NopSCADlib/vitamins/led.scad

//
// 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/>.
//

//
//! Standard domed through hole LEDs. Can specify colour and lead length.
//
include <../utils/core/core.scad>
use <../utils/rounded_cylinder.scad>

function led_diameter(type) = type[1]; //! Body diameter
function led_rim_dia(type)  = type[2]; //! Rim diameter
function led_rim_t(type)    = type[3]; //! Rim height
function led_height(type)   = type[4]; //! Body height
function led_pitch(type)    = type[5]; //! Lead pitch
function led_lead_t(type)   = type[6]; //! Lead thickness

function led_hole_radius(type) = led_diameter(type) / 2; //! Radius of panel hole to accept LED

module led(type, colour = "red", lead = 5) { //! Draw specified LED with desired colour and led length
    d = led_diameter(type);
    vitamin(str("led(", type[0], arg(colour, "red"), "): LED ", d, " mm ", colour));

    color(colour) {
        rotate_extrude()
            rounded_corner(r = d / 2, h = led_height(type), r2 =  d / 2);

        linear_extrude(led_rim_t(type))
            difference() {
                circle(d = led_rim_dia(type));

                translate([d / 2 + eps, -5])
                    square(10);
            }
    }
    color("silver")
        for(side = [-1, 1], len = lead - (lead < 3 ? 0 : side))
            translate([side * led_pitch(type) / 2, 0, -len / 2])
                vflip()
                    cube([led_lead_t(type), led_lead_t(type), len], center = true);
}