[Jewelry making - Article 00028] - Re: [Orchid] Finding the centre of circle

[Dan Woodard]

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    I've had great luck with a draftsman's circle gauge, just a template
    with circular cutouts just the size of your discs. The face of the
    gauge may say something about "pencil allowance". This means the
    gauge's hole is just a touch bigger for accuracy of the rendering of
    the circle or arc needed. There needs to be marks at the 12, 3, 6,
    and 9 o'clock, indicating the line of diameter both horizontally and
    vertically. 

    Use some double-stick tape to hold the discs down, then lay the gauge
    over the discs, using the diameter lines with a small metal
    straightedge to make a cross at the center. Then punch and drill. 

Dan Woodard
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