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January 1999

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Subject:
From:
"Leslie O. Connally" <[log in to unmask]>
Reply To:
Leslie O. Connally
Date:
Fri, 22 Jan 1999 08:28:11 -0600
Content-Type:
text/plain
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text/plain (54 lines)
Hi Ken or is it Jim,

        You might try small end mils in lieu of the drills, which would not be
so prone to walk.

Regards,
Les

>  From: Ken Brown <[log in to unmask]>, on 1/21/99 8:23 AM:
>  I AM HAVING A PROBLEM WITH DRILLING SLOTS. THE LARGER SIZE HOLES ARE NO
>  PROBLEM BUT ANYTHING UNDER .055 IS GIVING ME CROOKED OR JAGGED LOOKING
>  SLOTS.  IN THE PAST WE ALWAYS EDITTED ARE DRILL FILES ADDING G85S', BUT
>  A GREAT DEAL OF OUR CUSTOMERS ARE ADDING SLOTS IN GREAT NUMBERS ALL OVER
>  THEIR BOARDS. AND ADDING G85S' BECOMES TIME CONSUMING AND LEAVES US OPEN
>  TO OPERATOR ERROR. I REALIZE THAT FEEDS AND SPEEDS ARE PART OF THE ISSUE
>  BUT I AM WONDERING UNDER THE SLOT DRILL CHOICE IN ROUT WHICH METHOD IS
>  THE BEST FOR CREATING SMALL HOLE SLOTS. IT SEEMS WHETHER WE CHOOSE
>  SEQUENTIAL, ALTERNATING, OR MIDPOINT WE ARE GETTING SOME DEFORMITY.  IF
>  YOU HAVE ANY SUGGESTIONS IT WOULD BE GREATLY APPRECIATED.
>
>                                          THANK YOU,
>                                          JIM HENDERSON
>                                          COLONIAL CIRCUITS, INC.
>                                          540/752-5511
>                                          [log in to unmask]
>
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