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Re: [SherlineCNC] Story ( as promised)

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  • Tom Trikalinos
    At least you had company during the repairs from then on. t On Sun, Oct 4, 2009 at 10:42 PM, chieftoolmaker
    Message 1 of 2 , Oct 5, 2009
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      At least you had company during the repairs from then on.

      On Sun, Oct 4, 2009 at 10:42 PM, chieftoolmaker <
      chieftoolmaker@...> wrote:

      > Now, to give this story it's proper perspective, a little history will
      > help.....
      > I was working for Bulova Systems and Instruments Corp.
      > A division of The Bulova Watch Co.
      > We were making WAD*
      > * = Yes, that is right Weapons of Mass Destruction.
      > It seems that somehow, I always gravitated to working in the Ordinance
      > field.
      > This particular incident took place in their plant in Freeport, L.I.
      > We had two buildings there. One building was the machine shop and a
      > satellite tool room.
      > In the second building was the largest contingent of screw machines on the
      > Eastern Seaboard.
      > Only in Detroit, ( Motor City ) Michigan were there so many screw machines
      > in one place.
      > Now, it was decided to update to CNC.
      > Eight machines were bought.
      > These were large CNC lathes for heavy production.
      > At the time, the machines cost around one eighth of a million dollars each.
      > They were set up and the set up men were trained by the company that sold
      > us the machines....
      > After quite a while, one of the machines developed a problem in a six
      > position tool holding turret.
      > I was called upon to troubleshoot and fix the turret.
      > It was not unusual to do this during the normal lunch period to keep
      > downtime to a minimum....
      > So, I was to work through my regular lunch and take a later one.
      > Before he left for lunch, the set up man showed me a few basic commands so
      > I could do what I had to.
      > At the rear of the machine was a rather large bar feeder.
      > The stock was automatically fed into the holding collet of the machine as
      > need for each successive part.
      > The end of the start of each bar was pointed to facilitate finding the
      > collet which opened to admit the stock.
      > Anyway, I tore down the turret.... It had a pretty fancy indexing
      > mechanism.
      > Somehow, I touched the wrong button(s).
      > In the blink of an eye, the collet opened, the bar feeder shoved this ten
      > foot bar into and THROUGH the collet
      > ( which did not close) and out the spindle of the lathe.
      > It flew across an aisle, embedded itself through one side of a clothing
      > locker and just pierced the other side.....
      > Man, it was a good thing it was lunch time and no one was around......!
      > I started shaking just thinking what could have happened......
      > Luckily no one was hurt......No thanks to me.....
      > That is it.
      > Had I been versed in CNC, no problem.....
      > Thanks for reading.....
      > Jerry G (Glickstein)
      > P.S.
      > After that, a set up man was retained from his normal lunch period to be
      > available to push the right buttons for me.... :(
      > [Non-text portions of this message have been removed]

      [Non-text portions of this message have been removed]
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