$fn=100;

difference(){
    minkowski() {
      translate([0,0,0]) rotate([-90,0,0]) cylinder(h=48, r=8, center=true);
      cylinder(r=1.5,h=1);
    }
  translate([0,-24.25,0]) rotate([0,0,0]) cylinder(h=50, d=3.8, center=true);
  translate([0,24.25,0]) rotate([0,0,0]) cylinder(h=50, d=3.8, center=true);
}