|Construct a circle of the desired diameter and draw concentric
circles within it to subdivide it into ten rings of equal width.
If R is the radius of the net, the radius of the nth ring from the center is rn = nR/10.
Also divide the figure into 60-degree sectors as shown.
|For the highest possible accuracy, divide the nth ring in each
sector into n equal arcs. The angles a will be given by an =
60i/n, where i ranges from 1 to 6n. The second ring out is divided at 30
degree intervals (60/2), the third at 20 degree intervals (60/3), and so
However, a tolerably good construction is to bisect each sector (light blue lines). From each even numbered ring construct lines parallel to the sector boundaries (red lines).
|Construct the short diagonals of each box.|