$fn=60;

include <BOSL2/std.scad>



difference() {
    union() {
        cuboid([150,10,130], rounding=2);
        zcyl(d=32, l=130, rounding=2);
    }
    translate([-17,0,-42.5]) cuboid([4,15,32], rounding=2);
    translate([17,0,-42.5]) cuboid([4,15,32], rounding=2);
    translate([-17,0,42.5]) cuboid([4,15,32], rounding=2);
    translate([17,0,42.5]) cuboid([4,15,32], rounding=2);
    zcyl(d=21, l=130, rounding=-2);
    translate([0,0,20]) ycyl(l=32, d=4, rounding=-2);
}