Quote Originally Posted by mturneruk View Post
Do you think this could be down to Noise ?
Anyone got any suggestions
Nope it's dodgy keyboard happens often. Change keyboard at try it again think you'll find it's ok.

The losing position could be number of things.? Most common is slipping coupler or pulley. Mark them and keep an eye to see if move.

Could be you have over tuned the motors and it's losing steps on rapid moves between positional moves.? What Velocity and Accel do you have set for each Axis.?