reorganizing and adding plate script

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Bob - Home - Windows 2015-04-14 00:50:30 -04:00
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// Row 5? Cherry MX key
//change to round things better
$fn = 64;
//scale of inner to outer shape
key_wall_thickness_width = .8;
key_wall_thickness_height = .8;
key_wall_thickness_depth = .8;
//length in units of key
key_length = 1;
// dimensions of cross
// horizontal cross bar width
horizontal_cross_width = 1.4;
// vertical cross bar width
vertical_cross_width = 1.3;
// cross length
cross_length = 4.4;
//extra vertical cross length - change if you dont want the cruciform to be in 2 parts
extra_vertical_cross_length = 1.1;
//dimensions of connector
// outer cross extra length in x
extra_outer_cross_width = 2.11;
// outer cross extra length in y
extra_outer_cross_height = 1.1;
// cross depth, stem height is 3.4mm
cross_depth = 4;
//connector brim
//enable brim for connector
has_brim = 1;
//brim radius. 11 ensconces normal keycap stem in normal keycap
brim_radius = 11;
//brim depth
brim_depth = .3;
//keycap type, [0..11]
key_type = 0;
//whether stabilizer connectors are enabled
stabilizers = 0;
//stabilizer distance
stabilizer_distance = 50;
inverted_dish = 0;
//profile specific stuff
/*god, I would love a class right here
here we have, for lack of a better implementation, an array
that defines the more intimate aspects of a key.
order is thus:
1. Bottom Key Width: width of the immediate bottom of the key
2. Bottom Key Height: height of the immediate bottom of the key
3. Top Key Width Difference: mm to subtract from bottom key width to create top key width
4. Top Key Height Difference: mm to subtract from bottom key height to create top key height
5. total Depth: how tall the total in the switch is before dishing
6. Top Tilt: X rotation of the top. Top and dish obj are rotated
7. Top Skew: Y skew of the top of the key relative to the bottom. DCS has some, DSA has none (its centered)
8. Dish Type: type of dishing. currently sphere and cylinder
9. Dish Depth: how many mm to cut into the key with
10. Dish Radius: radius of dish obj, the Sphere or Cylinder that cuts into the keycap
*/
key_profiles = [
//DCS Profile
[ //DCS ROW 5...erm...ish
18.16, // Bottom Key Width
18.16, // Bottom Key Height
6, // Top Key Width Difference
4, // Top Key Height Difference
11.5, // total Depth
-6, // Top Tilt
1.75,// Top Skew
//Dish Profile
0, // Dish Type
1, // Dish Depth
0, // Dish Skew X
0 // DIsh Skew Y
],
[ //DCS ROW 1
18.16, // Bottom Key Width
18.16, // Bottom Key Height
6, // Top Key Width Difference
4, // Top Key Height Difference
8.5, // total Depth
-1, // Top Tilt
1.75,// Top Skew
//Dish Profile
0, // Dish Type
1, // Dish Depth
0, // Dish Skew X
0 // DIsh Skew Y
],
[ //DCS ROW 2
18.16, // Bottom Key Width
18.16, // Bottom Key Height
6.2, // Top Key Width Difference
4, // Top Key Height Difference
7.5, // total Depth
3, // Top Tilt
1.75,// Top Skew
//Dish Profile
0, // Dish Type
1, // Dish Depth
0, // Dish Skew X
0 // DIsh Skew Y
],
[ //DCS ROW 3
18.16, // Bottom Key Width
18.16, // Bottom Key Height
6, // Top Key Width Difference
4, // Top Key Height Difference
6.2, // total Depth
7, // Top Tilt
1.75,// Top Skew
//Dish Profile
0, // Dish Type
1, // Dish Depth
0, // Dish Skew X
0 // DIsh Skew Y
],
[ //DCS ROW 4
18.16, // Bottom Key Width
18.16, // Bottom Key Height
6, // Top Key Width Difference
4, // Top Key Height Difference
6.2, // total Depth
16, // Top Tilt
1.75,// Top Skew
//Dish Profile
0, // Dish Type
1, // Dish Depth
0, // Dish Skew X
0 // DIsh Skew Y
],
//DSA Profile
[ //DSA ROW 3
18.4, // Bottom Key Width
18.4, // Bottom Key Height
5.7, // Top Key Width Difference
5.7, // Top Key Height Difference
7.4, // total Depth
0, // Top Tilt
0, // Top Skew
//Dish Profile
1, // Dish Type
1.2, // Dish Depth
0, // Dish Skew X
0 // DIsh Skew Y
],
//SA Proile
[ //SA ROW 1
18.4, // Bottom Key Width
18.4, // Bottom Key Height
5.7, // Top Key Width Difference
5.7, // Top Key Height Difference
13.73, // total Depth, fudged
0, // Top Tilt
0, // Top Skew
//Dish Profile
1, // Dish Type
2, // Dish Depth
0, // Dish Skew X
0 // DIsh Skew Y
],
[ //SA ROW 2
18.4, // Bottom Key Width
18.4, // Bottom Key Height
5.7, // Top Key Width Difference
5.7, // Top Key Height Difference
11.73, // total Depth
0, // Top Tilt
0, // Top Skew
//Dish Profile
1, // Dish Type
2, // Dish Depth
0, // Dish Skew X
0 // DIsh Skew Y
],
[ //SA ROW 3
18.4, // Bottom Key Width
18.4, // Bottom Key Height
5.7, // Top Key Width Difference
5.7, // Top Key Height Difference
11.73, // total Depth
0, // Top Tilt
0, // Top Skew
//Dish Profile
1, // Dish Type
1.6, // Dish Depth
0, // Dish Skew X
0 // DIsh Skew Y
],
[ //SA ROW 4
18.4, // Bottom Key Width
18.4, // Bottom Key Height
5.7, // Top Key Width Difference
5.7, // Top Key Height Difference
11.73, // total Depth
0, // Top Tilt
0, // Top Skew
//Dish Profile
1, // Dish Type
2, // Dish Depth
0, // Dish Skew X
0 // DIsh Skew Y
],
[ //DCS ROW 2 SPACEBAR
18.16, // Bottom Key Width
18.16, // Bottom Key Height
6.2, // Top Key Width Difference
4, // Top Key Height Difference
7.5, // total Depth
3, // Top Tilt
1.75,// Top Skew
//Dish Profile
2, // Dish Type
1, // Dish Depth
0, // Dish Skew X
0 // DIsh Skew Y
],
[ //DCS ROW 4 SPACEBAR (ORIGINAL)
18.16, // Bottom Key Width
18.16, // Bottom Key Height
6, // Top Key Width Difference
4, // Top Key Height Difference
6.2, // total Depth
16, // Top Tilt
1.75,// Top Skew
//Dish Profile
2, // Dish Type
1, // Dish Depth
0, // Dish Skew X
0 // DIsh Skew Y
],
];
//libraries. they generate geometry
//that is used by other things to generate features
//centered
module roundedRect(size, radius) {
x = size[0];
y = size[1];
z = size[2];
translate([-x/2,-y/2,0])
linear_extrude(height=z)
hull() {
translate([radius, radius, 0])
circle(r=radius);
translate([x - radius, radius, 0])
circle(r=radius);
translate([x - radius, y - radius, 0])
circle(r=radius);
translate([radius, y - radius, 0])
circle(r=radius);
}
}
//bottom we can use to anchor things
module inside(key_profile)
{
difference(){
translate([0,0,50])
cube([100,100,100],center=true);
translate([0,0,-.1])
shape(key_profile, 3);
}
}
// inside of connector
module cross(){
translate([0,0,(cross_depth)/2])
union(){
cube([vertical_cross_width,cross_length+extra_vertical_cross_length,cross_depth], center=true );//remove +2 to print with cross
cube([cross_length,horizontal_cross_width,cross_depth], center=true );
}
}
//i h8 u scad
module shape(key_profile, thickness){
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];
if (inverted_dish == 1){
difference(){
union(){
shape_hull(key_profile, thickness, 1);
dish(key_profile, thickness);
}
outside(key_profile, thickness);
}
}
else{
difference(){
shape_hull(key_profile, thickness, 1);
dish(key_profile, thickness);
}
}
}
//conicalish clipping shape to trim things off the outside of the keycap
module outside(key_profile, thickness){
difference(){
cube([100000,100000,100000],center = true);
shape_hull(key_profile, thickness, 2);
}
}
//super basic hull shape without dish
module shape_hull(key_profile, thickness, modifier){
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];
hull(){
roundedRect([bottom_key_width*key_length - thickness,bottom_key_height - thickness,.001],1.5);
translate([0,top_skew,total_depth * modifier])
rotate([-top_tilt,0,0])
roundedRect([bottom_key_width*key_length - thickness -top_key_width_difference * modifier,bottom_key_height - thickness -top_key_height_difference * modifier,.001],1.5);
}
}
//end libraries
//dish selector
module dish(key_profile){ //this thing is a monster
// names, so I don't go crazy
total_key_width = key_profile[0];
total_key_height = key_profile[1];
width_difference = key_profile[2];
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;
if(dish_type == 0){ // cylindrical dish
/* we do some funky math here
* basically you want to have the dish "dig in" to the keycap x millimeters
* in order to do that you have to solve a small (2d) system of equations
* where the chord of the spherical cross section of the dish is
* the width of the keycap.
*/
// the distance you have to move the dish up so it digs in dish_depth millimeters
chord_length = (pow(key_width, 2) - 4 * pow(dish_depth, 2)) / (8 * dish_depth);
//the radius of the dish
rad = (pow(key_width, 2) + 4 * pow(dish_depth, 2)) / (8 * dish_depth);
if (inverted_dish == 1){
translate([dish_skew_x, top_skew + dish_skew_y, total_depth])
rotate([90-top_tilt,0,0])
translate([0,-chord_length,0])
cylinder(h=100,r=rad, $fn=1024, center=true);
}
else{
translate([dish_skew_x, top_skew + dish_skew_y, total_depth])
rotate([90-top_tilt,0,0])
translate([0,chord_length,0])
cylinder(h=100,r=rad, $fn=1024, center=true);
}
}
else if (dish_type == 1) { // spherical dish
//same thing here, but we need the corners to just touch - so we have to find the hypotenuse of the top
chord = pow((pow(key_width,2) + pow(key_height, 2)),0.5); //getting diagonal of the top
// the distance you have to move the dish up so it digs in dish_depth millimeters
chord_length = (pow(chord, 2) - 4 * pow(dish_depth, 2)) / (8 * dish_depth);
//the radius of the dish
rad = (pow(chord, 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([0,0,-chord_length])
sphere(r=rad, $fn=256);
}
else{
translate([dish_skew_x, top_skew + dish_skew_y, total_depth])
translate([0,0,chord_length])
sphere(r=rad, $fn=256);
}
}
else if (dish_type == 2){// SIDEWAYS cylindrical dish - used for spacebar
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);
if (inverted_dish == 1){
translate([dish_skew_x, top_skew + dish_skew_y, total_depth])
rotate([90,top_tilt,90])
translate([0,-chord_length,0])
cylinder(h=key_width + 20,r=rad, $fn=1024, center=true); // +20 just cuz
}
else{
translate([dish_skew_x, top_skew + dish_skew_y, total_depth])
rotate([90,top_tilt,90])
translate([0,chord_length,0])
cylinder(h=key_width + 20,r=rad, $fn=1024, center=true);
}
}
}
//whole connector
module connector(key_profile,has_brim){
difference(){
difference(){
union(){
translate(
[
-(cross_length+extra_outer_cross_width)/2,
-(cross_length+extra_outer_cross_height)/2,
0
]
)
cube([cross_length+extra_outer_cross_width,cross_length+extra_outer_cross_height,50]);
if (has_brim == 1){ cylinder(r=brim_radius,h=brim_depth); }
}
cross();
}
inside(key_profile);
}
}
//stabilizer connectors
module stabilizer_connectors(key_profile,has_brim){
translate([stabilizer_distance,0,0]) connector(key_profile, has_brim);
translate([-stabilizer_distance,0,0]) connector(key_profile, has_brim);
}
//actual full key with space carved out and keystem/stabilizer connectors
module key(key_profile){
union(){
difference(){
shape(key_profile, 0);
translate([0,0,-.1])
shape(key_profile, 3);
}
connector(key_profile,has_brim);
if (stabilizers == 1){
stabilizer_connectors(key_profile,has_brim);
}
}
}
key(key_profiles[key_type]);