radiation_sign.scad

radiation_sign(10, $fn=770);

module radiation_sign(h=2) {
    linear_extrude(height=h)
        radiation_sign_2d();
}

module radiation_sign_2d() {
    circle(20);
    rotate([0,0,90]) radiation_sign_sector();
    rotate([0,0,90+120]) radiation_sign_sector();
    rotate([0,0,90+240]) radiation_sign_sector();
}

module radiation_sign_sector() {
    intersection() {
        square(100);
        rotate([0,0,30]) square(100);
        difference() {
            circle(100);
            circle(30);
        }
    }
}