cubesize=26;


module shp() {
    translate([0,0,22.62])
    rotate([90,140,90])
    ClosePoints(shape);
}


module extrusion() {

    translate([0,7,0])
    rotate([90,0,0])
    linear_extrude(height=20)
    projection(cut = false)
    rotate([-90,0,0])
    intersection() {
    shp();
    cube([cubesize+100,cubesize,cubesize+100], center=true);
    }
}

module cleaner() {
    difference() {
    hull() {
    shp();
    translate([0,0,10]) shp();
    }
    shp();
    }
}

difference() {
union() {
shp();
extrusion();
}
cleaner();
}