06ygzQ

Hi,

Did you ever get to the bottom of this?

.Me