255 lines
8.2 KiB
OpenSCAD
255 lines
8.2 KiB
OpenSCAD
$fn = 72;
|
|
|
|
pcb_width = 257.175;
|
|
pcb_length = 95.250;
|
|
pcb_height = 1.600;
|
|
|
|
pcb_screw_holes = [
|
|
[ 4.7625, 85.7250],
|
|
[ 66.6750, 85.7250],
|
|
[161.9250, 85.7250],
|
|
[238.1250, 85.7250],
|
|
[ 61.9125, 47.6250],
|
|
[138.1125, 47.6250],
|
|
[214.3125, 47.6250],
|
|
[ 19.0500, 9.5250],
|
|
[123.8250, 9.5250],
|
|
[238.1250, 9.5250]
|
|
];
|
|
|
|
switch_leg_length = 3.30;
|
|
switch_height = 11.10;
|
|
|
|
module keyboard_base_plate(pcb_dimensions, pcb_screw_holes, switch_z_range) {
|
|
pcb_width = pcb_dimensions[0];
|
|
pcb_length = pcb_dimensions[1];
|
|
pcb_height = pcb_dimensions[2];
|
|
|
|
switch_z_min = switch_z_range[0];
|
|
switch_z_max = switch_z_range[1];
|
|
|
|
pcb_clearance_edge = 1.0;
|
|
pcb_clearance_bottom = -switch_z_min - pcb_height + 0.5;
|
|
|
|
pcb_screw_diameter = 1.5;
|
|
pcb_screw_hole_diameter = 1.5;
|
|
pcb_screw_height = 3.0;
|
|
|
|
thickness = 1.75;
|
|
corner_radius = 0.2;
|
|
|
|
case_color = [0.5, 0.5, 0.5, 1.0];
|
|
|
|
wall_width = pcb_width + 2 * (pcb_clearance_edge + thickness) - 2 * corner_radius;
|
|
wall_length = pcb_length + 2 * (pcb_clearance_edge + thickness) - 2 * corner_radius;
|
|
wall_height = pcb_screw_height + pcb_height + switch_z_max;
|
|
|
|
bottom_width = 2 * (pcb_clearance_edge) + pcb_width;
|
|
bottom_length = 2 * (pcb_clearance_edge) + pcb_length;
|
|
bottom_height = thickness;
|
|
|
|
module round_corner(translation, rotation) {
|
|
color(case_color)
|
|
translate(translation)
|
|
rotate(rotation)
|
|
rotate_extrude(angle=90) {
|
|
intersection() {
|
|
circle(r=corner_radius);
|
|
square(corner_radius*2);
|
|
}
|
|
}
|
|
}
|
|
|
|
module round_edge(translation, rotation, length) {
|
|
color(case_color)
|
|
translate(translation)
|
|
rotate(rotation)
|
|
linear_extrude(length)
|
|
intersection() {
|
|
circle(r=corner_radius);
|
|
square(corner_radius*2);
|
|
}
|
|
}
|
|
|
|
module panel(translation, dimensions) {
|
|
color(case_color)
|
|
translate(translation)
|
|
linear_extrude(dimensions[2])
|
|
square([dimensions[0], dimensions[1]], false);
|
|
}
|
|
|
|
module wall_corner(translation, rotation, radius, length) {
|
|
color(case_color)
|
|
translate(translation)
|
|
rotate(rotation)
|
|
linear_extrude(length)
|
|
intersection() {
|
|
circle(r=radius);
|
|
square([radius, radius], false);
|
|
}
|
|
}
|
|
|
|
module screw_post(translation, h, d) {
|
|
diameter_outer = 3 * d;
|
|
diameter_inner = d;
|
|
|
|
color(case_color)
|
|
translate(translation)
|
|
difference() {
|
|
cylinder(h=h, r1 = (diameter_outer / 2.0) * 1.5);
|
|
cylinder(h=h, r = diameter_inner / 2.0);
|
|
}
|
|
}
|
|
|
|
module ridges(width, height) {
|
|
horizontal = [
|
|
(bottom_length / 3),
|
|
(bottom_length / 3) * 2
|
|
];
|
|
|
|
vertical = [
|
|
(bottom_width / 3),
|
|
(bottom_width / 3) * 2
|
|
];
|
|
|
|
for (y = horizontal) {
|
|
panel([0 - pcb_clearance_edge, y, 0],
|
|
[bottom_width, width, height]);
|
|
}
|
|
|
|
for (x = vertical) {
|
|
panel([x, 0 - pcb_clearance_edge, 0],
|
|
[width, bottom_length, height]);
|
|
}
|
|
}
|
|
|
|
/* Upper wall */
|
|
panel([-pcb_clearance_edge - thickness + corner_radius,
|
|
pcb_clearance_edge + pcb_length,
|
|
-thickness + corner_radius],
|
|
[wall_width, thickness, wall_height + thickness - corner_radius]);
|
|
|
|
/* Right wall */
|
|
panel([ pcb_clearance_edge + pcb_width,
|
|
-pcb_clearance_edge - thickness + corner_radius,
|
|
-thickness + corner_radius],
|
|
[thickness, wall_length, wall_height + thickness - corner_radius]);
|
|
|
|
/* Lower wall */
|
|
panel([-pcb_clearance_edge - thickness + corner_radius,
|
|
-pcb_clearance_edge - thickness,
|
|
-thickness + corner_radius],
|
|
[wall_width, thickness, wall_height + thickness - corner_radius]);
|
|
|
|
/* Left wall */
|
|
panel([-pcb_clearance_edge - thickness,
|
|
-pcb_clearance_edge - thickness + corner_radius,
|
|
-thickness + corner_radius],
|
|
[thickness, wall_length, wall_height + thickness - corner_radius]);
|
|
|
|
/* Upper right wall corner */
|
|
wall_corner([pcb_clearance_edge + thickness + pcb_width - corner_radius,
|
|
pcb_clearance_edge + thickness + pcb_length - corner_radius,
|
|
-thickness + corner_radius],
|
|
[0, 0, 0],
|
|
corner_radius,
|
|
wall_height + thickness - corner_radius);
|
|
|
|
/* Lower right wall corner */
|
|
wall_corner([ pcb_clearance_edge + thickness + pcb_width - corner_radius,
|
|
-pcb_clearance_edge - thickness + corner_radius,
|
|
-thickness + corner_radius],
|
|
[0, 0, 270],
|
|
corner_radius,
|
|
wall_height + thickness - corner_radius);
|
|
|
|
/* Lower left wall corner */
|
|
wall_corner([-pcb_clearance_edge - thickness + corner_radius,
|
|
-pcb_clearance_edge - thickness + corner_radius,
|
|
-thickness + corner_radius],
|
|
[0, 0, 180],
|
|
corner_radius,
|
|
wall_height + thickness - corner_radius);
|
|
|
|
/* Upper left wall corner */
|
|
wall_corner([-pcb_clearance_edge - thickness + corner_radius,
|
|
pcb_clearance_edge + pcb_length + thickness - corner_radius,
|
|
-thickness + corner_radius],
|
|
[0, 0, 90],
|
|
corner_radius,
|
|
wall_height + thickness - corner_radius);
|
|
|
|
/* Bottom plate */
|
|
panel([-pcb_clearance_edge - thickness + corner_radius,
|
|
-pcb_clearance_edge - thickness + corner_radius,
|
|
-thickness],
|
|
[bottom_width + 2 * thickness - 2 * corner_radius,
|
|
bottom_length + 2 * thickness - 2 * corner_radius,
|
|
thickness]);
|
|
|
|
/* Upper edge */
|
|
round_edge([-pcb_clearance_edge - thickness + corner_radius,
|
|
pcb_clearance_edge + thickness + pcb_length - corner_radius,
|
|
-thickness + corner_radius],
|
|
[0, 90, 0],
|
|
wall_width);
|
|
|
|
/* Right edge */
|
|
round_edge([ pcb_clearance_edge + thickness + pcb_width - corner_radius,
|
|
-pcb_clearance_edge - thickness + corner_radius,
|
|
-thickness + corner_radius],
|
|
[270, 0, 0],
|
|
wall_length);
|
|
|
|
/* Lower edge */
|
|
round_edge([-pcb_clearance_edge - thickness + corner_radius,
|
|
-pcb_clearance_edge - thickness + corner_radius,
|
|
-thickness + corner_radius],
|
|
[90, 180, 90],
|
|
wall_width);
|
|
|
|
/* Left edge */
|
|
round_edge([-pcb_clearance_edge - thickness + corner_radius,
|
|
-pcb_clearance_edge - thickness + corner_radius,
|
|
-thickness + corner_radius],
|
|
[270, 90, 0],
|
|
wall_length);
|
|
|
|
/* Upper right corner */
|
|
round_corner([pcb_clearance_edge + thickness + pcb_width - corner_radius,
|
|
pcb_clearance_edge + thickness + pcb_length - corner_radius,
|
|
-thickness + corner_radius],
|
|
[90, 90, 90]);
|
|
|
|
/* Lower right corner */
|
|
round_corner([ pcb_clearance_edge + thickness + pcb_width - corner_radius,
|
|
-pcb_clearance_edge - thickness + corner_radius,
|
|
-thickness + corner_radius],
|
|
[180, 90, 90]);
|
|
|
|
/* Lower left corner */
|
|
round_corner([-pcb_clearance_edge - thickness + corner_radius,
|
|
-pcb_clearance_edge - thickness + corner_radius,
|
|
-thickness + corner_radius],
|
|
[-90, 90, 90]);
|
|
|
|
/* Upper left corner */
|
|
round_corner([-pcb_clearance_edge - thickness + corner_radius,
|
|
pcb_clearance_edge + thickness + pcb_length - corner_radius,
|
|
-thickness + corner_radius],
|
|
[0, 90, 90]);
|
|
|
|
/* Screw holes */
|
|
for (screw_hole = pcb_screw_holes) {
|
|
screw_post([screw_hole[0], screw_hole[1], 0],
|
|
pcb_screw_height,
|
|
pcb_screw_diameter);
|
|
}
|
|
|
|
/* Ridges (for rigidity!) */
|
|
ridges(thickness * 2, pcb_clearance_bottom / 2);
|
|
}
|
|
|
|
keyboard_base_plate([pcb_width, pcb_length, pcb_height],
|
|
pcb_screw_holes,
|
|
[-switch_leg_length, switch_height]);
|