hi ger21
i ran a test of this file and when it came to the large inner hole it was offset by almost .375 from center on the x axis and the 4 small outer holes were offset by .038 from their correct location on the x axis. they were located correctly for their location on the y axis. as you said the drawing isnt square or i take your word on it and i can see were this would cause the small offsets on the small holes but why would the large hole be so far off i know this drawing cant be far enough out of square to cause that could it? i have my machine built and running but this problem with the conversion of file not being what i have drawn is making me feel like i have gotten in over my head