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To center an array of segments that does not have a center
hole option, use a square to locate each end equidistant from
the center of the template holder. The metric scale on the
template holder is easiest for this.
A mortise and tenon 1/8” larger or smaller than the chart
can be made using one circle end piece and one triangle end
piece. Center the combination of segments using this mea-
suring method since the centering holes will be off by 1/8”.
The three steps in the mortise slot allow three
widths of mortise. Use the lowest step when you
need a perfect fit side-to-side such as for through
mortise and tenon. Use the second or third step
if you prefer a little side-to-side adjustability. This
can sometimes be helpful during glue-up. Us-
ing the third step also allows room to wedge the
tenon.
