https://pdvideosdaserste-a.akamaihd.net/int/2019/03/11/0f2d6ba6-a57f-4cd1-886b-e79a4c83c6d3/960-1_372992.mp4
module screwholes(diameter) {
        translate([26.3375,46.427]) scale([1/100, 1/100]) circle(d=diameter*100.0);
        translate([-26.3375,46.427]) scale([1/100, 1/100]) circle(d=diameter*100.0);
        translate([26.3375,-46.427]) scale([1/100, 1/100]) circle(d=diameter*100.0);
        translate([-26.3375,-46.427]) scale([1/100, 1/100]) circle(d=diameter*100.0);
}

module caseoutline() {
    square([66.0,106.0], center=true);
}

module pcboutline() {
    square([60.0,100.0], center=true);
}

module pcbinline() {
    square([56.0,96.0], center=true);
}

module pcbrfsection() {
    translate([-30,-50]) translate([0,36.4]) square([100.0,2.0]);
}

difference() {
    caseoutline();
    difference() { 
        pcbinline();
        pcbrfsection();
        screwholes(7.0);
    }
    screwholes(3.0);
}