include <../core.scad>

include <ring_terminals.scad>

use <insert.scad>

function mains_socket_width(type) = type[1]; //! Width at the base

function mains_socket_depth(type) = type[2]; //! Depth at the base

function mains_socket_top_w(type) = type[3]; //! Width at the top, might be tapered

function mains_socket_top_d(type) = type[4]; //! Depth at the top, might be tapered

function mains_socket_corner(type) = type[5]; //! Corner radius

function mains_socket_height(type) = type[6]; //! Height

function mains_socket_t(type) = type[7]; //! Plastic thickness

function mains_socket_offset(type) = type[8]; //! Offset of the socket from the centre

function mains_socket_pitch(type) = type[9]; //! Screw hole pitch

function mains_socket_screw(type) = M3_cs_cap_screw; //! Screw type

earth = M3_ringterm;

earth_screw = ringterm_screw(earth);

insert_wall = 3;

function mains_socket_insert_boss(type) = 2 * (insert_hole_radius(screw_insert(mains_socket_screw(type))) + insert_wall);

module face_plate(type)

rounded_square([mains_socket_width(type), mains_socket_depth(type)], mains_socket_corner(type));

module mains_socket_hole_positions(type) //! Position children at the screw holes

for(side = [-1, 1])

translate([side * mains_socket_pitch(type) / 2, 0])

children();

module mains_socket_earth_position(type) { //! Position of earth terminal for DiBond panel

inset = mains_socket_t(type) + washer_diameter(screw_washer(earth_screw)) / 2 + 1;

translate([-mains_socket_width(type) / 2 + inset, -mains_socket_depth(type) / 2 + inset])

children();

}

module mains_socket_holes(type, h = 0) { //! Panel cutout

mains_socket_hole_positions(type)

drill(screw_clearance_radius(mains_socket_screw(type)), h);

extrude_if(h)

offset(cnc_bit_r) offset(-cnc_bit_r) difference() {

offset(-7) face_plate(type);

for(side = [-1, 1])

hull()

for(x = [1, 2])

translate([side * mains_socket_pitch(type) / x, 0])

circle(4.5);

mains_socket_earth_position(type)

circle(d = washer_diameter(screw_washer(earth_screw)) + 2);

}

mains_socket_earth_position(type)

drill(screw_clearance_radius(earth_screw), h);

}

module mains_socket(type) { //! Draw specified 13A socket

offset = mains_socket_offset(type);

screw = mains_socket_screw(type);

height = mains_socket_height(type);

vitamin(str("mains_socket(", type[0], "): Mains socket 13A", offset.x || offset.y ? ", switched" : ""));

color("white") render() difference() {

hull() {

linear_extrude(height = eps)

face_plate(type);

linear_extrude(height = height)

offset(-(mains_socket_width(type) - mains_socket_top_w(type)) / 2)

face_plate(type);

}

// Holes for pins

translate([offset.x, offset.y, mains_socket_height(type)]) {

for(side = [-1, 1])

translate([side * 11.1, -11.1])

cube([7, 4.5, 8], center = true);

translate([0, 11.1])

cube([4.5, 8.5, 8], center = true);

}

// Hollow out the back

difference() {

linear_extrude(height = height - mains_socket_t(type))

offset(-mains_socket_t(type))

face_plate(type);

cube(50, center = true);

}

// Screw holes

mains_socket_hole_positions(type) {

cylinder(r = screw_clearance_radius(screw), h = 100, center = true);

translate_z(height)

screw_countersink(screw);

}

}

}