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108 lines
3.9 KiB
OpenSCAD
108 lines
3.9 KiB
OpenSCAD
//
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// NopSCADlib Copyright Chris Palmer 2021
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// nop.head@gmail.com
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// hydraraptor.blogspot.com
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//
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// This file is part of NopSCADlib.
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//
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// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
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// GNU General Public License as published by the Free Software Foundation, either version 3 of
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// the License, or (at your option) any later version.
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//
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// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along with NopSCADlib.
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// If not, see <https://www.gnu.org/licenses/>.
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//
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//
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//! 7 Segment displays
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//
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include <../utils/core/core.scad>
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function 7_segment_size(type) = type[1]; //! Size of the body
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function 7_segment_digit_size(type) = type[2]; //! Size of the actual digit and segment width and angle
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function 7_segment_pins(type) = type[3]; //! [x, y] array of pins
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function 7_segment_pin_pitch(type) = type[4]; //! x and y pin pitches and pin diameter
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module 7_segment_digit(type, colour = grey(95), pin_length = 6.4) { //! Draw the specified 7 segment digit
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size = 7_segment_size(type);
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digit = 7_segment_digit_size(type);
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pins = 7_segment_pins(type);
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pin_pitch = 7_segment_pin_pitch(type);
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color(grey(95))
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linear_extrude(size.z)
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square([size.x - 0.1, size.y], center = true);
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color(grey(15))
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translate_z(size.z)
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cube([size.x - 0.1, size.y, eps], center = true);
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color(colour)
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translate_z(size.z)
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linear_extrude(2 * eps) {
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t = digit[2];
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a = digit[3];
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sq = [digit.x - 2 * t, (digit.y - 3 * t) / 2];
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multmatrix([ // Skew
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[1, tan(a), 0, 0],
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[0, 1, 0, 0],
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[0, 0, 1, 0],
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[0, 0, 0, 1]
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])
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difference() {
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square([digit.x, digit.y], center = true);
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for(y = [-1, 1], x = [-1, 1]) {
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translate([0, y * (t + sq.y) / 2])
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square(sq, center = true);
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translate([x * digit.x / 2, y * digit.y / 2])
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rotate(-45 * x * y) {
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square([10, t], center = true);
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square([t / 5, 10], center = true);
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}
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translate([x * (digit.x - t) / 2, 0])
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rotate(45) {
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square([t / 5, t * 2], center = true);
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square([t * 2, t / 5], center = true);
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translate([x * t / 2, -x * t / 2])
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square([t, t], center = true);
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}
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}
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}
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r = 1.25 * t / 2;
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translate([digit.x / 2 - r + digit.y / 2 * tan(a), -digit.y / 2 + r])
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circle(r);
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}
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color(silver)
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translate_z(-pin_length)
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linear_extrude(pin_length)
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for(x = [0 : 1 : pins.x - 1], y = [0 : 1 : pins.y - 1])
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translate([(x - (pins.x - 1) / 2) * pin_pitch.x, (y - (pins.y - 1) / 2) * pin_pitch.y])
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circle(d = pin_pitch[2], $fn = 16);
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}
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module 7_segment_digits(type, n, colour = grey(70), pin_length = 6.4, cutout = false) { //! Draw n digits side by side
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size = 7_segment_size(type);
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if(cutout)
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linear_extrude(100)
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square([n * size.x, size.y], center = true);
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else
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for(i = [0 : 1 : n - 1])
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translate([(i - (n - 1) / 2) * size.x, 0])
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7_segment_digit(type, colour, pin_length);
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}
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