Hi All,
Apologies for all the questions, but being a total noob I'm a tad stuck. Firstly thanks to Hood for pointing out the reverse issue, that sorted something,  I've managed after a few days to get it to do something 

.
I created with Aspire 3 a quick piece, loaded it in to Mach 3 - set everything and away it went 
except it came out like the attached image, sorta cut in twice in the timber one a little higher than the other. Anyone have any ideas where I've gone wrong as after three attempts I'm still getting the same result. 
I can attach the tap file Aspire creates for inspection if it's required.
Cheers
Carl