Fanuc Parameter 8901 Better

When 8901 = 1, the Geometry offset represents the exact physical position of the tool tip (relative to the machine zero), and the Wear offset is a simple, independent modifier.

A: Yes, but caution is required. On a lathe, 8901=2 improves threading consistency and eliminates "chatter" on long taper turns. However, for part-off operations or grooving, use G61 to disable it. Do not use 8901=2 on a Swiss-type lathe with independent guide bushings. fanuc parameter 8901 better

Let’s debunk a few misconceptions: