Q: Here is our CNC program on GSK 980TDb:

G76 P020560 Q100 R0.1

G76 X17.4 Z-15 P1950 Q500  F3.

X17.69

X17.64

X17.61

X17.60

X17.4

But the tool hit the workpiece too much for the first cut, the pulse equivalent of GSK980TDb is 0.1u, what happened and how to solve this?

A: The parameter Q and P must be set to match 0.1u, e.g. 10 times bigger.