Sam wrote: Good idea, Susan, however, once the pin starts a thread by turning, is there >>a chance of messing up the friction by driving it anew? Probably not, I've >>done it this way too. Sam -- >That idea never occurred to me. I haven't encountered the problem, but I >don't know if it happens or not. The final distance is very small. > >Anybody out there who knows about this and can tell us? Susan, I won't get into my technique, but to answer your question about driving vs turning, we had a chapter member who had worked for years at various factories, in r&d and QC. We had a long chat one night and he related results of some several hundred pin block experiments involving many factors, including the effects of driving the pins. It kinda suprised me, but apparently the overall long-term torque is smoother and more consistant when the pin is driven, at least the last bit before final chip&tune. He also mentioned several other suprising things about blocks, and the difference between numbers of plies, etc. I think there's more than one factory-type person on this list that may be able to alter our perceptions about what makes a good, tight block. ? ? ? Guy Nichols, RPT nicho@lascruces.com You are what your deep driving desire is. As your desire is, so is your will. As your will is, so is your deed. As your deed is, so is your destiny. --Brihadaranyaka Upanishad IV.4.5
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