$fa = 1;
$fs = 0.4;

cube([60,20,10],center=true);

translate([5,0,10])
    cube([30,20,10],center=true);

translate([-20,-12,0])
    rotate([90,0,10])
    cylinder(h=3,r=8);
    
translate([-20, 15,0])
    rotate([90,0,10])
    cylinder(h=3,r=8);
 
translate([20,-12,0])
    rotate([90,0,0])
    cylinder(h=3,r=8);
    
translate([20, 15,0])
    rotate([90,0,0])
    cylinder(h=3,r=8);
    
translate([-20, 0, 0])
    rotate([90, 0, 0])
    cylinder(h=27, r=2.5, center=true);
    
translate([20, 0, 0])
    rotate([90, 0, 0])
    cylinder(h=27, r=2.5, center=true);