difference ()
  {
cylinder(h=70, r1=15, r2=12, center=true, $fn=10);
      union();
      {
 #cylinder(h=140, r1=4, r2=4, center=true, $fn=100);
translate([0,0,32]) { #cylinder(h=6.5, r1=7.6, r2=7.6, center=true, $fn=6);   }     
  }
  }