Thanks Jazz for that. I don't understand what you mean about the steps but that is due to my lack of knowledge! I will try and check what you suggest to check tomorrow and see if I can see any issues. Sorry for the shaky camera. If I cannot find anything and continue on with the job I will put a packer behind the plastic block to get the moving jaw of the vice further out of the way!

I wonder if I could have hit my shuttle with my hand or the mouse and if that did something. I seems odd that I have run the code many times since without issue. I am getting a little more familiar with mach3 I guess every one starts somewhere.

Thanks very much for now

Suesi