module standoff(){
    difference(){
        cylinder(h=125,r=10);
    }
}

module structure(){
    translate([0,0,3]){
        cube([150,125,6],true);
    }
    translate([-65,-50,6]){
        standoff();
    }
    translate([65,-50,6]){
        standoff();
    }
    translate([65,50,6]){
        standoff();
    }
    translate([-65,50,6]){
        standoff();
    }
}


difference(){
    structure();
    translate([65,50,-2]){
            cylinder(h=145,r=7);
    }
    
}
//scale([.1,.1,.1]){
//}