anyone know what i am doing wrong

[cncrich]

in DOS or a Windows command prompt use fc.exe the usage is:
FC FILE1.EXT FILE2.EXT
that will put the differences on the screen
if there are no differences then it will say something like "no differences encountered"
if there are a bunch of differences you can output the data to a file
FC FILE1.EXT FILE2.EXT > DIFF.TXT

where diff.txt would be a text file containing the differences and file1.ext and file2.ext would be the files with the appropriate extension (usually .cnc)

[MIKE JEFFERS]

paul
try giong to another dec place (.001 /.0001) it could be the software rounding up/down the values .with a surface it takes very little to achive this effect
set the resolution to 1 dec place and see the differance for an extreme scinario
mike.

[ViperTX]

I didn't see any pattern on the physical dimples....maybe looking at the gcode and using Mike's approach with the data...you may see something.