229 lines
7.7 KiB
OpenSCAD
229 lines
7.7 KiB
OpenSCAD
$fn = 72;
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include <keyboard.scad>
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module keyboard_base_plate(pcb_dimensions, pcb_screw_holes, switch_z_range) {
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pcb_width = pcb_dimensions[0];
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pcb_length = pcb_dimensions[1];
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pcb_height = pcb_dimensions[2];
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switch_z_min = switch_z_range[0];
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switch_z_max = switch_z_range[1];
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pcb_clearance_edge = 1.0;
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pcb_clearance_bottom = -switch_z_min - pcb_height + 0.5;
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pcb_screw_diameter = 2.5;
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pcb_screw_hole_diameter = 2.5;
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pcb_screw_height = 3.0;
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thickness = 1.75;
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corner_radius = 0.2;
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case_color = [0.5, 0.5, 0.5, 1.0];
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wall_width = pcb_width + 2 * (pcb_clearance_edge + thickness) - 2 * corner_radius;
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wall_length = pcb_length + 2 * (pcb_clearance_edge + thickness) - 2 * corner_radius;
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wall_height = pcb_screw_height + pcb_height + switch_z_max;
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bottom_width = 2 * (pcb_clearance_edge) + pcb_width;
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bottom_length = 2 * (pcb_clearance_edge) + pcb_length;
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bottom_height = thickness;
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module round_corner(rotation) {
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color(case_color)
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rotate(rotation)
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rotate_extrude(angle=90) {
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intersection() {
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circle(r=corner_radius);
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square(corner_radius*2);
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}
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}
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}
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module round_edge(rotation, length) {
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color(case_color)
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rotate(rotation)
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linear_extrude(length)
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intersection() {
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circle(r=corner_radius);
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square(corner_radius*2);
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}
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}
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module panel(dimensions) {
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color(case_color)
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linear_extrude(dimensions[2])
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square([dimensions[0], dimensions[1]], false);
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}
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module wall_corner(rotation, radius, length) {
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color(case_color)
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rotate(rotation)
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linear_extrude(length)
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intersection() {
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circle(r=radius);
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square([radius, radius], false);
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}
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}
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module screw_post(h, d) {
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diameter_outer = 3 * d;
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diameter_inner = d;
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color(case_color)
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difference() {
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cylinder(h=h, r1 = (diameter_outer / 2.0) * 1.5);
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cylinder(h=h, r = diameter_inner / 2.0);
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}
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}
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module ridges(width, height) {
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horizontal = [
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(bottom_length / 3),
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(bottom_length / 3) * 2
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];
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vertical = [
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(bottom_width / 3),
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(bottom_width / 3) * 2
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];
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for (y = horizontal) {
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translate([0 - pcb_clearance_edge, y, 0])
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panel([bottom_width, width, height]);
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}
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for (x = vertical) {
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translate([x, 0 - pcb_clearance_edge, 0])
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panel([width, bottom_length, height]);
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}
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}
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/* Upper wall */
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translate([-pcb_clearance_edge - thickness + corner_radius,
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pcb_clearance_edge + pcb_length,
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-thickness + corner_radius])
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panel([wall_width, thickness, wall_height + thickness - corner_radius]);
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/* Right wall */
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translate([ pcb_clearance_edge + pcb_width,
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-pcb_clearance_edge - thickness + corner_radius,
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-thickness + corner_radius])
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panel([thickness, wall_length, wall_height + thickness - corner_radius]);
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/* Lower wall */
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translate([-pcb_clearance_edge - thickness + corner_radius,
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-pcb_clearance_edge - thickness,
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-thickness + corner_radius])
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panel([wall_width, thickness, wall_height + thickness - corner_radius]);
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/* Left wall */
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translate([-pcb_clearance_edge - thickness,
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-pcb_clearance_edge - thickness + corner_radius,
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-thickness + corner_radius])
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panel([thickness, wall_length, wall_height + thickness - corner_radius]);
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/* Upper right wall corner */
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translate([pcb_clearance_edge + thickness + pcb_width - corner_radius,
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pcb_clearance_edge + thickness + pcb_length - corner_radius,
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-thickness + corner_radius])
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wall_corner([0, 0, 0],
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corner_radius,
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wall_height + thickness - corner_radius);
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/* Lower right wall corner */
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translate([ pcb_clearance_edge + thickness + pcb_width - corner_radius,
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-pcb_clearance_edge - thickness + corner_radius,
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-thickness + corner_radius])
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wall_corner([0, 0, 270],
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corner_radius,
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wall_height + thickness - corner_radius);
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/* Lower left wall corner */
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translate([-pcb_clearance_edge - thickness + corner_radius,
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-pcb_clearance_edge - thickness + corner_radius,
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-thickness + corner_radius])
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wall_corner([0, 0, 180],
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corner_radius,
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wall_height + thickness - corner_radius);
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/* Upper left wall corner */
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translate([-pcb_clearance_edge - thickness + corner_radius,
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pcb_clearance_edge + pcb_length + thickness - corner_radius,
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-thickness + corner_radius])
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wall_corner([0, 0, 90],
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corner_radius,
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wall_height + thickness - corner_radius);
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/* Bottom plate */
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translate([-pcb_clearance_edge - thickness + corner_radius,
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-pcb_clearance_edge - thickness + corner_radius,
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-thickness])
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panel([bottom_width + 2 * thickness - 2 * corner_radius,
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bottom_length + 2 * thickness - 2 * corner_radius,
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thickness]);
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/* Upper edge */
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translate([-pcb_clearance_edge - thickness + corner_radius,
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pcb_clearance_edge + thickness + pcb_length - corner_radius,
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-thickness + corner_radius])
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round_edge([0, 90, 0], wall_width);
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/* Right edge */
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translate([ pcb_clearance_edge + thickness + pcb_width - corner_radius,
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-pcb_clearance_edge - thickness + corner_radius,
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-thickness + corner_radius])
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round_edge([270, 0, 0], wall_length);
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/* Lower edge */
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translate([-pcb_clearance_edge - thickness + corner_radius,
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-pcb_clearance_edge - thickness + corner_radius,
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-thickness + corner_radius])
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round_edge([90, 180, 90], wall_width);
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/* Left edge */
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translate([-pcb_clearance_edge - thickness + corner_radius,
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-pcb_clearance_edge - thickness + corner_radius,
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-thickness + corner_radius])
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round_edge([270, 90, 0], wall_length);
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/* Upper right corner */
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translate([pcb_clearance_edge + thickness + pcb_width - corner_radius,
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pcb_clearance_edge + thickness + pcb_length - corner_radius,
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-thickness + corner_radius])
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round_corner([90, 90, 90]);
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/* Lower right corner */
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translate([ pcb_clearance_edge + thickness + pcb_width - corner_radius,
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-pcb_clearance_edge - thickness + corner_radius,
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-thickness + corner_radius])
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round_corner([180, 90, 90]);
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/* Lower left corner */
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translate([-pcb_clearance_edge - thickness + corner_radius,
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-pcb_clearance_edge - thickness + corner_radius,
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-thickness + corner_radius])
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round_corner([-90, 90, 90]);
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/* Upper left corner */
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translate([-pcb_clearance_edge - thickness + corner_radius,
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pcb_clearance_edge + thickness + pcb_length - corner_radius,
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-thickness + corner_radius])
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round_corner([0, 90, 90]);
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/* Screw holes */
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for (screw_hole = pcb_screw_holes) {
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translate([screw_hole[0], screw_hole[1], 0])
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screw_post(pcb_screw_height,
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pcb_screw_diameter);
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}
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/* Ridges (for rigidity!) */
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ridges(thickness * 2, pcb_clearance_bottom / 2);
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}
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keyboard_base_plate([keyboard_pcb_width, keyboard_pcb_length, keyboard_pcb_height],
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keyboard_pcb_screw_holes,
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[-keyboard_switch_leg_length, keyboard_switch_height]);
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