PseudoMakeMeKeyCapProfiles/MX_DES_Thumb.scad
Ulrich Spörlein 8228775bf8 Fix the models to sit flush on the XY plane.
The skin() function will twist the layers, so that the first layer is
above/below the XY plane a little from left to right. This means you
can't print them easily like this and can be fixed by producing more of
the outer shell and snipping it off at the XY plane exactly.
2022-03-20 11:02:54 +01:00

427 lines
23 KiB
OpenSCAD

use <scad-utils/morphology.scad> //for cheaper minwoski
use <scad-utils/transformations.scad>
use <scad-utils/shapes.scad>
use <scad-utils/trajectory.scad>
use <scad-utils/trajectory_path.scad>
use <sweep.scad>
use <skin.scad>
/*DES (Distorted Elliptical Saddle) Sculpted Profile for 6x3 and corne thumb
Version 2: Eliptical Rectangle
*/
mirror([0,0,0])keycap(
keyID = 3, //change profile refer to KeyParameters Struct
cutLen = 0, //Don't change. for chopped caps
Stem = true, //tusn on shell and stems
Dish = true, //turn on dish cut
Stab = 0,
visualizeDish = false, // turn on debug visual of Dish
crossSection = false, // center cut to check internal
homeDot = false, //turn on homedots
Legends = false
);
/*corne thumb hi pro*/
//color("royalblue")translate([-0,33,0]){
// translate([-15, -4, 0])rotate([0,0,30])mirror([1,0,0])keycap(keyID = 0, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
// translate([6, 0, 0])rotate([0,0,15])keycap(keyID = 1, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
// translate([26, 2.2, 0])rotate([0,0,0])keycap(keyID = 2, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
//}
/*corne thumb low pro*/
//color("gray"){
// translate([-15, -4, 0])rotate([0,0,30])keycap(keyID =3, cutLen = 0, Stem =true, Dish = true, visualizeDish = false, crossSection = false);
// translate([6, 0, 0])rotate([0,0,15])keycap(keyID = 6, cutLen = 0, Stem =true, Dish = true, visualizeDish = false, crossSection = false);
// translate([26, 2.2, 0])rotate([0,0,0])keycap(keyID = 7, cutLen = 0, Stem =true, Dish = true, visualizeDish = false, crossSection = false);
//}
/*kyria Thumb*/
//// translate([-39, 0, 0])rotate([0,0,30])translate([0,-19.5, 0])keycap(keyID = 15 , cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
// translate([-39, 0, 0])rotate([0,0,30])translate([0,-19.5, 0])keycap(keyID = 13, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
// translate([-39, 0, 0])rotate([0,0,30])translate([0,0, 0])keycap(keyID = 14, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
//// translate([-39, 0, 0])rotate([0,0,30])translate([0, -1, 0])keycap(keyID = 13, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
// // translate([-17, 0, 0])rotate([0,0,30])translate([0, 1 , 0])keycap(keyID = 12, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
// translate([-17, 0, 0])rotate([0,0,30])translate([0,-8.5, 0])mirror([1,0,0])keycap(keyID = 16, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
// translate([-17, 0, 0])rotate([0,0,30])translate([0, 10, 0])mirror([1,0,0])keycap(keyID = 17, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
// translate([6, 0, 0])rotate([0,0,15])keycap(keyID = 18, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
// translate([26, 2.2, 0])rotate([0,0,0])keycap(keyID = 19, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
//#translate([0,38,13])cube([18-5.7, 18-5.7,1],center = true);
//echo(len(keyParameters));
//Parameters
wallthickness = 2; // 1.5 for norm, 1.25 for cast master
topthickness = 2.5; // 3 for norm, 2.5 for cast master
stepsize = 50; //resolution of Trajectory
step = 6; //resolution of ellipes
fn = 16; //resolution of Rounded Rectangles: 60 for output
layers = 40; //resolution of vertical Sweep: 50 for output
dotRadius = 1.25; //home dot size
//---Stem param
Tol = 0.10;
stemRot = 0;
stemWid = 7.2;
stemLen = 5.5;
stemCrossHeight = 4;
extra_vertical = 0.6;
StemBrimDep = 0.25;
stemLayers = 50; //resolution of stem to cap top transition
keyParameters = //keyParameters[KeyID][ParameterID]
[
// BotWid, BotLen, TWDif, TLDif, keyh, WSft, LSft XSkew, YSkew, ZSkew, WEx, LEx, CapR0i, CapR0f, CapR1i, CapR1f, CapREx, StemEx
//corne thumb high pro
[17.16, 26.66, 6, 7, 12, 0, 0, -0, 10, -5, 2, 2, 1, 4.85, 1, 3, 2, 2], //R5 1.5 Corne thumb
[17.16, 17.16, 4, 5, 11, 0, 0, -0, 5, 0, 2, 2, 1, 5, 1, 3, 2, 2], //R5 corne thumb
[17.16, 17.16, 4, 6, 13, 0, 0, -0, 10, 15, 2, 2, 1, 5, 1, 2, 2, 2], //R5 corne thumb
//Low profile corne thumb
[17.16, 26.66, 6, 7, 9.0, 0, 0, -8, 10, -5, 2, 2, 1, 4.85, 1, 3, 2, 2], //T1R5 external rot 3
[17.16, 26.66, 6, 7, 9.0, 0, 0, -8, 10, -0, 2, 2, 1, 4.85, 1, 3, 2, 2], //T1R5 nuetral
[17.16, 26.66, 6, 7, 9.0, 0, 0, -8, 10, 5, 2, 2, 1, 4.85, 1, 3, 2, 2], //T1R5 internal rot Corne thumb
[17.16, 17.16, 4, 5, 10., 0, 0, -12, 5, 0, 2, 2, 1, 5, 1, 3, 2, 2], //R5 corne thumb
[17.16, 17.16, 4, 6, 11, 0, 0, -12, 10, 15, 2, 2, 1, 5, 1, 2, 2, 2], //R5 corne thumb
//Column high sculpt 3 row system
[17.16, 17.16, 6.5, 6.5,10.55, 0, 0, 9, 0, 0, 2, 2, 1, 5, 1, 3.5, 2, 2], //R4 8
[17.16, 17.16, 6.5, 6.5, 8.75, 0, .5, 4, 0, 0, 2, 2, 1, 5, 1, 3.5, 2, 2], //R3 Home
[17.16, 17.16, 6.5, 6.5, 9.75, 0, 0, -13, 0, 0, 2, 2, 1, 5, 1, 3.5, 2, 2], //R2
[17.16, 17.16, 6.5, 6.5, 8.75, 0, 0, 4, 0, 0, 2, 2, 1, 5, 1, 3.5, 2, 2], //R3 deepdish
//kyria Thumbs 13 ~ 19
[17.16, 35.56, 4, 7, 13.5, 0, 0, -8, 5, 0, 2, 2, 1, 6., 1, 3.5, 2, 2], //T0R1 2u
[17.16, 17.16, 6, 5, 11, -.5, 0, -9, 7, 10, 2, 2, 1, 5, 1, 3, 2, 2], //T0R1 1u
[17.16, 17.16, 6, 5, 13, -.5, 0, -9, 7, 5, 2, 2, 1, 5, 1, 3.5, 2, 2], //T0R2 1u
[17.16, 35.56, 6, 7, 11, 0, 0, -8, 10, -5, 2, 2, 1, 4.85, 1, 3.5, 2, 2], //T1R1 2u
[17.16, 17.16, 4, 6, 12, .5, 0, -13, -7, 10, 2, 2, 1, 5, 1, 2, 2, 2], //T1R1 1u
[17.16, 17.16, 6, 5, 15, -.5, 0, -9, -7, 0, 2, 2, 1, 5, 1, 3.5, 2, 2], //T1R2 1u
[17.16, 17.16, 4, 6, 13, .5, 0, -13, 10, 15, 2, 2, 1, 5, 1, 2, 2, 2], //T2R1
[17.16, 17.16, 4, 6, 13, 0, 0, -8, 10, 20, 2, 2, 1, 5, 1, 2, 2, 2], //T3R1
//lowest profile
[17.16, 17.16, 6.5, 6.5, 7.25, 0, 0, 3, 0, 0, 2, 2, 1, 5, 1, 3.5, 2, 2], //R4 6
[17.16, 17.16, 6.5, 6.5, 7, 0, .5, .001, 0, 0, 2, 2, 1, 5, 1, 3.5, 2, 2], //R3 Home
[17.16, 17.16, 6.5, 6.5, 7.25, 0, -.25, -5, 0, 0, 2, 2, 1, 5, 1, 3.5, 2, 2], //R2
[17.16, 17.16, 6.5, 6.5, 7, 0, .5, .001, 0, 0, 2, 2, 1, 5, 1, 3.5, 2, 2], //R3 deepdish
];
dishParameters = //dishParameter[keyID][ParameterID]
[
//FFwd1 FFwd2 FPit1 FPit2 DshDep DshHDif FArcIn FArcFn FArcEx BFwd1 BFwd2 BPit1 BPit2 BArcIn BArcFn BArcEx
//higt corne thumb
[ 8, 5, -1, -39, 4, 1.8, 9.5, 15, 2, 10, 4, 8, -30, 9.5, 20, 2], //R5
[ 5, 4.3, -2, -48, 5, 2, 10.5, 10, 2, 6, 4, 13, -30, 10.5, 18, 2], //R5
[ 5, 4.3, -2, -48, 4, 1.9, 11, 12, 2, 6, 4, 13, -35, 11, 28, 2], //R5
[ 8.5, 5.0, 7, -39, 4, 1.9, 9.5, 15, 2, 10, 4, 8, -30, 9.5, 20, 2], //R5
[ 8.3, 5.0, 7, -39, 4, 1.9, 9.5, 15, 2, 10, 4, 8, -30, 9.5, 20, 2], //R5
[ 8.5, 5.0, 7, -39, 4, 1.9, 9.5, 15, 2, 10, 4, 8, -30, 9.5, 20, 2], //R5
[ 5, 4.8, 5, -48, 5, 2.2, 10.5, 10, 2, 6, 4, 13, -30, 10.5, 18, 2], //R5
[ 5, 4.8, 5, -48, 4, 2.0, 11, 12, 2, 6, 4, 13, -35, 11, 28, 2], //R5
// low pro 3 row system
[ 6, 3, 18, -50, 5, 1.8, 8.8, 15, 2, 5, 4.4, 5, -55, 8.8, 15, 2], //R4
[ 5, 3.5, 10, -55, 5, 1.8, 8.5, 15, 2, 5, 3.7, 10, -55, 8.5, 15, 2], //R3
[ 6, 3, 10, -50, 5, 1.8, 8.8, 15, 2, 6, 4, 13, 30, 8.8, 16, 2], //R2
[ 4.8, 3.3, 18, -55, 5, 2.0, 8.5, 15, 2, 4.8, 3.3, 18, -55, 8.5, 15, 2], //R3 deep
//kyria
[ 13, 5.5, 5, -40, 4, 1.8, 10.5, 30, 2, 12, 8, 5, -5, 10.5, 40, 2], //T1R1 2u
[ 5, 4.4, 5, -48, 5, 2, 10.5, 10, 2, 6, 4, 2, -30, 10.5, 18, 2], //T0R1 1u
[ 5, 4.3, 5, -48, 5, 2, 10.5, 10, 2, 6, 4, 2, -30, 10.5, 18, 2], //T0R2 1u
[ 13, 4.5, 7, -39, 4, 1.8, 10.5, 15, 2, 13, 4, 8, -30, 10.5, 20, 2], //T1R1 2u
[ 5, 4.4, 5, -48, 4, 1.9, 11, 12, 2, 5.5, 3.5, 8, -50, 11, 28, 2], //T1R1 1u
[ 5, 4.3, 5, -48, 5, 2, 10.5, 10, 2, 6, 4, 2, -30, 10.5, 18, 2], //T1R2 1u
[ 5, 4.4, 5, -48, 4, 1.9, 11, 12, 2, 6, 4, 13, -35, 11, 28, 2], //T2R1
[ 5, 4.4, 5, -48, 4, 1.9, 11, 12, 2, 6, 4, 13, -35, 11, 28, 2], //T3R1
// low pro mil sculpt 3 row system
[ 6, 3, 18, -50, 5, 1.8, 8.8, 15, 2, 5, 4.4, 5, -55, 8.8, 15, 2], //R4
[ 5, 3.8, 8, -55, 5, 1.8, 8.5, 15, 2, 5, 4.2, 8, -55, 8.5, 15, 2], //R3
[ 6, 3, 10, -50, 5, 1.8, 8.8, 15, 2, 6, 4, 13, 30, 8.8, 16, 2], //R2
[5.25, 3., 16, -55, 5, 1.8, 8.5, 15, 2, 5.25, 3.1, 16, -55, 8.5, 15, 2], //R3 deep
];
function FrontForward1(keyID) = dishParameters[keyID][0]; //
function FrontForward2(keyID) = dishParameters[keyID][1]; //
function FrontPitch1(keyID) = dishParameters[keyID][2]; //
function FrontPitch2(keyID) = dishParameters[keyID][3]; //
function DishDepth(keyID) = dishParameters[keyID][4]; //
function DishHeightDif(keyID) = dishParameters[keyID][5]; //
function FrontInitArc(keyID) = dishParameters[keyID][6];
function FrontFinArc(keyID) = dishParameters[keyID][7];
function FrontArcExpo(keyID) = dishParameters[keyID][8];
function BackForward1(keyID) = dishParameters[keyID][9]; //
function BackForward2(keyID) = dishParameters[keyID][10]; //
function BackPitch1(keyID) = dishParameters[keyID][11]; //
function BackPitch2(keyID) = dishParameters[keyID][12]; //
function BackInitArc(keyID) = dishParameters[keyID][13];
function BackFinArc(keyID) = dishParameters[keyID][14];
function BackArcExpo(keyID) = dishParameters[keyID][15];
function BottomWidth(keyID) = keyParameters[keyID][0]; //
function BottomLength(keyID) = keyParameters[keyID][1]; //
function TopWidthDiff(keyID) = keyParameters[keyID][2]; //
function TopLenDiff(keyID) = keyParameters[keyID][3]; //
function KeyHeight(keyID) = keyParameters[keyID][4]; //
function TopWidShift(keyID) = keyParameters[keyID][5];
function TopLenShift(keyID) = keyParameters[keyID][6];
function XAngleSkew(keyID) = keyParameters[keyID][7];
function YAngleSkew(keyID) = keyParameters[keyID][8];
function ZAngleSkew(keyID) = keyParameters[keyID][9];
function WidExponent(keyID) = keyParameters[keyID][10];
function LenExponent(keyID) = keyParameters[keyID][11];
function CapRound0i(keyID) = keyParameters[keyID][12];
function CapRound0f(keyID) = keyParameters[keyID][13];
function CapRound1i(keyID) = keyParameters[keyID][14];
function CapRound1f(keyID) = keyParameters[keyID][15];
function ChamExponent(keyID) = keyParameters[keyID][16];
function StemExponent(keyID) = keyParameters[keyID][17];
function FrontTrajectory(keyID) =
[
trajectory(forward = FrontForward1(keyID), pitch = FrontPitch1(keyID), roll = 0), //more param available: yaw, roll, scale
trajectory(forward = FrontForward2(keyID), pitch = FrontPitch2(keyID)) //You can add more traj if you wish
];
function BackTrajectory (keyID) =
[
trajectory(forward = BackForward1(keyID), pitch = BackPitch1(keyID), roll = -0, yaw = 0),
trajectory(forward = BackForward2(keyID), pitch = BackPitch2(keyID)),
];
//------- function defining Dish Shapes
function ellipse(a, b, d = 0, rot1 = 0, rot2 = 360) = [for (t = [rot1:step:rot2]) [a*cos(t)+a, b*sin(t)*(1+d*cos(t))]]; //Centered at a apex to avoid inverted face
function DishShape (a,b,c,d) =
concat(
// [[c+a,b]],
ellipse(a, b, d = 0,rot1 = 90, rot2 = 270)
// [[c+a,-b]]
);
function oval_path(theta, phi, a, b, c, deform = 0) = [
a*cos(theta)*cos(phi), //x
c*sin(theta)*(1+deform*cos(theta)) , //
b*sin(phi),
];
path_trans2 = [for (t=[0:step:180]) translation(oval_path(t,0,10,15,2,0))*rotation([0,90,0])];
//--------------Function definng Cap
function CapTranslation(t, keyID) =
[
((1-t)/layers*TopWidShift(keyID)), //X shift
((1-t)/layers*TopLenShift(keyID)), //Y shift
(t/layers*KeyHeight(keyID)) //Z shift
];
function InnerTranslation(t, keyID) =
[
((1-t)/layers*TopWidShift(keyID)), //X shift
((1-t)/layers*TopLenShift(keyID)), //Y shift
(t/layers*(KeyHeight(keyID)-topthickness)) //Z shift
];
function CapRotation(t, keyID) =
[
((1-t)/layers*XAngleSkew(keyID)), //X shift
((1-t)/layers*YAngleSkew(keyID)), //Y shift
((1-t)/layers*ZAngleSkew(keyID)) //Z shift
];
function CapTransform(t, keyID) =
[
pow(t/layers, WidExponent(keyID))*(BottomWidth(keyID) -TopWidthDiff(keyID)) + (1-pow(t/layers, WidExponent(keyID)))*BottomWidth(keyID) ,
pow(t/layers, LenExponent(keyID))*(BottomLength(keyID)-TopLenDiff(keyID)) + (1-pow(t/layers, LenExponent(keyID)))*BottomLength(keyID)
];
function CapRoundness(t, keyID) =
[
pow(t/layers, ChamExponent(keyID))*(CapRound0f(keyID)) + (1-pow(t/layers, ChamExponent(keyID)))*CapRound0i(keyID),
pow(t/layers, ChamExponent(keyID))*(CapRound1f(keyID)) + (1-pow(t/layers, ChamExponent(keyID)))*CapRound1i(keyID)
];
function CapRadius(t, keyID) = pow(t/layers, ChamExponent(keyID))*ChamfFinRad(keyID) + (1-pow(t/layers, ChamExponent(keyID)))*ChamfInitRad(keyID);
function InnerTransform(t, keyID) =
[
pow(t/layers, WidExponent(keyID))*(BottomWidth(keyID) -TopLenDiff(keyID)-wallthickness*2) + (1-pow(t/layers, WidExponent(keyID)))*(BottomWidth(keyID) -wallthickness*2),
pow(t/layers, LenExponent(keyID))*(BottomLength(keyID)-TopLenDiff(keyID)-wallthickness*2) + (1-pow(t/layers, LenExponent(keyID)))*(BottomLength(keyID)-wallthickness*2)
];
function StemTranslation(t, keyID) =
[
((1-t)/stemLayers*TopWidShift(keyID)), //X shift
((1-t)/stemLayers*TopLenShift(keyID)), //Y shift
stemCrossHeight+.1+StemBrimDep + (t/stemLayers*(KeyHeight(keyID)- topthickness - stemCrossHeight-.1 -StemBrimDep)) //Z shift
];
function StemRotation(t, keyID) =
[
((1-t)/stemLayers*XAngleSkew(keyID)), //X shift
((1-t)/stemLayers*YAngleSkew(keyID)), //Y shift
((1-t)/stemLayers*ZAngleSkew(keyID)) //Z shift
];
function StemTransform(t, keyID) =
[
pow(t/stemLayers, StemExponent(keyID))*(BottomWidth(keyID) -TopLenDiff(keyID)-wallthickness) + (1-pow(t/stemLayers, StemExponent(keyID)))*(stemWid - 2*slop),
pow(t/stemLayers, StemExponent(keyID))*(BottomLength(keyID)-TopLenDiff(keyID)-wallthickness) + (1-pow(t/stemLayers, StemExponent(keyID)))*(stemLen - 2*slop)
];
function StemRadius(t, keyID) = pow(t/stemLayers,3)*3 + (1-pow(t/stemLayers, 3))*1;
//Stem Exponent
///----- KEY Builder Module
module keycap(keyID = 0, cutLen = 0, visualizeDish = false, rossSection = false, Dish = true, Stem = false, crossSection = true,Legends = false, homeDot = false, Stab = 0) {
//Set Parameters for dish shape
FrontPath = quantize_trajectories(FrontTrajectory(keyID), steps = stepsize, loop=false, start_position= $t*4);
BackPath = quantize_trajectories(BackTrajectory(keyID), steps = stepsize, loop=false, start_position= $t*4);
//Scaling initial and final dim tranformation by exponents
function FrontDishArc(t) = pow((t)/(len(FrontPath)),FrontArcExpo(keyID))*FrontFinArc(keyID) + (1-pow(t/(len(FrontPath)),FrontArcExpo(keyID)))*FrontInitArc(keyID);
function BackDishArc(t) = pow((t)/(len(FrontPath)),BackArcExpo(keyID))*BackFinArc(keyID) + (1-pow(t/(len(FrontPath)),BackArcExpo(keyID)))*BackInitArc(keyID);
FrontCurve = [ for(i=[0:len(FrontPath)-1]) transform(FrontPath[i], DishShape(DishDepth(keyID), FrontDishArc(i), 1, d = 0)) ];
BackCurve = [ for(i=[0:len(BackPath)-1]) transform(BackPath[i], DishShape(DishDepth(keyID), BackDishArc(i), 1, d = 0)) ];
//builds
difference(){
union(){
difference(){
skin([for (i=[-1:layers-1]) transform(translation(CapTranslation(i, keyID)) * rotation(CapRotation(i, keyID)), elliptical_rectangle(CapTransform(i, keyID), b = CapRoundness(i,keyID),fn=fn))]); //outer shell
//Cut inner shell
if(Stem == true){
translate([0,0,-.001])skin([for (i=[-1:layers-1]) transform(translation(InnerTranslation(i, keyID)) * rotation(CapRotation(i, keyID)), elliptical_rectangle(InnerTransform(i, keyID), b = CapRoundness(i,keyID),fn=fn))]);
}
// Cut off the extra bottom due to starting at layer -1
translate ([-50,-50,-10]) cube ([100,100,10], center=false);
}
if(Stem == true){
translate([0,0,StemBrimDep])rotate(stemRot)difference(){
//cylinderical Stem body
cylinder(d =5.5,KeyHeight(keyID)-StemBrimDep, $fn= 32);
skin(StemCurve);
skin(StemCurve2);
}
}
//cut for fonts and extra pattern for light?
}
//Cuts
//Fonts
if(Legends == true){
#rotate([-XAngleSkew(keyID),YAngleSkew(keyID),ZAngleSkew(keyID)])translate([-1,-5,KeyHeight(keyID)-2.5])linear_extrude(height = 1)text( text = "ver2", font = "Constantia:style=Bold", size = 3, valign = "center", halign = "center" );
// #rotate([-XAngleSkew(keyID),YAngleSkew(keyID),ZAngleSkew(keyID)])translate([0,-3.5,0])linear_extrude(height = 0.5)text( text = "Me", font = "Constantia:style=Bold", size = 3, valign = "center", halign = "center" );
}
//Dish Shape
if(Dish == true){
if(visualizeDish == false){
translate([-TopWidShift(keyID),.00001-TopLenShift(keyID),KeyHeight(keyID)-DishHeightDif(keyID)])rotate([0,-YAngleSkew(keyID),0])rotate([0,-90+XAngleSkew(keyID),90-ZAngleSkew(keyID)])skin(FrontCurve);
translate([-TopWidShift(keyID),-TopLenShift(keyID),KeyHeight(keyID)-DishHeightDif(keyID)])rotate([0,-YAngleSkew(keyID),0])rotate([0,-90-XAngleSkew(keyID),270-ZAngleSkew(keyID)])skin(BackCurve);
} else {
#translate([-TopWidShift(keyID),.00001-TopLenShift(keyID),KeyHeight(keyID)-DishHeightDif(keyID)]) rotate([0,-YAngleSkew(keyID),0])rotate([0,-90+XAngleSkew(keyID),90-ZAngleSkew(keyID)])skin(FrontCurve);
#translate([-TopWidShift(keyID),-TopLenShift(keyID),KeyHeight(keyID)-DishHeightDif(keyID)])rotate([0,-YAngleSkew(keyID),0])rotate([0,-90-XAngleSkew(keyID),270-ZAngleSkew(keyID)])skin(BackCurve);
}
}
if(crossSection == true) {
translate([0,-15,-.1])cube([15,30,15]);
}
}
//Homing dot
if(homeDot == true)translate([0,0,KeyHeight(keyID)-DishHeightDif(keyID)-.25])sphere(d = dotRadius);
}
//------------------stems
MXWid = 4.03/2+Tol; //horizontal lenght
MXLen = 4.23/2+Tol; //vertical length
MXWidT = 1.15/2+Tol; //horizontal thickness
MXLenT = 1.25/2+Tol; //vertical thickness
function stem_internal(sc=1) = sc*[
[MXLenT, MXLen],[MXLenT, MXWidT],[MXWid, MXWidT],
[MXWid, -MXWidT],[MXLenT, -MXWidT],[MXLenT, -MXLen],
[-MXLenT, -MXLen],[-MXLenT, -MXWidT],[-MXWid, -MXWidT],
[-MXWid,MXWidT],[-MXLenT, MXWidT],[-MXLenT, MXLen]
]; //2D stem cross with tolance offset and additonal transformation via jog
//trajectory();
function StemTrajectory() =
[
trajectory(forward = 5.25) //You can add more traj if you wish
];
StemPath = quantize_trajectories(StemTrajectory(), steps = 1 , loop=false, start_position= $t*4);
StemCurve = [ for(i=[0:len(StemPath)-1]) transform(StemPath[i], stem_internal()) ];
function StemTrajectory2() =
[
trajectory(forward = .5) //You can add more traj if you wish
];
StemPath2 = quantize_trajectories(StemTrajectory2(), steps = 10, loop=false, start_position= $t*4);
StemCurve2 = [ for(i=[0:len(StemPath2)-1]) transform(StemPath2[i]*scaling([(1.1-.1*i/(len(StemPath2)-1)),(1.1-.1*i/(len(StemPath2)-1)),1]), stem_internal()) ];
module choc_stem() {
translate([5.7/2,0,-3.4/2+2])difference(){
cube([1.25,3, 3.4], center= true);
translate([3.9,0,0])cylinder(d=7,3.4,center = true);
translate([-3.9,0,0])cylinder(d=7,3.4,center = true);
}
translate([-5.7/2,0,-3.4/2+2])difference(){
cube([1.25,3, 3.4], center= true);
translate([3.9,0,0])cylinder(d=7,3.4,center = true);
translate([-3.9,0,0])cylinder(d=7,3.4,center = true);
}
}
/// ----- helper functions
function rounded_rectangle_profile(size=[1,1],r=1,fn=32) = [
for (index = [0:fn-1])
let(a = index/fn*360)
r * [cos(a), sin(a)]
+ sign_x(index, fn) * [size[0]/2-r,0]
+ sign_y(index, fn) * [0,size[1]/2-r]
];
function elliptical_rectangle(a = [1,1], b =[1,1], fn=32) = [
for (index = [0:fn-1]) // section right
let(theta1 = -atan(a[1]/b[1])+ 2*atan(a[1]/b[1])*index/fn)
[b[1]*cos(theta1), a[1]*sin(theta1)]
+ [a[0]*cos(atan(b[0]/a[0])) , 0]
- [b[1]*cos(atan(a[1]/b[1])) , 0],
for(index = [0:fn-1]) // section Top
let(theta2 = atan(b[0]/a[0]) + (180 -2*atan(b[0]/a[0]))*index/fn)
[a[0]*cos(theta2), b[0]*sin(theta2)]
- [0, b[0]*sin(atan(b[0]/a[0]))]
+ [0, a[1]*sin(atan(a[1]/b[1]))],
for(index = [0:fn-1]) // section left
let(theta2 = -atan(a[1]/b[1])+180+ 2*atan(a[1]/b[1])*index/fn)
[b[1]*cos(theta2), a[1]*sin(theta2)]
- [a[0]*cos(atan(b[0]/a[0])) , 0]
+ [b[1]*cos(atan(a[1]/b[1])) , 0],
for(index = [0:fn-1]) // section Top
let(theta2 = atan(b[0]/a[0]) + 180 + (180 -2*atan(b[0]/a[0]))*index/fn)
[a[0]*cos(theta2), b[0]*sin(theta2)]
+ [0, b[0]*sin(atan(b[0]/a[0]))]
- [0, a[1]*sin(atan(a[1]/b[1]))]
]/2;
function sign_x(i,n) =
i < n/4 || i > n-n/4 ? 1 :
i > n/4 && i < n-n/4 ? -1 :
0;
function sign_y(i,n) =
i > 0 && i < n/2 ? 1 :
i > n/2 ? -1 :
0;