module MIDI_Stencil() {
    hull() {
        cylinder(d=20, h=3, $fn=64);
    
        translate([-11,0,0])
        cylinder(d=8, h=3, $fn=64);
        
        translate([11, 0,0])
        cylinder(d=8, h=3, $fn=64);
    }
    
    cylinder(d=15, h=10, $fn=64);
    
    translate([-11, 0, 0])
    cylinder(d=1.5, h=10, $fn=64);
    translate([11, 0, 0])
    cylinder(d=1.5, h=10, $fn=64);
}

module Jack_65_mm_Socket() {
    cylinder(d=15, h=3, $fn=64);
    cylinder(d=9, h=10, $fn=64);
}




thick=3;

difference() {
    translate([ 0, 0, 20-1 ])
    cube([100, 25+2*thick, 40], center=true);
    
    translate([ 0, 0, 20+thick ])
    cube([100-2*thick, 25, 40], center=true);
    
    translate([30, 0, -2])
    MIDI_Stencil();

    translate([-30, 0, -2])
    Jack_65_mm_Socket();
    
    translate([0, 0, -2])
    Jack_65_mm_Socket();
}


translate([-30, -8, 40-1])
difference()
{
    union() {
        cylinder(d=15, h=15, $fn=64);
        translate([0,0,15])
        intersection() {
            cylinder(d=20, h=10, $fn=64);
            hull() {
                cube([30, 15, 1], center=true);
                translate([0,0,5])
                cube([10, 15, 1], center=true);
            }
        }

        translate([0, 8, -thick/2])
        cube([40, 30, thick], center=true);
    }
    cylinder(d=5, h=100, $fn=64);
    cube([7, 20, 70], center=true);
}