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group() {
group() {
multmatrix([[1, 0, 0, -25], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
group() {
minkowski(convexity = 0) {
difference() {
square(size = [10, 10], center = false);
multmatrix([[1, 0, 0, 2], [0, 1, 0, 2], [0, 0, 1, 0], [0, 0, 0, 1]]) {
square(size = [6, 6], center = false);
}
}
circle($fn = 0, $fa = 12, $fs = 1, r = 2);
}
}
}
multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
group() {
minkowski(convexity = 0) {
difference() {
square(size = [10, 10], center = false);
square(size = [5, 5], center = false);
}
circle($fn = 0, $fa = 12, $fs = 1, r = 5);
}
}
}
multmatrix([[1, 0, 0, 25], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
group() {
minkowski(convexity = 0) {
square(size = [10, 10], center = false);
circle($fn = 0, $fa = 12, $fs = 1, r = 5);
}
}
}
multmatrix([[1, 0, 0, -25], [0, 1, 0, 25], [0, 0, 1, 0], [0, 0, 0, 1]]) {
group() {
minkowski(convexity = 0) {
difference() {
cube(size = [10, 10, 5], center = false);
multmatrix([[1, 0, 0, 2], [0, 1, 0, 2], [0, 0, 1, -2], [0, 0, 0, 1]]) {
cube(size = [6, 6, 10], center = false);
}
}
cylinder($fn = 0, $fa = 12, $fs = 1, h = 1, r1 = 2, r2 = 2, center = false);
}
}
}
multmatrix([[1, 0, 0, 0], [0, 1, 0, 25], [0, 0, 1, 0], [0, 0, 0, 1]]) {
group() {
minkowski(convexity = 0) {
difference() {
cube(size = [10, 10, 5], center = false);
cube(size = [5, 5, 5], center = false);
}
cylinder($fn = 0, $fa = 12, $fs = 1, h = 5, r1 = 5, r2 = 5, center = false);
}
}
}
multmatrix([[1, 0, 0, 25], [0, 1, 0, 25], [0, 0, 1, 0], [0, 0, 0, 1]]) {
group() {
minkowski(convexity = 0) {
cube(size = [10, 10, 5], center = false);
cylinder($fn = 0, $fa = 12, $fs = 1, h = 5, r1 = 5, r2 = 5, center = false);
}
}
}
}}
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