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Radius = 0.5;
Hoehe = 1.3;
Phase = 0.1;
Basisdicke = 0.2;
Basisextra = 0.2;
Bohrung = 0.25;
difference() {
translate([0,0,-Hoehe/2])rotate_extrude($fn = 100) {
polygon(points = [
[0,-Basisdicke], [Radius+Basisextra,-Basisdicke], [Radius+Basisextra,0], [Radius,0], [Radius,0], [Radius, Hoehe - Phase], [Radius - Phase, Hoehe], [0, Hoehe]
]);
};
rotate([0,90,0])cylinder(h = 4*Radius, r = Bohrung, center = true, $fn = 100);
translate([Radius,-Radius-Basisextra,-Hoehe/2-2*Basisdicke])cube(size = 2*(Radius+Basisextra+Basisdicke));
}
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