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group() {
difference() {
sphere($fn = 0, $fa = 12, $fs = 2, r = 10);
% cylinder($fn = 0, $fa = 12, $fs = 2, h = 30, r1 = 6, r2 = 6, center = true);
}
% group() {
cube(size = [25, 6, 3], center = true);
}
% multmatrix([[1, 0, 0, 0], [0, 1, 0, -9], [0, 0, 1, 0], [0, 0, 0, 1]]) {
difference() {
color([0, 0.501961, 0, 1]) {
cube(size = [10, 4, 10], center = true);
}
color([1, 0, 0, 1]) {
multmatrix([[1, 0, 0, 0], [0, 1, 0, -2], [0, 0, 1, 0], [0, 0, 0, 1]]) {
sphere($fn = 0, $fa = 12, $fs = 2, r = 3);
}
}
}
}
multmatrix([[1, 0, 0, 25], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
minkowski(convexity = 0) {
% cube(size = [10, 10, 10], center = true);
cube(size = [5, 5, 5], center = true);
}
}
}
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