3DPrinting/KeyV2
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lots of stuff

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* added new hex key shape
* moved corner and side sculpting functions into special variables
* fixed negative inset stems sticking out the top
* added corner smoothing functionality to 3d surface dishes
This commit is contained in:
Bob 2022-10-07 12:48:06 -04:00
parent ec44ef76de
commit e88a398f7a
19 changed files with 495 additions and 118 deletions
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8
TODO.md
View File

@ -1,5 +1,11 @@
TODO:
* Make flat stem support default
* implement key_shape_at_progress which allows you to query for the exact 2d outline of the keycap at a given height
* this makes certain functions easier - building the envelope for instance
* requires breaking out shape_slice, and creating a polygon of the skin_shape_slice slices
* dishes add / remove height from keycaps, particularly spherical dishes
* a bandaid solution would be to allow you to modify where the keytop is along the progression of the keycap
* you can't just set a new total_depth because of how width_difference and height_difference work
* the true solution would be to rewrite how the dishes work to make them very graduated at the edges
* implement regular polygon for skin extrusions
* switch to skin-shaped extrusions by default
* kailh choc has a non-square key unit; should I get that working for layouts etc?

376
customizer.scad
View File

@ -91,8 +91,10 @@ $rounded_cherry_stem_d = 5.5;
// Inset stem requires support but is more accurate in some profiles
// can be negative to make outset stems!
$stem_inset = 0;
// How many degrees to rotate the stems. useful for sideways keycaps, maybe
// How many degrees to rotate the stems. useful for sideways keycaps
$stem_rotation = 0;
// How many degrees to rotate the keycap, but _not_ inside features (the stem).
$keycap_rotation = 0;
/* [Shape] */
@ -210,29 +212,29 @@ $shape_facets =30;
// "flat" / "dished" / "disable"
$inner_shape_type = "flat";
// When sculpting sides using sculpted_square, how much in should the tops come
$side_sculpting_factor = 4.5;
// When sculpting corners, how much extra radius should be added
$corner_sculpting_factor = 1;
// When doing more side sculpting corners, how much extra radius should be added
$more_side_sculpting_factor = 0.4;
// default side_sculpting function, linear
$side_sculpting = function(progress) 0;
$corner_sculpting = function(progress) 0;
// you probably shouldn't touch this, it's internal to sculpted_square
// modify side sculpting with the $side_sculpting function in the key profile files
$more_side_sculpting_factor = 0;
// 3d surface functions (still in beta)
// 3d surface settings
// unused for now
$3d_surface_size = 20;
// resolution in each axis. 10 = 10 divisions per x/y = 100 points total.
// 5 = 20 divisions per x/y
$3d_surface_step = 1;
$3d_surface_size = 1;
// 3d surface point resolution. $3d_surface_size / $3d_surface_step = steps per x / y
$3d_surface_step = 1/20;
// monotonically increasing function that distributes the points of the surface mesh
// only for polar_3d_surface right now
// if it's linear it's a grid. sin(dim) * size concentrates detail around the edges
sinusoidal_surface_distribution = function(dim,size) sin(dim) * size;
linear_surface_distribution = function(dim,size) sin(dim) * size;
linear_surface_distribution = function(dim,size) dim;
$surface_distribution_function = linear_surface_distribution;
$surface_distribution_function = sinusoidal_surface_distribution;
// the function that actually determines what the surface is.
// feel free to override, the last one wins
@ -251,6 +253,10 @@ bumps_surface = function(x,y) sin(20*x)*cos(20*y)/3+1;
$surface_function = bumps_surface; // bumps_surface;
// can be used to smooth the corners of the 3d surface function, to make the dishes add / subtract less height. can really do anything it's just multiplying, but that's what I use it for
$corner_smoothing_surface_function = function(x,y) 1;
// $corner_smoothing_surface_function = function(x,y) (1 - pow(abs(x), 5)/$3d_surface_size) * (1 - pow(abs(y),5)/$3d_surface_size);
// ripples
/*
// Rosenbrock's banana
@ -438,8 +444,15 @@ module dsa_row(row=3, column = 0) {
$dish_skew_x = 0;
$dish_skew_y = 0;
$height_slices = 10;
$enable_side_sculpting = true;
$dish_type = "3d surface";
$surface_function = spherical_surface;
$side_sculpting = function(progress) (1 - progress) * 4.5;
$corner_sculpting = function(progress) pow(progress, 2);
$corner_radius = 1;
$more_side_sculpting_factor = 0.4;
$top_tilt_y = side_tilt(column);
extra_height = $double_sculpted ? extra_side_tilt_height(column) : 0;
@ -476,7 +489,12 @@ module sa_row(n=3, column=0) {
$dish_skew_y = 0;
$top_skew = 0;
$height_slices = 10;
$corner_radius = 1;
$more_side_sculpting_factor = 0.4;
$side_sculpting = function(progress) (1 - progress) * 4.5;
$corner_sculpting = function(progress) pow(progress, 2);
// this is _incredibly_ intensive
/* $rounded_key = true; */
@ -567,7 +585,12 @@ module hipro_row(row=3, column=0) {
$dish_skew_y = 0;
$top_skew = 0;
$height_slices = 10;
$corner_radius = 1;
$more_side_sculpting_factor = 0.4;
$side_sculpting = function(progress) (1 - progress) * 4.5;
$corner_sculpting = function(progress) pow(progress, 2);
$top_tilt_y = side_tilt(column);
extra_height = $double_sculpted ? extra_side_tilt_height(column) : 0;
@ -609,11 +632,13 @@ module mt3_row(row=3, column=0, deep_dish=false) {
$top_skew = 0;
$height_slices = 10;
$corner_sculpting_factor = 2;
$corner_radius = 0.0125;
$more_side_sculpting_factor = 0.75;
$side_sculpting = function(progress) (1 - progress) * 4.5;
$corner_sculpting = function(progress) pow(progress, 2) * 2;
$top_tilt_y = side_tilt(column);
extra_height = $double_sculpted ? extra_side_tilt_height(column) : 0;
@ -822,10 +847,13 @@ module dss_row(n=3, column=0) {
$dish_skew_y = 0;
$top_skew = 0;
$height_slices = 10;
$enable_side_sculpting = true;
// might wanna change this if you don't minkowski
// do you even minkowski bro
$corner_radius = 1;
$more_side_sculpting_factor = 0.4;
$side_sculpting = function(progress) (1 - progress) * 4.5;
$corner_sculpting = function(progress) pow(progress, 2);
// this is _incredibly_ intensive
/* $rounded_key = true; */
@ -873,7 +901,12 @@ module dss_row(n=3, column=0) {
$top_skew = 1.75;
$stem_inset = 1.2;
$height_slices = 10;
$corner_radius = 1;
$more_side_sculpting_factor = 0.4;
$side_sculpting = function(progress) (1 - progress) * 4.5;
$corner_sculpting = function(progress) pow(progress, 2);
// this is _incredibly_ intensive
//$rounded_key = true;
@ -918,7 +951,7 @@ module typewriter_row(n=3, column=0) {
$inverted_dish = true;
$stem_inset = -4.5;
$stem_throw = 5;
$dish_depth = 1;
$dish_depth = 4;
$dish_skew_x = 0;
$dish_skew_y = 0;
$top_skew = 0;
@ -957,6 +990,70 @@ module typewriter_row(n=3, column=0) {
$total_depth = base_depth + extra_height;
$top_tilt = 0;
children();
}
}// a safe theoretical distance between two vertices such that they don't collapse. hard to use
SMALLEST_POSSIBLE = 1/128;
$fs=0.1;
$unit=19.05;
// Regular polygon shapes CIRCUMSCRIBE the sphere of diameter $bottom_key_width
// This is to make tiling them easier, like in the case of hexagonal keycaps etc
// this function doesn't set the key shape, so you can't use it directly without some fiddling
module hex_row(n=3, column=0) {
$bottom_key_width = $unit - 0.5;
$bottom_key_height = $unit - 0.5;
$width_difference = 0;
$height_difference = 0;
$dish_type = "spherical";
$key_shape_type = "hexagon";
$stem_inset = -2.5;
$stem_throw = 3;
// $dish_depth = 1;
$top_skew = 0;
$height_slices = 1;
$stem_support_type = "disable";
$dish_overdraw_width = -8.25;
$dish_overdraw_height = -8.25;
// $corner_radius = 1;
// this is _incredibly_ intensive
/* $rounded_key = true; */
$top_tilt_y = side_tilt(column);
extra_height = $double_sculpted ? extra_side_tilt_height(column) : 0;
base_depth = 4;
if (n <= 1){
$total_depth = base_depth + 2.5 + extra_height;
$top_tilt = -13;
children();
} else if (n == 2) {
$total_depth = base_depth + 0.5 + extra_height;
$top_tilt = -7;
children();
} else if (n == 3) {
$total_depth = base_depth + extra_height;
$top_tilt = 0;
children();
} else if (n == 4){
$total_depth = base_depth + 0.5 + extra_height;
$top_tilt = 7;
children();
} else {
$total_depth = base_depth + extra_height;
$top_tilt = 0;
children();
}
}
@ -982,6 +1079,8 @@ module key_profile(key_profile_type, row, column=0) {
grid_row(row, column) children();
} else if (key_profile_type == "typewriter") {
typewriter_row(row, column) children();
} else if (key_profile_type == "hex") { // reddit.com/r/MechanicalKeyboards/comments/kza7ji
hex_row(row, column) children();
} else if (key_profile_type == "hexagon") {
hexagonal_row(row, column) children();
} else if (key_profile_type == "octagon") {
@ -1005,7 +1104,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -1024,6 +1123,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -1049,6 +1152,9 @@ function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;
module spacebar() {
$inverted_dish = $dish_type != "disable";
$dish_type = $dish_type != "disable" ? "sideways cylindrical" : "disable";
@ -1445,7 +1551,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -1464,6 +1570,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -1488,7 +1598,10 @@ function extra_keytop_length_for_flat_sides() = ($width_difference * vertical_in
function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// a safe theoretical distance between two vertices such that they don't collapse. hard to use
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;// a safe theoretical distance between two vertices such that they don't collapse. hard to use
SMALLEST_POSSIBLE = 1/128;
$fs=0.1;
$unit=19.05;
@ -1501,7 +1614,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -1520,6 +1633,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -1544,7 +1661,10 @@ function extra_keytop_length_for_flat_sides() = ($width_difference * vertical_in
function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// Library: round-anything
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;// Library: round-anything
// Version: 1.0
// Author: IrevDev
// Contributors: TLC123
@ -2313,9 +2433,9 @@ module sculpted_square_shape(size, delta, progress) {
width_difference = delta[0];
height_difference = delta[1];
// makes the sides bow
extra_side_size = side_sculpting(progress);
extra_side_size = $side_sculpting(progress);
// makes the rounded corners of the keycap grow larger as they move upwards
extra_corner_size = corner_sculpting(progress);
extra_corner_size = $corner_sculpting(progress);
// computed values for this slice
extra_width_this_slice = (width_difference - extra_side_size) * progress;
@ -2371,9 +2491,9 @@ function skin_sculpted_square_shape(size, delta, progress, thickness_difference)
width_difference = delta[0],
height_difference = delta[1],
// makes the sides bow
extra_side_size = side_sculpting(progress),
extra_side_size = $side_sculpting(progress),
// makes the rounded corners of the keycap grow larger as they move upwards
extra_corner_size = corner_sculpting(progress),
extra_corner_size = $corner_sculpting(progress),
// computed values for this slice
extra_width_this_slice = (width_difference - extra_side_size) * progress,
@ -2413,7 +2533,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -2432,6 +2552,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -2457,6 +2581,9 @@ function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;
// we do this weird key_shape_type check here because rounded_square uses
// square_shape, and we want flat sides to work for that too.
// could be refactored, idk
@ -3214,7 +3341,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -3233,6 +3360,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -3258,6 +3389,9 @@ function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;
// we do this weird key_shape_type check here because rounded_square uses
// square_shape, and we want flat sides to work for that too.
// could be refactored, idk
@ -3383,7 +3517,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -3402,6 +3536,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -3427,6 +3565,9 @@ function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;
// extra length to the vertical tine of the inside cherry cross
// splits the stem into halves - allows easier fitment
extra_vertical = 100;
@ -3471,7 +3612,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -3490,6 +3631,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -3514,7 +3659,10 @@ function extra_keytop_length_for_flat_sides() = ($width_difference * vertical_in
function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// a safe theoretical distance between two vertices such that they don't collapse. hard to use
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;// a safe theoretical distance between two vertices such that they don't collapse. hard to use
SMALLEST_POSSIBLE = 1/128;
$fs=0.1;
$unit=19.05;
@ -3523,7 +3671,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -3542,6 +3690,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -3567,6 +3719,9 @@ function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;
// extra length to the vertical tine of the inside cherry cross
// splits the stem into halves - allows easier fitment
extra_vertical = 100;
@ -3621,7 +3776,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -3640,6 +3795,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -3664,7 +3823,10 @@ function extra_keytop_length_for_flat_sides() = ($width_difference * vertical_in
function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// a safe theoretical distance between two vertices such that they don't collapse. hard to use
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;// a safe theoretical distance between two vertices such that they don't collapse. hard to use
SMALLEST_POSSIBLE = 1/128;
$fs=0.1;
$unit=19.05;
@ -3673,7 +3835,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -3692,6 +3854,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -3717,6 +3883,9 @@ function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;
// extra length to the vertical tine of the inside cherry cross
// splits the stem into halves - allows easier fitment
extra_vertical = 100;
@ -3789,7 +3958,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -3808,6 +3977,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -3833,6 +4006,9 @@ function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;
// extra length to the vertical tine of the inside cherry cross
// splits the stem into halves - allows easier fitment
extra_vertical = 0.6;
@ -3911,7 +4087,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -3930,6 +4106,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -3954,7 +4134,10 @@ function extra_keytop_length_for_flat_sides() = ($width_difference * vertical_in
function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// a safe theoretical distance between two vertices such that they don't collapse. hard to use
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;// a safe theoretical distance between two vertices such that they don't collapse. hard to use
SMALLEST_POSSIBLE = 1/128;
$fs=0.1;
$unit=19.05;
@ -3963,7 +4146,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -3982,6 +4165,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -4007,6 +4194,9 @@ function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;
// extra length to the vertical tine of the inside cherry cross
// splits the stem into halves - allows easier fitment
extra_vertical = 100;
@ -4108,7 +4298,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -4127,6 +4317,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -4151,7 +4345,10 @@ function extra_keytop_length_for_flat_sides() = ($width_difference * vertical_in
function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// a safe theoretical distance between two vertices such that they don't collapse. hard to use
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;// a safe theoretical distance between two vertices such that they don't collapse. hard to use
SMALLEST_POSSIBLE = 1/128;
$fs=0.1;
$unit=19.05;
@ -4160,7 +4357,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -4179,6 +4376,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -4204,6 +4405,9 @@ function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;
// extra length to the vertical tine of the inside cherry cross
// splits the stem into halves - allows easier fitment
extra_vertical = 100;
@ -4504,6 +4708,10 @@ module sideways_cylindrical_dish(width, height, depth, inverted){
}
}
module spherical_dish(width, height, depth, inverted){
// these variables take into account corner_radius and corner_sculpting, resulting in a more correct dish
// they don't fix the core issue though (dishes adding / subtracting height on the edges of the keycap), so I've disabled them
// new_width = $key_shape_type == "sculpted_square" ? width - distance_between_circumscribed_and_inscribed($corner_radius + $corner_sculpting(1)) : width;
// new_height = $key_shape_type == "sculpted_square" ? height - distance_between_circumscribed_and_inscribed($corner_radius + $corner_sculpting(1)) : height;
//same thing as the cylindrical dish here, but we need the corners to just touch - so we have to find the hypotenuse of the top
chord = pow((pow(width,2) + pow(height, 2)),0.5); //getting diagonal of the top
@ -4599,7 +4807,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -4618,6 +4826,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -4643,8 +4855,11 @@ function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;
module 3d_surface(size=$3d_surface_size, step=$3d_surface_step, bottom=-SMALLEST_POSSIBLE){
function p(x, y) = [ x, y, max(0,$surface_function(x, y)) ];
function p(x, y) = [ x, y, max(0,$surface_function(x, y) * $corner_smoothing_surface_function(x,y)) ];
function p0(x, y) = [ x, y, bottom ];
function rev(b, v) = b ? v : [ v[3], v[2], v[1], v[0] ];
function face(x, y) = [ p(x, y + step), p(x + step, y + step), p(x + step, y), p(x + step, y), p(x, y), p(x, y + step) ];
@ -4682,7 +4897,7 @@ module polar_3d_surface(size, step, bottom=-SMALLEST_POSSIBLE){
function p(x, y) = [
$surface_distribution_function(to_polar(x, size), size),
$surface_distribution_function(to_polar(y, size), size),
max(0,$surface_function($surface_distribution_function(to_polar(x, size), size), $surface_distribution_function(to_polar(y, size), size)))
max(0,$surface_function($surface_distribution_function(to_polar(x, size), size), $surface_distribution_function(to_polar(y, size), size)) * $corner_smoothing_surface_function($surface_distribution_function(to_polar(x, size), size), $surface_distribution_function(to_polar(y, size), size)))
];
function p0(x, y) = [ x, y, bottom ];
function rev(b, v) = b ? v : [ v[3], v[2], v[1], v[0] ];
@ -4725,7 +4940,7 @@ module 3d_surface_dish(width, height, depth, inverted) {
// it doesn't have to be dead reckoning for anything but sculpted sides
// we know the angle of the sides from the width difference, height difference,
// skew and tilt of the top. it's a pain to calculate though
scale_factor = 1.11;
scale_factor = 1.05;
// the edges on this behave differently than with the previous dish implementations
scale([width*scale_factor/$3d_surface_size/2,height*scale_factor/$3d_surface_size/2,depth])
rotate([inverted ? 0:180,0,180])
@ -4770,7 +4985,7 @@ $unit=19.05;
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -4789,6 +5004,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -4813,7 +5032,10 @@ function extra_keytop_length_for_flat_sides() = ($width_difference * vertical_in
function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// TODO this define doesn't do anything besides tell me I used flat() in this file
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;// TODO this define doesn't do anything besides tell me I used flat() in this file
// is it better than not having it at all?
module flat(stem_type, loft, height) {
translate([0,0,loft + 500]){
@ -6011,7 +6233,7 @@ function profile_segment_length(profile,i) = norm(profile[(i+1)%len(profile)] -
// Generates an array with n copies of value (default 0)
function dup(value=0,n) = [for (i = [1:n]) value];
// key shape including dish. used as the ouside and inside shape in hollow_key(). allows for itself to be shrunk in depth and width / height
// key shape including dish. used as the outside and inside shape in hollow_key(). allows for itself to be shrunk in depth and width / height
module shape(thickness_difference, depth_difference=0){
dished(depth_difference, $inverted_dish) {
color($primary_color) shape_hull(thickness_difference, depth_difference, $inverted_dish ? 200 : 0);
@ -6040,12 +6262,13 @@ module minkowski_object() {
}
}
module envelope(depth_difference=0) {
s = 1.5;
module envelope(depth_difference=0, extra_floor_depth=0) {
size = 1.5;
hull(){
cube([total_key_width() * s, total_key_height() * s, 0.01], center = true);
translate([0,0,extra_floor_depth]) cube([key_width_at_progress(extra_floor_depth / $total_depth) * size, key_height_at_progress(extra_floor_depth / $total_depth) * size, 0.01], center = true);
top_placement(SMALLEST_POSSIBLE + depth_difference){
cube([top_total_key_width() * s, top_total_key_height() * s, 0.01], center = true);
cube([top_total_key_width() * size, top_total_key_height() * size, 0.01], center = true);
}
}
}
@ -6058,12 +6281,12 @@ module dished(depth_difference = 0, inverted = false) {
children();
difference(){
union() {
// envelope is needed to "fill in" the rest of the keycap
envelope(depth_difference);
// envelope is needed to "fill in" the rest of the keycap. intersections with small objects are much faster than differences with large objects
envelope(depth_difference, $stem_inset);
if (inverted) top_placement(depth_difference) color($secondary_color) _dish(inverted);
}
if (!inverted) top_placement(depth_difference) color($secondary_color) _dish(inverted);
/* %top_placement(depth_difference) _dish(); */
// %top_placement(depth_difference) _dish();
}
}
}
@ -6073,6 +6296,7 @@ module dished(depth_difference = 0, inverted = false) {
module _dish(inverted=$inverted_dish) {
translate([$dish_offset_x,0,0]) color($secondary_color)
dish(top_total_key_width() + $dish_overdraw_width, top_total_key_height() + $dish_overdraw_height, $dish_depth, inverted);
// %dish(top_total_key_width() + $dish_overdraw_width, top_total_key_height() + $dish_overdraw_height, $dish_depth, inverted);
}
// puts its children at each keystem position provided
@ -6233,7 +6457,7 @@ module key(inset=false) {
};
if ($inner_shape_type != "disable") {
translate([0,0,-SMALLEST_POSSIBLE]) {
translate([0,0,-SMALLEST_POSSIBLE]) { // avoids moire
inner_total_shape();
}
}
@ -6243,10 +6467,12 @@ module key(inset=false) {
};
}
// if $stem_inset is less than zero, we add the
// semi-hack to make sure negative inset stems don't poke through the top of the keycap
if ($stem_inset < 0) {
dished(0, $inverted_dish) {
stems_and_stabilizers();
}
}
}
// actual full key with space carved out and keystem/stabilizer connectors
@ -6330,8 +6556,10 @@ $rounded_cherry_stem_d = 5.5;
// Inset stem requires support but is more accurate in some profiles
// can be negative to make outset stems!
$stem_inset = 0;
// How many degrees to rotate the stems. useful for sideways keycaps, maybe
// How many degrees to rotate the stems. useful for sideways keycaps
$stem_rotation = 0;
// How many degrees to rotate the keycap, but _not_ inside features (the stem).
$keycap_rotation = 0;
/* [Shape] */
@ -6449,29 +6677,29 @@ $shape_facets =30;
// "flat" / "dished" / "disable"
$inner_shape_type = "flat";
// When sculpting sides using sculpted_square, how much in should the tops come
$side_sculpting_factor = 4.5;
// When sculpting corners, how much extra radius should be added
$corner_sculpting_factor = 1;
// When doing more side sculpting corners, how much extra radius should be added
$more_side_sculpting_factor = 0.4;
// default side_sculpting function, linear
$side_sculpting = function(progress) 0;
$corner_sculpting = function(progress) 0;
// you probably shouldn't touch this, it's internal to sculpted_square
// modify side sculpting with the $side_sculpting function in the key profile files
$more_side_sculpting_factor = 0;
// 3d surface functions (still in beta)
// 3d surface settings
// unused for now
$3d_surface_size = 20;
// resolution in each axis. 10 = 10 divisions per x/y = 100 points total.
// 5 = 20 divisions per x/y
$3d_surface_step = 1;
$3d_surface_size = 1;
// 3d surface point resolution. $3d_surface_size / $3d_surface_step = steps per x / y
$3d_surface_step = 1/20;
// monotonically increasing function that distributes the points of the surface mesh
// only for polar_3d_surface right now
// if it's linear it's a grid. sin(dim) * size concentrates detail around the edges
sinusoidal_surface_distribution = function(dim,size) sin(dim) * size;
linear_surface_distribution = function(dim,size) sin(dim) * size;
linear_surface_distribution = function(dim,size) dim;
$surface_distribution_function = linear_surface_distribution;
$surface_distribution_function = sinusoidal_surface_distribution;
// the function that actually determines what the surface is.
// feel free to override, the last one wins
@ -6490,6 +6718,10 @@ bumps_surface = function(x,y) sin(20*x)*cos(20*y)/3+1;
$surface_function = bumps_surface; // bumps_surface;
// can be used to smooth the corners of the 3d surface function, to make the dishes add / subtract less height. can really do anything it's just multiplying, but that's what I use it for
$corner_smoothing_surface_function = function(x,y) 1;
// $corner_smoothing_surface_function = function(x,y) (1 - pow(abs(x), 5)/$3d_surface_size) * (1 - pow(abs(y),5)/$3d_surface_size);
// ripples
/*
// Rosenbrock's banana

35
keys.scad
View File

@ -8,13 +8,38 @@
include <./includes.scad>
// $rounded_key = true;
// example key
dcs_row(5) legend("⇪", size=9) key();
// typewriter_row(5) legend("⇪", size=9) resin() key();
// example row
/* for (x = [0:1:4]) {
translate_u(0,-x) dcs_row(x) key();
} */
// // example row
// for(y = [0:1:3]) {
// for (x = [0:1:4]) {
// translate_u(x + y % 2 * 0.5,y) hex_row(x) key();
// }
// }
// $double_sculpted = true;
// row_length = len(preonic_mit_layout[0]);
// simple_layout(preonic_mit_layout) {
// $keycap_rotation = 90;
// // $stem_type = "choc";
// adjusted_column = [-1, -1/2, 0, 1/2, 0, -1/2, -1/2, 0, 1/2, 0, -1/2, -1];
// column_value = double_sculpted_column($column, row_length, "2hands");
// translate_u(0, adjusted_column[$column]) hex_row($row, column_value) {
// key();
// }
// }
// $hull_shape_type = "skin";
dsa_row(1) key();
translate_u(1) dsa_row(1) {
union() {
// $total_depth = 11;
$inverted_dish = true;
key();
}
}
// example layout
/* preonic_default("dcs") key(); */

2
src/dishes/3d_surface.scad
View File

@ -6,7 +6,7 @@ module 3d_surface_dish(width, height, depth, inverted) {
// it doesn't have to be dead reckoning for anything but sculpted sides
// we know the angle of the sides from the width difference, height difference,
// skew and tilt of the top. it's a pain to calculate though
scale_factor = 1.11;
scale_factor = 1.05;
// the edges on this behave differently than with the previous dish implementations
scale([width*scale_factor/$3d_surface_size/2,height*scale_factor/$3d_surface_size/2,depth])
rotate([inverted ? 0:180,0,180])

4
src/dishes/spherical.scad
View File

@ -1,4 +1,8 @@
module spherical_dish(width, height, depth, inverted){
// these variables take into account corner_radius and corner_sculpting, resulting in a more correct dish
// they don't fix the core issue though (dishes adding / subtracting height on the edges of the keycap), so I've disabled them
// new_width = $key_shape_type == "sculpted_square" ? width - distance_between_circumscribed_and_inscribed($corner_radius + $corner_sculpting(1)) : width;
// new_height = $key_shape_type == "sculpted_square" ? height - distance_between_circumscribed_and_inscribed($corner_radius + $corner_sculpting(1)) : height;
//same thing as the cylindrical dish here, but we need the corners to just touch - so we have to find the hypotenuse of the top
chord = pow((pow(width,2) + pow(height, 2)),0.5); //getting diagonal of the top

10
src/functions.scad
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@ -4,7 +4,7 @@ include <constants.scad>
// functions need to be explicitly included, unlike special variables, which
// just need to have been set before they are used. hence this file
function stem_height() = $total_depth - $dish_depth - $stem_inset;
function stem_height() = $total_depth - ($dish_depth * ($inverted_dish ? -1 : 1)) - $stem_inset;
// cherry stem dimensions
function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - slop * 2];
@ -23,6 +23,10 @@ function cherry_cross(slop, extra_vertical = 0) = [
[1.15 + slop / 3, 4.23 + extra_vertical + slop / 3 + SMALLEST_POSSIBLE],
];
// TODO add side_sculpting
function key_width_at_progress(progress = 0) = $bottom_key_width + ($unit * ($key_length - 1)) - $width_difference;
function key_height_at_progress(progress = 0) = $bottom_key_height + ($unit * ($key_length - 1)) - $height_difference + $side_sculpting(progress);
// actual mm key width and height
function total_key_width(delta = 0) = $bottom_key_width + $unit * ($key_length - 1) - delta;
function total_key_height(delta = 0) = $bottom_key_height + $unit * ($key_height - 1) - delta;
@ -47,3 +51,7 @@ function extra_keytop_length_for_flat_sides() = ($width_difference * vertical_in
function add_rounding(p, radius)=[for(i=[0:len(p)-1])[p[i].x,p[i].y, radius]];
// computes millimeter length from unit length
function unit_length(length) = $unit * (length - 1) + 18.16;
// if you have a radius of an inscribed circle, this function gives you the extra length for the radius of the circumscribed circle
// and vice versa. used to find the edge of a rounded_square
function distance_between_circumscribed_and_inscribed(radius) = (pow(2, 0.5) - 1) * radius;

24
src/key.scad
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@ -17,7 +17,7 @@ use <libraries/scad-utils/lists.scad>
use <libraries/scad-utils/shapes.scad>
use <libraries/skin.scad>
// key shape including dish. used as the ouside and inside shape in hollow_key(). allows for itself to be shrunk in depth and width / height
// key shape including dish. used as the outside and inside shape in hollow_key(). allows for itself to be shrunk in depth and width / height
module shape(thickness_difference, depth_difference=0){
dished(depth_difference, $inverted_dish) {
color($primary_color) shape_hull(thickness_difference, depth_difference, $inverted_dish ? 200 : 0);
@ -46,12 +46,13 @@ module minkowski_object() {
}
}
module envelope(depth_difference=0) {
s = 1.5;
module envelope(depth_difference=0, extra_floor_depth=0) {
size = 1.5;
hull(){
cube([total_key_width() * s, total_key_height() * s, 0.01], center = true);
translate([0,0,extra_floor_depth]) cube([key_width_at_progress(extra_floor_depth / $total_depth) * size, key_height_at_progress(extra_floor_depth / $total_depth) * size, 0.01], center = true);
top_placement(SMALLEST_POSSIBLE + depth_difference){
cube([top_total_key_width() * s, top_total_key_height() * s, 0.01], center = true);
cube([top_total_key_width() * size, top_total_key_height() * size, 0.01], center = true);
}
}
}
@ -64,12 +65,12 @@ module dished(depth_difference = 0, inverted = false) {
children();
difference(){
union() {
// envelope is needed to "fill in" the rest of the keycap
envelope(depth_difference);
// envelope is needed to "fill in" the rest of the keycap. intersections with small objects are much faster than differences with large objects
envelope(depth_difference, $stem_inset);
if (inverted) top_placement(depth_difference) color($secondary_color) _dish(inverted);
}
if (!inverted) top_placement(depth_difference) color($secondary_color) _dish(inverted);
/* %top_placement(depth_difference) _dish(); */
// %top_placement(depth_difference) _dish();
}
}
}
@ -79,6 +80,7 @@ module dished(depth_difference = 0, inverted = false) {
module _dish(inverted=$inverted_dish) {
translate([$dish_offset_x,0,0]) color($secondary_color)
dish(top_total_key_width() + $dish_overdraw_width, top_total_key_height() + $dish_overdraw_height, $dish_depth, inverted);
// %dish(top_total_key_width() + $dish_overdraw_width, top_total_key_height() + $dish_overdraw_height, $dish_depth, inverted);
}
// puts its children at each keystem position provided
@ -239,7 +241,7 @@ module key(inset=false) {
};
if ($inner_shape_type != "disable") {
translate([0,0,-SMALLEST_POSSIBLE]) {
translate([0,0,-SMALLEST_POSSIBLE]) { // avoids moire
inner_total_shape();
}
}
@ -249,10 +251,12 @@ module key(inset=false) {
};
}
// if $stem_inset is less than zero, we add the
// semi-hack to make sure negative inset stems don't poke through the top of the keycap
if ($stem_inset < 0) {
dished(0, $inverted_dish) {
stems_and_stabilizers();
}
}
}
// actual full key with space carved out and keystem/stabilizer connectors

3
src/key_profiles.scad
View File

@ -15,6 +15,7 @@ include <key_profiles/cherry.scad>
include <key_profiles/dss.scad>
include <key_profiles/asa.scad>
include <key_profiles/typewriter.scad>
include <key_profiles/hex.scad>
// man, wouldn't it be so cool if functions were first order
module key_profile(key_profile_type, row, column=0) {
@ -38,6 +39,8 @@ module key_profile(key_profile_type, row, column=0) {
grid_row(row, column) children();
} else if (key_profile_type == "typewriter") {
typewriter_row(row, column) children();
} else if (key_profile_type == "hex") { // reddit.com/r/MechanicalKeyboards/comments/kza7ji
hex_row(row, column) children();
} else if (key_profile_type == "hexagon") {
hexagonal_row(row, column) children();
} else if (key_profile_type == "octagon") {

5
src/key_profiles/asa.scad
View File

@ -13,7 +13,12 @@ module asa_row(row=3, column = 0) {
$top_skew = 1.75;
$stem_inset = 1.2;
$height_slices = 10;
$corner_radius = 1;
$more_side_sculpting_factor = 0.4;
$side_sculpting = function(progress) (1 - progress) * 4.5;
$corner_sculpting = function(progress) pow(progress, 2);
// this is _incredibly_ intensive
//$rounded_key = true;

9
src/key_profiles/dsa.scad
View File

@ -11,8 +11,15 @@ module dsa_row(row=3, column = 0) {
$dish_skew_x = 0;
$dish_skew_y = 0;
$height_slices = 10;
$enable_side_sculpting = true;
$dish_type = "3d surface";
$surface_function = spherical_surface;
$side_sculpting = function(progress) (1 - progress) * 4.5;
$corner_sculpting = function(progress) pow(progress, 2);
$corner_radius = 1;
$more_side_sculpting_factor = 0.4;
$top_tilt_y = side_tilt(column);
extra_height = $double_sculpted ? extra_side_tilt_height(column) : 0;

5
src/key_profiles/dss.scad
View File

@ -10,10 +10,13 @@ module dss_row(n=3, column=0) {
$dish_skew_y = 0;
$top_skew = 0;
$height_slices = 10;
$enable_side_sculpting = true;
// might wanna change this if you don't minkowski
// do you even minkowski bro
$corner_radius = 1;
$more_side_sculpting_factor = 0.4;
$side_sculpting = function(progress) (1 - progress) * 4.5;
$corner_sculpting = function(progress) pow(progress, 2);
// this is _incredibly_ intensive
/* $rounded_key = true; */

62
src/key_profiles/hex.scad Normal file
View File

@ -0,0 +1,62 @@
include <../constants.scad>
// Regular polygon shapes CIRCUMSCRIBE the sphere of diameter $bottom_key_width
// This is to make tiling them easier, like in the case of hexagonal keycaps etc
// this function doesn't set the key shape, so you can't use it directly without some fiddling
module hex_row(n=3, column=0) {
$bottom_key_width = $unit - 0.5;
$bottom_key_height = $unit - 0.5;
$width_difference = 0;
$height_difference = 0;
$dish_type = "spherical";
$key_shape_type = "hexagon";
$stem_inset = -2.5;
$stem_throw = 3;
// $dish_depth = 1;
$top_skew = 0;
$height_slices = 1;
$stem_support_type = "disable";
$dish_overdraw_width = -8.25;
$dish_overdraw_height = -8.25;
// $corner_radius = 1;
// this is _incredibly_ intensive
/* $rounded_key = true; */
$top_tilt_y = side_tilt(column);
extra_height = $double_sculpted ? extra_side_tilt_height(column) : 0;
base_depth = 4;
if (n <= 1){
$total_depth = base_depth + 2.5 + extra_height;
$top_tilt = -13;
children();
} else if (n == 2) {
$total_depth = base_depth + 0.5 + extra_height;
$top_tilt = -7;
children();
} else if (n == 3) {
$total_depth = base_depth + extra_height;
$top_tilt = 0;
children();
} else if (n == 4){
$total_depth = base_depth + 0.5 + extra_height;
$top_tilt = 7;
children();
} else {
$total_depth = base_depth + extra_height;
$top_tilt = 0;
children();
}
}

5
src/key_profiles/hipro.scad
View File

@ -12,7 +12,12 @@ module hipro_row(row=3, column=0) {
$dish_skew_y = 0;
$top_skew = 0;
$height_slices = 10;
$corner_radius = 1;
$more_side_sculpting_factor = 0.4;
$side_sculpting = function(progress) (1 - progress) * 4.5;
$corner_sculpting = function(progress) pow(progress, 2);
$top_tilt_y = side_tilt(column);
extra_height = $double_sculpted ? extra_side_tilt_height(column) : 0;

6
src/key_profiles/mt3.scad
View File

@ -14,11 +14,13 @@ module mt3_row(row=3, column=0, deep_dish=false) {
$top_skew = 0;
$height_slices = 10;
$corner_sculpting_factor = 2;
$corner_radius = 0.0125;
$more_side_sculpting_factor = 0.75;
$side_sculpting = function(progress) (1 - progress) * 4.5;
$corner_sculpting = function(progress) pow(progress, 2) * 2;
$top_tilt_y = side_tilt(column);
extra_height = $double_sculpted ? extra_side_tilt_height(column) : 0;

5
src/key_profiles/sa.scad
View File

@ -10,7 +10,12 @@ module sa_row(n=3, column=0) {
$dish_skew_y = 0;
$top_skew = 0;
$height_slices = 10;
$corner_radius = 1;
$more_side_sculpting_factor = 0.4;
$side_sculpting = function(progress) (1 - progress) * 4.5;
$corner_sculpting = function(progress) pow(progress, 2);
// this is _incredibly_ intensive
/* $rounded_key = true; */

2
src/key_profiles/typewriter.scad
View File

@ -13,7 +13,7 @@ module typewriter_row(n=3, column=0) {
$inverted_dish = true;
$stem_inset = -4.5;
$stem_throw = 5;
$dish_depth = 1;
$dish_depth = 4;
$dish_skew_x = 0;
$dish_skew_y = 0;
$top_skew = 0;

4
src/libraries/3d_surface.scad
View File

@ -3,7 +3,7 @@
include <../functions.scad>
module 3d_surface(size=$3d_surface_size, step=$3d_surface_step, bottom=-SMALLEST_POSSIBLE){
function p(x, y) = [ x, y, max(0,$surface_function(x, y)) ];
function p(x, y) = [ x, y, max(0,$surface_function(x, y) * $corner_smoothing_surface_function(x,y)) ];
function p0(x, y) = [ x, y, bottom ];
function rev(b, v) = b ? v : [ v[3], v[2], v[1], v[0] ];
function face(x, y) = [ p(x, y + step), p(x + step, y + step), p(x + step, y), p(x + step, y), p(x, y), p(x, y + step) ];
@ -41,7 +41,7 @@ module polar_3d_surface(size, step, bottom=-SMALLEST_POSSIBLE){
function p(x, y) = [
$surface_distribution_function(to_polar(x, size), size),
$surface_distribution_function(to_polar(y, size), size),
max(0,$surface_function($surface_distribution_function(to_polar(x, size), size), $surface_distribution_function(to_polar(y, size), size)))
max(0,$surface_function($surface_distribution_function(to_polar(x, size), size), $surface_distribution_function(to_polar(y, size), size)) * $corner_smoothing_surface_function($surface_distribution_function(to_polar(x, size), size), $surface_distribution_function(to_polar(y, size), size)))
];
function p0(x, y) = [ x, y, bottom ];
function rev(b, v) = b ? v : [ v[3], v[2], v[1], v[0] ];

32
src/settings.scad
View File

@ -76,8 +76,10 @@ $rounded_cherry_stem_d = 5.5;
// Inset stem requires support but is more accurate in some profiles
// can be negative to make outset stems!
$stem_inset = 0;
// How many degrees to rotate the stems. useful for sideways keycaps, maybe
// How many degrees to rotate the stems. useful for sideways keycaps
$stem_rotation = 0;
// How many degrees to rotate the keycap, but _not_ inside features (the stem).
$keycap_rotation = 0;
/* [Shape] */
@ -195,29 +197,29 @@ $shape_facets =30;
// "flat" / "dished" / "disable"
$inner_shape_type = "flat";
// When sculpting sides using sculpted_square, how much in should the tops come
$side_sculpting_factor = 4.5;
// When sculpting corners, how much extra radius should be added
$corner_sculpting_factor = 1;
// When doing more side sculpting corners, how much extra radius should be added
$more_side_sculpting_factor = 0.4;
// default side_sculpting function, linear
$side_sculpting = function(progress) 0;
$corner_sculpting = function(progress) 0;
// you probably shouldn't touch this, it's internal to sculpted_square
// modify side sculpting with the $side_sculpting function in the key profile files
$more_side_sculpting_factor = 0;
// 3d surface functions (still in beta)
// 3d surface settings
// unused for now
$3d_surface_size = 20;
// resolution in each axis. 10 = 10 divisions per x/y = 100 points total.
// 5 = 20 divisions per x/y
$3d_surface_step = 1;
$3d_surface_size = 1;
// 3d surface point resolution. $3d_surface_size / $3d_surface_step = steps per x / y
$3d_surface_step = 1/20;
// monotonically increasing function that distributes the points of the surface mesh
// only for polar_3d_surface right now
// if it's linear it's a grid. sin(dim) * size concentrates detail around the edges
sinusoidal_surface_distribution = function(dim,size) sin(dim) * size;
linear_surface_distribution = function(dim,size) sin(dim) * size;
linear_surface_distribution = function(dim,size) dim;
$surface_distribution_function = linear_surface_distribution;
$surface_distribution_function = sinusoidal_surface_distribution;
// the function that actually determines what the surface is.
// feel free to override, the last one wins
@ -236,6 +238,10 @@ bumps_surface = function(x,y) sin(20*x)*cos(20*y)/3+1;
$surface_function = bumps_surface; // bumps_surface;
// can be used to smooth the corners of the 3d surface function, to make the dishes add / subtract less height. can really do anything it's just multiplying, but that's what I use it for
$corner_smoothing_surface_function = function(x,y) 1;
// $corner_smoothing_surface_function = function(x,y) (1 - pow(abs(x), 5)/$3d_surface_size) * (1 - pow(abs(y),5)/$3d_surface_size);
// ripples
/*
// Rosenbrock's banana

8
src/shapes/sculpted_square.scad
View File

@ -13,9 +13,9 @@ module sculpted_square_shape(size, delta, progress) {
width_difference = delta[0];
height_difference = delta[1];
// makes the sides bow
extra_side_size = side_sculpting(progress);
extra_side_size = $side_sculpting(progress);
// makes the rounded corners of the keycap grow larger as they move upwards
extra_corner_size = corner_sculpting(progress);
extra_corner_size = $corner_sculpting(progress);
// computed values for this slice
extra_width_this_slice = (width_difference - extra_side_size) * progress;
@ -71,9 +71,9 @@ function skin_sculpted_square_shape(size, delta, progress, thickness_difference)
width_difference = delta[0],
height_difference = delta[1],
// makes the sides bow
extra_side_size = side_sculpting(progress),
extra_side_size = $side_sculpting(progress),
// makes the rounded corners of the keycap grow larger as they move upwards
extra_corner_size = corner_sculpting(progress),
extra_corner_size = $corner_sculpting(progress),
// computed values for this slice
extra_width_this_slice = (width_difference - extra_side_size) * progress,