Try just setting a rule of no copper closer than 20-30 thou to the board
edge..
Works for me....

-----Original Message-----
From: [log in to unmask] <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Date: 30 July 1998 16:58
Subject: [TN] Scoring


>     I am looking for input as to what others use as a rule for cutting
>     back copper on artworks, to avoid being cut during the v-score
>     operation. It seems that whatever I use, no matter how many times I
>     double-check my numbers, we still occasionally get copper being
>     exposed during scoring. If there is a better way than I a using, it
>     would be appreciated. I am currently using a formula of the depth of
>     the score ( not the web ) multiplied by the tangent of the given
>     angle. Ex : a depth of .021 X 30 degree tangent (,5774) tells me to
>     make sure that we are clear at least .012 from the edge of the board.
>     If I'm calculating wrong, please let me know.
>
>                                 Thanks
>
>                                 Ernie Smith    [log in to unmask]
>

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