NopSCADlib/vitamins/button.scad
2019-06-08 22:10:47 +01:00

75 lines
3.2 KiB
OpenSCAD

//
// 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/>.
//
//
//! PCB mounted buttons. Can optionally have a coloured cap
//
include <../core.scad>
use <../utils/rounded_cylinder.scad>
function square_button_width(type) = type[1]; //! Width and depth of the base
function square_button_height(type) = type[2]; //! Height of the base
function square_button_wall(type) = type[3]; //! Offset of the metal part
function square_button_rivit(type) = type[4]; //! Size of the corner rivets
function square_button_d(type) = type[5]; //! Button diameter
function square_button_h(type) = type[6]; //! Height of the button above the PCB
function square_button_cap_flange_d(type) = type[7]; //! Diameter of the flange of the cap
function square_button_cap_d(type) = type[8]; //! Diameter of the body of the cap
function square_button_cap_h(type) = type[9]; //! Height of the cap including the stem
function square_button_cap_stem(type) = type[10]; //! Length of the cap stem
function square_button_cap_flange_h(type) = type[11]; //! Height of the cap flange
module square_button(type, colour = "yellow") { //! Draw square button with specified cap colour if it has a cap
w = square_button_width(type);
flange_d = square_button_cap_flange_d(type);
vitamin(str("square_button(", type[0], flange_d ? str(", \"", colour, "\"") : "", "): Square button ", w, "mm",
flange_d ? str(" with ", colour, " cap") : ""));
h = square_button_height(type);
wall = square_button_wall(type);
rivit = square_button_rivit(type);
pitch = (w/ 2 - wall - rivit * 0.75);
stem = square_button_cap_stem(type);
color(grey20) {
rounded_rectangle([w, w, h - 0.5], r = wall, center = false);
for(x = [-1, 1], y = [-1, 1])
translate([x * pitch, y * pitch])
cylinder(d = rivit, h = h);
cylinder(d = square_button_d(type), h = square_button_h(type));
}
color("silver")
translate_z(h - 0.5)
rounded_rectangle([w - 2 * wall, w - 2 * wall, 0.2], r = wall, center = true);
if(flange_d)
translate_z(square_button_h(type))
color(colour) rotate_extrude() {
square([square_button_d(type) / 2, stem]);
translate([0, stem]) {
square([flange_d / 2, square_button_cap_flange_h(type)]);
rounded_corner(r = square_button_cap_d(type) / 2, h = square_button_cap_h(type) - stem, r2 = 0.5);
}
}
}