Funnel with cap

$fn=90;

difference() {
union() {
cylinder(80, r1=50, r2=0);
cylinder(100, 11, 11);
difference() {
translate([0,-48,0]) cylinder(1, r=15);
translate([0,-48,-2]) cylinder(4, r=10);
}

difference() {
cylinder(80, r=18);
translate([0,0,80-11*8/5]) cylinder(90, r=17);
}
}
union() {
translate([0,0,-1.6]) cylinder(80, r1=50, r2=0);
cylinder(130, 9, 9);
translate([-20,-15,80.8]) rotate([20,0,0]) cube(40);
}
}