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  1. Nargo

    Can a CNC program malfunction?

    Thanks mfgenggear, for another very interesting post (your first one was very useful too). I am with you on all the points you mentioned on this one. I feel that now I am well prepared to review the explanation of Root Cause and description of Preventive Actions that I requested to the valve...
  2. Nargo

    Can a CNC program malfunction?

    Thank you, CWB1, for this very interesting post. As I explained in my original question, I don't have experience with CNC (to give a little more details, I have worked for 32 years, 29 of those as mechanical engineer, but never in a CNC dept.). So, due to my ignorance, I wrote yesterday that...
  3. Nargo

    Can a CNC program malfunction?

    Excellent replies, each of you contributed very useful points, so now I have several things to review when I receive the Root Cause Analysis from the valve manufacturer, and also got two actions for me to investigate. I summarized both types of points below. And, thank you 3DDave, you have...
  4. Nargo

    Can a CNC program malfunction?

    Thank you very much, 3DDave, for the quick reply and for the very useful explanation. But, while reading it, I realized that I didn't mention in my post, that we received five valves, the nuts of the other four were fine at 2.237 inch between flats. However, I don't know if the four SAT nuts...
  5. Nargo

    Can a CNC program malfunction?

    Greetings! The company where I work received a valve with its driving nut, where an actuator engages to open and close it, too large. The specified width across flats of this hex nut is 2.236 +/- 0.005 inch, but it was delivered with this dimension at 2.282 inch. All the other features of...

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