you can use
Tropic of Capricorn -23°
Tropic of Cancer 23°
//design latitude
for (j=[-60,-45,-23,0,23,45,60])
rotate ([0,90,0])
translate([0,0, sin (j)60])
torr(cos (j)(60+0.3) ,0,0);
you can use
Tropic of Capricorn -23°
Tropic of Cancer 23°
//design latitude
for (j=[-60,-45,-23,0,23,45,60])
rotate ([0,90,0])
translate([0,0, sin (j)*60])
torr(cos (j)*(60+0.3) ,0,0);
