my build from the start

[blackburn mark]

easy way is to cut air to see where its start/reference point is
you will have stipulated this when you drew it up
it may need to be zeroed in on one of the corners of you block or it my start from the dead centre
im guessing it depends on what the default is if you didnt stipulaite this yourself in lazycam

i tend to cut air to kick of with, just run the first couple of lines to make sure youve not made any big mistakes

edit: if you have a look in the tool path window in mach that should give you a clue as to where the tool will start from in comparison to where it will make the first cut