// Jack-spacing test coupon, Rev E (FIE: all three 3-prong plug pins are 4 mm)
// -------------------------------------------------------------------
// Print this FIRST, mount your actual jacks in it, and plug a real body
// cord in before printing the enclosure. Adjust the two bushing
// diameters below to the jacks you actually bought (measure the
// threaded bushing, add ~0.2 mm print clearance).
//
// Groups match Doc 02 Rev E: B in the middle, A 15 mm to one side,
// C 20 mm to the other. J1 row at y=8, J2 row at y=24 (x-offset 8 mm
// on purpose, mirroring the enclosure).

d_bush_4mm = 8.2;   // panel hole for a 4 mm banana jack (A and C lines)
d_bush_3mm = 8.2;   // B jack is ALSO 4 mm (FIE m. rules) - kept as a variable in case your jack differs
plate_w = 84; plate_h = 32; plate_t = 3;

module socket_group(xa, xb, xc, y) {
    translate([xa, y]) circle(d = d_bush_4mm, $fn = 64);  // A
    translate([xb, y]) circle(d = d_bush_3mm, $fn = 64);  // B
    translate([xc, y]) circle(d = d_bush_4mm, $fn = 64);  // C
}

linear_extrude(plate_t)
difference() {
    square([plate_w, plate_h]);
    socket_group(26, 41, 61, 8);    // J1 (top-edge socket)
    socket_group(34, 49, 69, 24);   // J2 (front-face socket)
}