Success.
Well after many trial runs and a lot of head scratching and walking to and from the workshop I finally realised what I was doing wrong.
When the roughing cut has been done and I need to change from a 6mm end mill to a 3mm bullnose and reset toolheight I was entering the new tool height and resetting the tool bottom and resetting tool height when I didn't need to and the last couple of jobs I have Done by only setting the new tool and just pressing enter everything is working perfect .
So regardless of me thinking it's a crap machine and not fit for purpose as in many cases I am sure that it boils down to operator error, its just we get so involved with the problem that we don't see where we are going wrong .
I wonder how often this happens in our lives .
ONE HAPPY CHAPIE
A big thank you Routerdriver