Re: Fault in program
You mean the tool is gouging the top surface outside of the pocket? That could be happening because you are ramping down outside of the pocket boundary. I would think either raising your R-plane a little, or not ramping outside of the pocket should solve the problem.
You say it doesn't happen if you turn on Exact Stop, so it is probably a problem with the rounding that occurs between moves. You could try putting G61 (exact stop) before the positioning moves, so that the corners aren't rounded. Then put G64 right after you get in position, so that your pocketing moves aren't done in exact stop, which will slow things down.
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