O.K......I will flog a dead mule. I worked as a machinist for 20 years before moving into quality. Anyone who thinks that thread milling produces a thread void of irregularity is wrong. Yes.....wrong. You will still have raised edges , frayed edges, etc. Bottom line: there is no clear cut way to check thread location on a CMM, period. You can be approximate. Never exact. Which is what we strive for.
I don't think you were getting the point. I never said anything about my method having absolute no error. I was referring to using the pitch function instead of thread locators (which using could have error too) you will never be exact with any measurement if your going put it that way. I was referring to methods that have produced me better results. and if your telling me that a thread that is produced with a tap rather then a thread mill cutter creates a better thread. I would have to disagree.
O.K......I will flog a dead mule. I worked as a machinist for 20 years before moving into quality. Anyone who thinks that thread milling produces a thread void of irregularity is wrong. Yes.....wrong. You will still have raised edges , frayed edges, etc. Bottom line: there is no clear cut way to check thread location on a CMM, period. You can be approximate. Never exact. Which is what we strive for.
I don't think you were getting the point. I never said anything about my method having absolute no error. I was referring to using the pitch function instead of thread locators (which using could have error too) you will never be exact with any measurement if your going put it that way. I was referring to methods that have produced me better results. and if your telling me that a thread that is produced with a tap rather then a thread mill cutter creates a better thread. I would have to disagree.
