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« on: September 28, 2011, 10:08:14 AM »
RUT ROW, Ray that is a different story now. Changing the offsets in the MIDDLE of the program. THAT will make keeping track of where you are a lot harder. ND make it a lot easier to crash the machine if you forget where you are OR forget what comp you have active.
Normally all your work would be done from one datum point(origin). (simple part)
The only reason I could see for that is IF you are running your knee as the tool comp for really long tooling. Then it would make sense to use it as a knee mill is NOT blessed with a lot of Z travel for long tool comp. EVEN then I would just use a Fixture Change G54-G55 to a setpoint then when you need to return just G55-G54.
BUt as always your mileage may vary, (;-) TP