Next, make seven horizontal lines which are parallel and equidistant, distance = a, from bottom to top.
CONSTRUCTION 2.
Next, place a straight edge on the intersection point of the two center lines at a 45 degree angle to each existing center line and draw this diagonal line. And make another diagonal line through the same intersecting center lines perpendicular to the last diagonal line. Your drawing should look like the following drawing.
CONSTRUCTION 3.
With your computer drawing software you can copy, paste to a new image, rotate new image 45 degrees, copy and paste to your first image to get the following construction.
The other six main diagonal lines are constructed parallel and equidistant, same distance = a, apart as the vertical set, to the first diagonal line. Likewise, make another six minor diagonal lines However, in both cases, construct parallel lines from the center diagonal line out to get the distance from line to parallel line equal to a.
CONSTRUCTION 4.
Click on the last drawing or here to see the next stage construction of Castel Del Monte.
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