r_lower=20;
r_greater=50;
axis=40;

module half_an_ellipsis(r,axis){
  intersection(){
    translate([0,max(r,axis)/2]) square(max(r,axis),center=true);
    scale([1,r/axis]) circle(d=axis);
  }
}

/*create a cutting surface of a handle
  each half-side is ellipsis round, but
  both halfs have unequal size
  The shape is similar to a raindrop
*/
module droplet(r_lower=20, r_greater=50, axis=40){
  half_an_ellipsis(r_greater, axis);
  rotate(180) half_an_ellipsis(r_lower, axis);
}

//droplet();

very_small=0.01;
distance=80;

union(){

hull(){
  translate([distance/2,0,0]) rotate([0,0,90]) rotate([90,0,0]) linear_extrude(very_small) droplet(15,40,35);
  translate([-distance/2,0,0]) rotate([0,0,90]) rotate([90,0,0]) linear_extrude(very_small) droplet();
}

translate([-distance/2-8,0,-3])
rotate([0,-45,0])
for( angle=[0:45]) {
  translate([0,0,-r_lower/2]) rotate([0,angle,0]) rotate([0,0,90]) rotate([90,0,0]) linear_extrude(1) translate([0,r_lower/2]) droplet();
  }

translate([-distance/2-10,0,0]) rotate([90,0,0]) cylinder(d=axis,h=(r_lower+r_greater)/2,center=true);

 }