$fn=50;

//Barrel
difference() {
    rotate([90,0,0])
    cylinder(h=28,d1=5,d2=5, center=true);
    
        translate([0,-29/2,0])
        rotate([90,0,0])
        cylinder(h=10,d1=3,d2=3, center=true);
}


//head
union(){
    difference(){
        hull() {

             rotate([90,0,0]){
                translate([0,0,-25/2])
                cylinder(h=2,d1=5,d2=5, center=true);
             }
             
            translate([0,29/2+19/2,0]){
                rotate([0,90,0])
                cylinder(h=2,d=19, center=true);
            }
        }
        translate([0,20,2.5])
        rotate([0,90,0])
        cylinder(h=10, d=7, center=true);
        translate([0,28,2.5])
        rotate([0,90,0])
        cylinder(h=10, d=7, center=true);
        translate([0,20,-2.5])
        rotate([0,90,0])
        cylinder(h=10, d=7, center=true);
        translate([0,28,-2.5])
        rotate([0,90,0])
        cylinder(h=10, d=7, center=true);

    }
    translate([0,24,0])
    rotate([90,0,0])
    cylinder(h=18, d1=2, d2=4.7, center=true);
}


//keyway
difference(){
    translate([0,(-28/2)+4/2,-5])
        cube([2,3,7], center=true);
    
    translate([0,(-28/2),-3.5])
        cube([5,5,1], center=true);
    
      translate([0,(-28/2),-6])
        cube([5,5,2], center=true);
}