NopSCADlib/vitamins/display.scad

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2019-06-08 17:10:47 -04:00
//
// 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/>.
//
//
//! LCD dispays.
//
include <../utils/core/core.scad>
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use <pcb.scad>
use <screw.scad>
function display_width(type) = type[2]; //! Width of the metal part
function display_height(type) = type[3]; //! Depth of the metal part
function display_thickness(type) = type[4]; //! Height of the metal part
function display_pcb(type) = type[5]; //! PCB mounted on the back
function display_pcb_offset(type) = type[6]; //! 3D offset of the PCB centre
function display_aperture(type) = type[7]; //! Size of the aperture including its depth
function display_touch_screen(type) = type[8]; //! Touch screen position and size
function display_threads(type) = type[9]; //! Length that studs protrude from the PCB holes
function display_ribbon(type) = type[10]; //! Keep out region for ribbon cable
function display_ts_thickness(type) = let(ts = display_touch_screen(type)) ts ? ts[1].z : 0; //! Touch screen thickness or 0
function display_depth(type) = display_ts_thickness(type) + display_thickness(type) + display_pcb_offset(type).z + pcb_thickness(display_pcb(type)); //! Total thickness including touch screen and PCB
module display_aperture(type, clearance, clear_pcb = false) { //! Make aperture cutout
aperture = display_aperture(type);
ts = display_touch_screen(type);
pcb = display_pcb(type);
rb = display_ribbon(type);
translate([aperture[0].x, aperture[0].y, -10])
cube([aperture[1].x - aperture[0].x, aperture[1].y - aperture[0].y, 20]);
if(ts)
translate([ts[0].x - clearance, ts[0].y - clearance, -clearance])
cube([ts[1].x - ts[0].x + 2 * clearance, ts[1].y - ts[0].y + 2 * clearance, ts[1].z + clearance + eps]);
if(rb)
translate([rb[0].x, rb[0].y,0])
cube([rb[1].x - rb[0].x, rb[1].y - rb[0].y, ts[1].z + display_depth(type) + 2]);
if(clear_pcb)
translate([display_pcb_offset(type).x, display_pcb_offset(type).y, display_depth(type) / 2 + 0.5 + display_ts_thickness(type)])
cube([pcb_length(pcb) + 2 * clearance, pcb_width(pcb) + 2 * clearance, display_depth(type) + 1], center = true);
else
translate_z(display_depth(type) / 2 + 0.5)
cube([display_width(type) + 2 * clearance, display_height(type) + 2 * clearance, display_depth(type) + 1], center = true);
}
module display(type) { //! Draw specified display
vitamin(str("display(", type[0], "): ", type[1]));
w = display_width(type);
h = display_height(type);
t = display_thickness(type);
pcb = display_pcb(type);
gap = display_pcb_offset(type).z;
aperture = display_aperture(type);
ts = display_touch_screen(type);
not_on_bom() {
translate_z(display_ts_thickness(type)) {
difference() {
color("silver")
rounded_rectangle([w, h, t], 0.5, center = false);
color("black")
translate([aperture[0].x, aperture[0].y, - eps])
cube([aperture[1].x - aperture[0].x, aperture[1].y - aperture[0].y, aperture[1].z]);
}
if(gap)
color("black")
translate_z(t + gap / 2)
cube([w - 1, h - 1, gap], center = true);
translate([0, 0, display_thickness(type)] + display_pcb_offset(type)) {
pcb(pcb);
if(display_threads(type))
pcb_screw_positions(pcb)
vflip()
screw(pcb_screw(pcb), pcb_thickness(pcb) + display_threads(type));
}
}
if(ts)
color("white", 0.15)
translate([ts[0].x, ts[0].y, 0])
cube([ts[1].x - ts[0].x, ts[1].y - ts[0].y, ts[1].z - eps]);
}
}