NopSCADlib/vitamins/mains_socket.scad

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//
// NopSCADlib Copyright Chris Palmer 2018
// nop.head@gmail.com
// hydraraptor.blogspot.com
//
// This file is part of NopSCADlib.
//
// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
// GNU General Public License as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along with NopSCADlib.
// If not, see <https://www.gnu.org/licenses/>.
//
//
//! UK 13A sockets at the moment.
//
include <../core.scad>
include <ring_terminals.scad>
use <insert.scad>
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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(eps)
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face_plate(type);
linear_extrude(height)
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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 - mains_socket_t(type))
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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)
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screw_countersink(screw, drilled = false);
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}
}
}