Leo,
     I've seen problems with 274x polygon commands.  Many of the various
cad, cam, and plotting systems write/ read the polygons in slightly
different ways (I think it's often a problem of varying tolerances).  To
complicate matters, many systems don't "red flag"  polygon read errors well.
We used to have similar problems with arc commands in 274d format.  The
surest solution is to fax/ send artwork prints (or e-mail PDF "go-by's"
with your next order).
     We've seen plane layers written out in many ways: Negative Etch; Merge;
Copper Pour; Polygon Fill.  The use of polygon fill is increasing rapidly.

Good Luck,
Mark Hargreaves



        -----Original Message-----
        From:   Flick, Leo [SMTP:[log in to unmask]]
        Sent:   Wednesday, March 14, 2001 3:00 AM
        To:     [log in to unmask]
        Subject:        [TN] Split planes and rs274x

        Hi

        we recently had a problem with a few boards that contained a split
plane. the data i sent out was rs274x
        format created by a zuken redac visula system. the board house
during the artwork process lost the data for the split plane in the
translation. when the board came in the plane was there but the isolation
between the (2) signals was missing. they created a solid plane.

        The following was the explanation i received.

        JUST WANT TO KNOW IF ANYONE ELSE HAS EVER HEARD OF THIS PROBLEM.

        thank you in advance for your time

        leo j. flick
        [log in to unmask] <mailto:[log in to unmask]>

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