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group() {
group() {
intersection() {
difference() {
union() {
cube(size = [30, 30, 30], center = true);
multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, -25], [0, 0, 0, 1]]) {
cube(size = [15, 15, 50], center = true);
}
}
union() {
cube(size = [50, 10, 10], center = true);
cube(size = [10, 50, 10], center = true);
cube(size = [10, 10, 50], center = true);
}
}
multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 5], [0, 0, 0, 1]]) {
cylinder($fn = 0, $fa = 12, $fs = 2, h = 50, r1 = 20, r2 = 5, center = true);
}
}
}
}
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