With circles and spheres. I have noticed that is good to calculate the right "lenght" for the base to flow, following the diameter of the sphere or the circle.
For, Pi = 3,141593;
P (perimeter; or C, circumference) = 2 Pi R;
R = P / 2Pi = P / 6,2831;
P = Pi D (3,141593 x D);
Example: for 10 in diameter; P = Pi D = 3,1415 x 10 = 31,415, so the length of base to flow = 31, 415.
I believe that can help sometimes.
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