buncha stuff
add G20 keycap, experimental minkowski_key function, more work on ISO enter, added keytop_thickness and wall_thickness, fixed bugs with length and keytop thickness, arbitrary key heights, and did some refactoring.
This commit is contained in:
Bob - Home - Windows
parent
c1c166d9dc
commit
4bb5913107
432
key.scad
432
key.scad
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@ -1,28 +1,19 @@
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/* [Hidden] */
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//change to round things better
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$fn = 64;
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unit = 19.05;
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//scale of inner to outer shape
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key_wall_thickness_width = .8;
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key_wall_thickness_height = .8;
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key_wall_thickness_depth = .8;
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/* [Key] */
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//length in units of key
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key_length = 1;
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//height in units of key. should remain 1 for most uses
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key_height = 1;
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//keycap type, [0:DCS Row 5, 1:DCS Row 1, 2:DCS Row 2, 3:DCS Row 3, 4:DCS Row 4, 5:DSA Row 3, 6:SA Row 1, 7:SA Row 2, 8:SA Row 3, 9:SA Row 4, 10:DCS Row 4 Spacebar, 11: g20 key (faked)]
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key_profile_index = 0;
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// keytop thickness, aka how many millimeters between the inside and outside of the top surface of the key
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keytop_thickness = 1;
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//keycap type, [0:DCS Row 5, 1:DCS Row 1, 2:DCS Row 2, 3:DCS Row 3, 4:DCS Row 4, 5:DSA Row 3, 6:SA Row 1, 7:SA Row 2, 8:SA Row 3, 9:SA Row 4, 10:DCS Row 4 Spacebar]
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key_profile = 0;
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// wall thickness, aka the thickness of the sides of the keycap. note this is the total thickness, aka 3 = 1.5mm walls
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wall_thickness = 3;
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/* [Brim] */
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//connector brim
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//enable brim for connector
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has_brim = 0;
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//brim radius. 11 ensconces normal keycap stem in normal keycap
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@ -30,33 +21,33 @@ brim_radius = 11;
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//brim depth
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brim_depth = .3;
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/* [Stabilizers] */
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//whether stabilizer connectors are enabled
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stabilizers = 0;
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//stabilizer distance in mm
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stabilizer_distance = 50;
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/* [Dish] */
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// invert dishing. mostly for spacebar
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inverted_dish = 0;
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/* [Stem] */
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// cherry MX or Alps stem, or totally broken circular cherry stem [0..2]
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stem_profile = 0;
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// how inset the stem is from the bottom of the key. experimental. requires support
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stem_inset = 0;
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// stem offset in units NOT MM. for stepped caps lock
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stem_offset = 0;
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/* [Hidden] */
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//change to round things better
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$fn = 32;
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//beginning to use unit instead of baked in 19.05
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unit = 19.05;
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//minkowski radius. radius of sphere used in minkowski sum for minkowski_key function
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minkowski_radius = 1;
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//profile specific stuff
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/*
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@ -261,8 +252,65 @@ key_profiles = [
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0, // Dish Skew X
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0 // DIsh Skew Y
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],
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[ //G20 AKA DCS Row 2 with no dish and shorter
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18.16, // Bottom Key Width
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18.16, // Bottom Key Height
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4, // Top Key Width Difference
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4, // Top Key Height Difference
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6, // total Depth
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3, // Top Tilt
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1.75,// Top Skew
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//Dish Profile
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3, // Dish Type
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0, // Dish Depth
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0, // Dish Skew X
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0 // DIsh Skew Y
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],
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[ //NONWORKING fake ISO enter
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18.16 * 1.5, // Bottom Key Width
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18.16 * 2, // Bottom Key Height
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4, // Top Key Width Difference
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4, // Top Key Height Difference
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7, // total Depth
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0, // Top Tilt
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1.75,// Top Skew
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//Dish Profile
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0, // Dish Type
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1, // Dish Depth
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0, // Dish Skew X
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0 // DIsh Skew Y
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],
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];
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// derived variables
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//key profile selected
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key_profile = key_profiles[key_profile_index];
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// names, so I don't go crazy
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bottom_key_width = key_profile[0];
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bottom_key_height = key_profile[1];
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width_difference = key_profile[2];
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height_difference = key_profile[3];
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total_depth = key_profile[4];
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top_tilt = key_profile[5] / key_height;
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top_skew = key_profile[6];
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dish_type = key_profile[7];
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dish_depth = key_profile[8];
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dish_skew_x = key_profile[9];
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dish_skew_y = key_profile[10];
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// actual mm key width and height
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total_key_width = bottom_key_width + (unit * (key_length - 1));
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total_key_height = bottom_key_height + (unit * (key_height - 1));
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// actual mm key width and height at the top
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top_total_key_width = bottom_key_width + (unit * (key_length - 1)) - width_difference;
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top_total_key_height = bottom_key_height + (unit * (key_height - 1)) - height_difference;
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//centered
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module roundedRect(size, radius) {
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x = size[0];
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@ -286,23 +334,27 @@ module roundedRect(size, radius) {
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}
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}
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//bottom we can use to anchor things
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module inside(key_profile)
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{
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difference(){
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translate([0,0,50])
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cube([100,100,100],center=true);
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// stem related stuff
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translate([0,0,-.1])
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shape(key_profile, 3);
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// bottom we can use to anchor the stem, just a big ol cube with the inside of
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// the keycap hollowed out
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module inside(){
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difference(){
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translate([0,0,50]) cube([100000,100000,100000],center=true);
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// NOTE: you're saying hey, if this is the inside why aren't we doing
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// wall_thickness, keytop_thickness? well first off congratulations for
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// figuring that out cuz it's a rat's nest in here. second off
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// due to how the minkowski_key function works that isn't working out right
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// now. it's a simple change if is_minkowski is implemented though
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shape(0, 0);
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}
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}
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module cherry_stem(){
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// cross length
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cross_length = 4.4;
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//extra vertical cross length - the extra length of the up/down bar of the cross
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extra_vertical_cross_length = 1.1;
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//extra vertical cross length - the extra length of the up/down bar of the cross
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extra_vertical_cross_length = 1.1;
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//dimensions of connector
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// outer cross extra length in x
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extra_outer_cross_width = 2.10;
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@ -353,14 +405,13 @@ module alps_stem(){
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base_width = 12;
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base_height = 15;
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//translate([0,0,cross_depth + 50/2]) cube([base_width, base_height, 50], center=true);
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translate([0,0,cross_depth/2 + stem_inset]){
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cube([width,height,cross_depth], center = true);
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}
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}
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//whole connector
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module connector(key_profile,has_brim){
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//whole connector, alps or cherry, trimmed to fit
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module connector(has_brim){
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difference(){
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//TODO can I really not do an array index here?
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translate([-unit * stem_offset, 0, 0])
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@ -368,108 +419,91 @@ module connector(key_profile,has_brim){
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if(stem_profile == 0 || stem_profile == 2) cherry_stem();
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if(stem_profile == 1) alps_stem();
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}
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inside(key_profile);
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inside();
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}
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}
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//stabilizer connectors
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module stabilizer_connectors(key_profile,has_brim){
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translate([stabilizer_distance,0,0]) connector(key_profile, has_brim);
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translate([-stabilizer_distance,0,0]) connector(key_profile, has_brim);
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//stabilizer connectors
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module stabilizer_connectors(has_brim){
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translate([stabilizer_distance,0,0]) connector(has_brim);
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translate([-stabilizer_distance,0,0]) connector(has_brim);
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}
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//i h8 u scad
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module shape(key_profile, thickness){
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bottom_key_width = key_profile[0] ;
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bottom_key_height = key_profile[1];
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top_key_width_difference = key_profile[2];
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top_key_height_difference = key_profile[3];
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total_depth = key_profile[4] - thickness;
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top_tilt = key_profile[5];
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top_skew = key_profile[6];
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if (inverted_dish == 1){
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//shape related stuff
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//general shape of key. used for inside and outside
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module shape(thickness_difference, depth_difference){
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if (inverted_dish == 1){
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difference(){
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union(){
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shape_hull(key_profile, thickness, 1);
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dish(key_profile, thickness);
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shape_hull(thickness_difference, depth_difference, 1);
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dish(depth_difference);
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}
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outside(key_profile, thickness);
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outside(thickness_difference);
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}
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}
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else{
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} else{
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difference(){
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shape_hull(key_profile, thickness, 1);
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dish(key_profile, thickness);
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shape_hull(thickness_difference, depth_difference, 1);
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dish(depth_difference);
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}
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}
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}
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//conicalish clipping shape to trim things off the outside of the keycap
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// conicalish clipping shape to trim things off the outside of the keycap
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// literally just a key with height of 2 to make sure nothing goes awry with dishing etc
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module outside(key_profile, thickness){
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module outside(thickness_difference){
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difference(){
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cube([100000,100000,100000],center = true);
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shape_hull(key_profile, thickness, 2);
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shape_hull(thickness_difference, 0, 2);
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}
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}
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//super basic hull shape without dish
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module shape_hull(key_profile, thickness, modifier){
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bottom_key_width = key_profile[0] ;
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bottom_key_height = key_profile[1];
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top_key_width_difference = key_profile[2];
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top_key_height_difference = key_profile[3];
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total_depth = key_profile[4] - thickness;
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top_tilt = key_profile[5];
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top_skew = key_profile[6];
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// super basic hull shape without dish
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// modifier multiplies the height and top differences of the shape,
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// which is only used for dishing to cut the dish off correctly
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// height_difference used for keytop thickness
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module shape_hull(thickness_difference, depth_difference, modifier){
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hull(){
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roundedRect([bottom_key_width*key_length - thickness,bottom_key_height - thickness,.001],1.5);
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// bottom_key_width + (key_length -1) * unit is the correct length of the
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// key. only 1u of the key should be bottom_key_width long; all others
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// should be 1u
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roundedRect([total_key_width - thickness_difference, total_key_height - thickness_difference, .001],1.5);
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translate([0,top_skew,total_depth * modifier])
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//height_difference outside of modifier because that doesnt make sense
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translate([0,top_skew,total_depth * modifier - depth_difference])
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rotate([-top_tilt,0,0])
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roundedRect([bottom_key_width*key_length - thickness -top_key_width_difference * modifier,bottom_key_height - thickness -top_key_height_difference * modifier,.001],1.5);
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roundedRect([total_key_width - thickness_difference - width_difference * modifier, total_key_height - thickness_difference - height_difference * modifier, .001],1.5);
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}
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}
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//dish related stuff
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//dish selector
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module dish(key_profile){ //this thing is a monster
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dish_type = key_profile[7];
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module dish(depth_difference){
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if(dish_type == 0){ // cylindrical dish
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cylindrical_dish(key_profile);
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cylindrical_dish(depth_difference);
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}
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else if (dish_type == 1) { // spherical dish
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spherical_dish(key_profile);
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spherical_dish(depth_difference);
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}
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else if (dish_type == 2){ // SIDEWAYS cylindrical dish - used for spacebar
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sideways_cylindrical_dish(key_profile);
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sideways_cylindrical_dish(depth_difference);
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}
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else if (dish_type == 3){
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// no dish
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}
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else if (dish_type == 3){
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// no dish
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}
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}
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module cylindrical_dish(key_profile){
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// names, so I don't go crazy
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total_key_width = key_profile[0];
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total_key_height = key_profile[1];
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width_difference = key_profile[2];
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height_difference = key_profile[3];
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total_depth = key_profile[4];
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top_tilt = key_profile[5];
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top_skew = key_profile[6];
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dish_type = key_profile[7];
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dish_depth = key_profile[8];
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dish_skew_x = key_profile[9];
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dish_skew_y = key_profile[10];
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//dependant variables
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key_width = total_key_width * key_length - width_difference;
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key_height = total_key_height - height_difference;
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module cylindrical_dish(depth_difference){
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/* we do some funky math here
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* basically you want to have the dish "dig in" to the keycap x millimeters
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* in order to do that you have to solve a small (2d) system of equations
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@ -477,18 +511,18 @@ module cylindrical_dish(key_profile){
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* the width of the keycap.
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*/
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// the distance you have to move the dish up so it digs in dish_depth millimeters
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chord_length = (pow(key_width, 2) - 4 * pow(dish_depth, 2)) / (8 * dish_depth);
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chord_length = (pow(top_total_key_width, 2) - 4 * pow(dish_depth, 2)) / (8 * dish_depth);
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//the radius of the dish
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rad = (pow(key_width, 2) + 4 * pow(dish_depth, 2)) / (8 * dish_depth);
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rad = (pow(top_total_key_width, 2) + 4 * pow(dish_depth, 2)) / (8 * dish_depth);
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if (inverted_dish == 1){
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translate([dish_skew_x, top_skew + dish_skew_y, total_depth])
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translate([dish_skew_x, top_skew + dish_skew_y, total_depth - depth_difference])
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rotate([90-top_tilt,0,0])
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translate([0,-chord_length,0])
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cylinder(h=100,r=rad, $fn=1024, center=true);
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}
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else{
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translate([dish_skew_x, top_skew + dish_skew_y, total_depth])
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translate([dish_skew_x, top_skew + dish_skew_y, total_depth - depth_difference])
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rotate([90-top_tilt,0,0])
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translate([0,chord_length,0])
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cylinder(h=100,r=rad, $fn=1024, center=true);
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@ -496,26 +530,9 @@ module cylindrical_dish(key_profile){
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}
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module spherical_dish(key_profile){
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// names, so I don't go crazy
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total_key_width = key_profile[0];
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total_key_height = key_profile[1];
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width_difference = key_profile[2];
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height_difference = key_profile[3];
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total_depth = key_profile[4];
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top_tilt = key_profile[5];
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top_skew = key_profile[6];
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dish_type = key_profile[7];
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dish_depth = key_profile[8];
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dish_skew_x = key_profile[9];
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dish_skew_y = key_profile[10];
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//dependant variables
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key_width = total_key_width * key_length - width_difference;
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key_height = total_key_height - height_difference;
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module spherical_dish(depth_difference){
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//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
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chord = pow((pow(key_width,2) + pow(key_height, 2)),0.5); //getting diagonal of the top
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chord = pow((pow(top_total_key_width,2) + pow(top_total_key_height, 2)),0.5); //getting diagonal of the top
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// the distance you have to move the dish up so it digs in dish_depth millimeters
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chord_length = (pow(chord, 2) - 4 * pow(dish_depth, 2)) / (8 * dish_depth);
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@ -523,99 +540,120 @@ module spherical_dish(key_profile){
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rad = (pow(chord, 2) + 4 * pow(dish_depth, 2)) / (8 * dish_depth);
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if (inverted_dish == 1){
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translate([dish_skew_x, top_skew + dish_skew_y, total_depth])
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rotate([-top_tilt,0,0])
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translate([dish_skew_x, top_skew + dish_skew_y, total_depth - depth_difference])
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rotate([-top_tilt,0,0])
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translate([0,0,-chord_length])
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sphere(r=rad, $fn=256);
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//NOTE: if your dish is long at all you might need to increase this number
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sphere(r=rad, $fn=512);
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}
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else{
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translate([dish_skew_x, top_skew + dish_skew_y, total_depth])
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rotate([-top_tilt,0,0])
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translate([dish_skew_x, top_skew + dish_skew_y, total_depth - depth_difference])
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rotate([-top_tilt,0,0])
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translate([0,0,chord_length])
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sphere(r=rad, $fn=256);
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}
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}
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module sideways_cylindrical_dish(key_profile){
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// names, so I don't go crazy
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total_key_width = key_profile[0];
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total_key_height = key_profile[1];
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width_difference = key_profile[2];
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height_difference = key_profile[3];
|
||||
total_depth = key_profile[4];
|
||||
top_tilt = key_profile[5];
|
||||
top_skew = key_profile[6];
|
||||
dish_type = key_profile[7];
|
||||
dish_depth = key_profile[8];
|
||||
dish_skew_x = key_profile[9];
|
||||
dish_skew_y = key_profile[10];
|
||||
|
||||
//dependant variables
|
||||
key_width = total_key_width * key_length - width_difference;
|
||||
key_height = total_key_height - height_difference;
|
||||
|
||||
|
||||
chord_length = (pow(key_height, 2) - 4 * pow(dish_depth, 2)) / (8 * dish_depth);
|
||||
rad = (pow(key_height, 2) + 4 * pow(dish_depth, 2)) / (8 * dish_depth);
|
||||
module sideways_cylindrical_dish(depth_difference){
|
||||
chord_length = (pow(top_total_key_height, 2) - 4 * pow(dish_depth, 2)) / (8 * dish_depth);
|
||||
rad = (pow(top_total_key_height, 2) + 4 * pow(dish_depth, 2)) / (8 * dish_depth);
|
||||
|
||||
if (inverted_dish == 1){
|
||||
translate([dish_skew_x, top_skew + dish_skew_y, total_depth])
|
||||
translate([dish_skew_x, top_skew + dish_skew_y, total_depth - depth_difference])
|
||||
rotate([90,top_tilt,90])
|
||||
translate([0,-chord_length,0])
|
||||
cylinder(h=key_width + 20,r=rad, $fn=1024, center=true); // +20 just cuz
|
||||
cylinder(h=total_key_width + 20,r=rad, $fn=1024, center=true); // +20 just cuz
|
||||
}
|
||||
else{
|
||||
translate([dish_skew_x, top_skew + dish_skew_y, total_depth])
|
||||
translate([dish_skew_x, top_skew + dish_skew_y, total_depth - depth_difference])
|
||||
rotate([90,top_tilt,90])
|
||||
translate([0,chord_length,0])
|
||||
cylinder(h=key_width + 20,r=rad, $fn=1024, center=true);
|
||||
cylinder(h=total_key_width + 20,r=rad, $fn=1024, center=true);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
//actual full key with space carved out and keystem/stabilizer connectors
|
||||
module key(key_profile){
|
||||
module key(){
|
||||
union(){
|
||||
difference(){
|
||||
shape(key_profile, 0);
|
||||
shape(0, 0);
|
||||
shape(wall_thickness, keytop_thickness);
|
||||
}
|
||||
}
|
||||
|
||||
translate([0,0,-.1])
|
||||
shape(key_profile, 3);
|
||||
}
|
||||
connector(key_profile,has_brim);
|
||||
if (stabilizers == 1){
|
||||
stabilizer_connectors(key_profile,has_brim);
|
||||
connector(has_brim);
|
||||
|
||||
if (stabilizers == 1){
|
||||
stabilizer_connectors(has_brim);
|
||||
}
|
||||
}
|
||||
|
||||
// ACTUAL OUTPUT
|
||||
difference(){
|
||||
//key();
|
||||
// preview cube, for seeing inside the keycap
|
||||
//cube([100,100,100]);
|
||||
}
|
||||
|
||||
minkowski_key();
|
||||
|
||||
|
||||
|
||||
|
||||
// Experimental stuff
|
||||
|
||||
|
||||
// key rounded with minkowski sum. still supports wall and keytop thickness.
|
||||
// use in actual output section. takes a long time to render with dishes.
|
||||
// required for keycap 11, G20 keycap.
|
||||
module minkowski_key(){
|
||||
union(){
|
||||
difference(){
|
||||
minkowski(){
|
||||
shape(minkowski_radius*2, minkowski_radius);
|
||||
difference(){
|
||||
sphere(r=minkowski_radius, $fn=24);
|
||||
translate([0,0,-minkowski_radius])
|
||||
cube([2*minkowski_radius,2*minkowski_radius,2*minkowski_radius], center=true);
|
||||
}
|
||||
}
|
||||
shape(wall_thickness, keytop_thickness);
|
||||
}
|
||||
}
|
||||
|
||||
connector(has_brim);
|
||||
|
||||
if (stabilizers == 1){
|
||||
stabilizer_connectors(has_brim);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
// ACTUAL OUTPUT
|
||||
key(key_profiles[key_profile]);
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
// non-implemented ISO enter test stuff
|
||||
|
||||
// NOT 3D, NOT CENTERED
|
||||
module fakeISOEnter(){
|
||||
// corollary is roundedRect
|
||||
module fakeISOEnter(thickness_difference){
|
||||
z = 0.001;
|
||||
radius = 2;
|
||||
/*TODO I figured it out. 18.16 is the actual keycap width / height,
|
||||
whereas 19.01 is the unit. ISO enter obeys that just like everything else,
|
||||
which means that it's height is 18.16 * 2 + (19.01 - 18.16) or, two
|
||||
keycap heights plus the space between them, also known as 18.16 +
|
||||
(19.01 * (key_height - 1)). this is followed by the width too. should fix
|
||||
to make this finally work*/
|
||||
unit = 18.16; // TODO probably not
|
||||
|
||||
// t is all modifications to the polygon array
|
||||
t = radius + thickness_difference/2;
|
||||
|
||||
pointArray = [
|
||||
[0 + radius,0 + radius],
|
||||
[unit*1.25 - radius, 0 + radius],
|
||||
[unit*1.25 - radius, unit*2 - radius],
|
||||
[unit*-.25 + radius, unit*2 - radius],
|
||||
[unit*-.25 + radius, unit*1 + radius],
|
||||
[0 + radius, unit*1 + radius]
|
||||
[0 + t,0 + t],
|
||||
[unit*1.25 - t, 0 + t],
|
||||
[unit*1.25 - t, unit*2 - t],
|
||||
[unit*-.25 + t, unit*2 - t],
|
||||
[unit*-.25 + t, unit*1 + t],
|
||||
[0 + t, unit*1 + t]
|
||||
];
|
||||
|
||||
minkowski(){
|
||||
|
|
@ -624,23 +662,15 @@ module fakeISOEnter(){
|
|||
}
|
||||
}
|
||||
|
||||
module ISOEnterShapeHull(key_profile, thickness, modifier){
|
||||
//corollary is shape_hull
|
||||
module ISOEnterShapeHull(thickness_difference, depth_difference, modifier){
|
||||
unit = 18.16; // TODO probably not
|
||||
height = 8 - depth_difference;
|
||||
length = 1.5 * unit; // TODO not used. need for dish
|
||||
|
||||
bottom_key_width = key_profile[0] ;
|
||||
bottom_key_height = key_profile[1];
|
||||
top_key_width_difference = key_profile[2];
|
||||
top_key_height_difference = key_profile[3];
|
||||
total_depth = key_profile[4] - thickness;
|
||||
top_tilt = key_profile[5];
|
||||
top_skew = key_profile[6];
|
||||
|
||||
top_width_scale_difference = (bottom_key_width - top_key_width_difference) / (bottom_key_width);
|
||||
top_height_scale_difference = (bottom_key_width - top_key_width_difference) / (bottom_key_width);
|
||||
|
||||
linear_extrude(height=total_depth*modifier, scale=[top_width_scale_difference, top_height_scale_difference]){
|
||||
translate([-0.125 * unit, unit*.5]) linear_extrude(height=height*modifier, scale=[.8, .9]){
|
||||
translate([-unit*.5, -unit*1.5]) minkowski(){
|
||||
fakeISOEnter();
|
||||
fakeISOEnter(thickness_difference);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue