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Choc_Chicago_Steno_Thumb.scad
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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>
//use <z-butt.scad>
// Choc Chord version Chicago Stenographer with sculpte Thumb cluter
// change stemrot
mirror([1,0,0])keycap_cs_thumb(
keyID = 3, //change profile refer to KeyParameters Struct
cutLen = 0, //Don't change. for chopped caps
Stem = true, //tusn on shell and stems
StemRot = 90,//change stem orientation by deg
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
homeBar = false, //turn on homebar
Legends = false
);
//-Parameters
wallthickness = 1.1; // 1.75 for mx size, 1.1
topthickness = 2.5; //2 for phat 3 for chicago
stepsize = 40; //resolution of Trajectory
step =2; //resolution of ellipes
fn = 60; //resolution of Rounded Rectangles: 60 for output
layers = 50; //resolution of vertical Sweep: 50 for output
//---Stem param
slop = 0.3;
stemWid = 8;
stemLen = 6;
stemCrossHeight = 1.8;
extra_vertical = 0.6;
stemLayers = 50; //resolution of stem to cap top transition
//#cube([18.16, 18.16, 10], center = true); // sanity check border
//injection param
draftAngle = 0; //degree note:Stem Only
//TODO: Add wall thickness transition?
keyParameters = //keyParameters[KeyID][ParameterID]
[
// BotWid, BotLen, TWDif, TLDif, keyh, WSft, LSft XSkew, YSkew, ZSkew, WEx, LEx, CapR0i, CapR0f, CapR1i, CapR1f, CapREx, StemEx
//Column 0
//Levee: Chicago in choc Dimension for ref
[17.20, 16.00, 5.6, 5, 5.0, 0, .0, 5, -0, -0, 2, 2.5, .10, 2, .10, 3, 2, 2], //Levee Steno R2/R4
[17.20, 16.00, 5.6, 5, 4.6, 0, .0, 0, -0, -0, 2, 2.5, .10, 3, .10, 3, 2, 2], //Levee Steno R3
//Thumb
[17.20, 16.00, 4.25, 3.25, 5.0, -.5, 0.0, -3, -3, -0, 2, 2, .10, 2, .10, 2, 2, 2], //Thumb 1
[15.65, 26.4, 5.5, 3.25, 4.9, -.5, 0.0, -3, -2, -2, 2, 2, .3, 2, .3, 2.5, 2, 2], //Thumb 1.5
[15.65, 35.8, 4.25, 3.25, 4.9, -.25, 0.0, -2.5, -4, -2, 2, 3, .3, 2, .3, 2.5, 2, 2], //Thumb 2.0
//1.25 5
[21.3, 15.60, 5.6, 5, 4.5, 0, .0, 5, -0, -0, 2, 2, .5, 3, .5, 3, 2, 2], //Chicago Steno R2/R4 1.25u
[21.4, 15.60, 5.6, 5, 4.5, 0, .0, 0, -0, -0, 2, 2, .5, 3, .5, 3, 2, 2], //Chicago Steno R3 1.25u
//1.5 7
[26.15, 15.60, 5.6, 5, 4.5, 0, .0, 5, -0, -0, 2, 2, .5, 3, .5, 3, 2, 2], //Chicago Steno R2/R4 1.5
[26.15, 15.60, 5.6, 5, 4.5, 0, .0, 0, -0, -0, 2, 2, .5, 3, .5, 3, 2, 2], //Chicago Steno R3 1.5u
//1.75 9
[30.90, 15.60, 5.6, 5, 4.5, 0, .0, 5, -0, -0, 2, 2, .5, 3, .5, 3, 2, 2], //Chicago Steno R2/R4 1.5
[30.90, 15.60, 5.6, 5, 4.5, 0, .0, 0, -0, -0, 2, 2, .5, 3, .5, 3, 2, 2], //Chicago Steno R3 1.5u
// Ergo shits
[18.75, 18.75, 5.6, 5, 8, 0, .25, 0, -0, -0, 2, 2.5, .10, 3, .10, 3, 2, 2], //highpro 19.05 R2|4
[17.20, 16.00, 5.6, 5, 4.7, 0, .0, 3, -0, -0, 2, 2.5, .10, 2, .10, 3, 2, 2], //Chicago Steno R2 ALT
[17.20, 16.00, 5.6, 5, 5.5, 0, .0, 7, -0, -0, 2, 2.5, .10, 2, .10, 3, 2, 2], //Chicago Steno R1 Steap
[17.20, 16.00, 5.6, 5, 7.0, 0, .0, 10, -0, -0, 2, 2.5, .10, 2, .10, 3, 2, 2], //Chicago Steno R1 mild with alt R2
];
dishParameters = //dishParameter[keyID][ParameterID]
[
//FFwd1 FFwd2 FPit1 FPit2 DshDep DshHDif FArcIn FArcFn FArcEx BFwd1 BFwd2 BPit1 BPit2 BArcIn BArcFn BArcEx FTani FTanf BTani BTanf TanEX PhiInit PhiFin
//Column 0
[ 4.5, 4, 7, -50, 7, 1.7, 11, 17, 2, 4.5, 4, 2, -35, 11, 15, 2, 3, 4.5, 3, 4.5, 2, 203, 210], //Chicago Steno R2/R4
[ 4.5, 4, 5, -40, 7, 1.7, 11, 15, 2, 4.5, 4, 5, -40, 11, 15, 2, 4, 5, 4, 5, 2, 200, 210], //Chicago Steno R3 flat
[ 5, 5.5, 0, -40, 7, 1.7, 16, 18, 2, 5.5, 3.5, 5, -50, 16, 18, 2, 5, 3.75, 2, 3.75, 2, 199, 210], //T1
[ 10, 4.5, 0, -40, 7, 1.7, 16, 15, 2, 10, 3.5, 5, -50, 16, 18, 2, 3, 3.75, .75, 3.75, 2, 200, 210], //1.5u
[ 14.5, 4.5, 4, -40, 7, 1.7, 16, 18, 2, 14.5, 4.5, 2, -35, 16, 23, 2, 3, 3.75, .75, 3.75, 2, 200, 210], //2.0u
//1.25
[ 4.5, 4, 7, -40, 8, 1.8, 15, 20, 2, 4.5, 4, 2, -35, 15, 20, 2, 3, 5, 7, 5, 2, 200, 210], //Chicago Steno R2/R4
[ 4.5, 4, 5, -40, 8, 1.8, 15, 20, 2, 4.5, 4, 5, -40, 15, 20, 2, 3, 5, 7, 5, 2, 200, 210], //Chicago Steno R3
//1.5
[ 4.5, 4, 7, -40, 8, 1.8, 19, 25, 2, 4.5, 4, 2, -35, 19, 25, 2], //Chicago Steno R2/R4
[ 4.5, 4, 5, -40, 8, 1.8, 19, 25, 2, 4.5, 4, 5, -40, 19, 25, 2], //Chicago Steno R3
//1.75
[ 4.5, 4, 7, -40, 8, 1.8, 22.5, 27, 2, 4.5, 4, 2, -35, 22.5, 27, 2], //Chicago Steno R2/R4
[ 4.5, 4, 5, -40, 8, 1.8, 22.5, 27, 2, 4.5, 4, 5, -40, 22.5, 27, 2], //Chicago Steno R3
[ 5, 5, 5, -40, 7, 1.7, 11, 15, 2, 5, 5, 5, -40, 11, 15, 2], //Chicago Steno R3 flat
[ 4.5, 4, 7, -50, 7, 1.7, 11, 17, 2, 4.5, 4, 2, -35, 11, 15, 2], //Chicago Steno R1
[ 4.5, 4, 7, -50, 7, 1.7, 11, 17, 2, 4.5, 4, 2, -35, 11, 15, 2], //Chicago Steno R1
[ 4.5, 4, 7, -50, 7, 1.7, 11, 17, 2, 4.5, 4, 2, -35, 11, 15, 2], //Chicago Steno R1
];
SecondaryDishParam =
[
[ 6, 3.5, 7, -50, 3, 2, 8, 8, 2, 5, 5, 5, 15, 10, 20, 2], //Chicago Steno R2/R4
[ 6, 3.5, 7, -50, 3, 2.5, 8, 20, 3, 2, 4.2, 8, 0, 8, 8, 3], //Chicago Steno R3 flat
[ 6, 3.5, 7, -50, 3, 2.5, 8, 20, 3, 2, 4.2, 8, 0, 8, 8, 3], //Chicago Steno R3 chord
[ 6, 3.5, 7, -50, 3, 2, 8, 8, 2, 5, 5, 5, 15, 10, 20, 2], //Levee Steno R2/R4
[ 6, 3.5, 7, -50, 5, 1.0, 16, 23, 2, 6, 3.5, 7, -50, 16, 23, 2], //Levee Steno R2/R4
//1.25
[ 6, 3.5, 7, -50, 3, 2, 8, 8, 2, 5, 5, 5, 15, 10, 20, 2], //Chicago Steno R2/R4
[ 6, 3.5, 7, -50, 3, 2.5, 8, 20, 3, 2, 4.2, 8, 0, 8, 8, 3], //Chicago Steno R3 flat
//1.50
[ 6, 3.5, 7, -50, 3, 2, 8, 8, 2, 5, 5, 5, 15, 10, 20, 2], //Chicago Steno R2/R4
[ 6, 3.5, 7, -50, 3, 2.5, 8, 20, 3, 2, 4.2, 8, 0, 8, 8, 3], //Chicago Steno R3 flat
[ 6, 3.5, 7, -50, 3, 2, 8, 8, 2, 5, 5, 5, 15, 10, 20, 2], //Chicago Steno R1
[ 6, 3.5, 7, -50, 3, 2, 8, 8, 2, 5, 5, 5, 15, 10, 20, 2], //Chicago Steno R1
[ 6, 3.5, 7, -50, 3, 2, 8, 8, 2, 5, 5, 5, 15, 10, 20, 2], //Chicago Steno R1
];
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 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 ForwardTanInit(keyID)= dishParameters[keyID][16];
function ForwardTanFin(keyID) = dishParameters[keyID][17];
function BackTanInit(keyID) = dishParameters[keyID][18];
function BackTanFin(keyID) = dishParameters[keyID][19];
function TanArcExpo(keyID) = dishParameters[keyID][20];
function TransitionAngleInit(keyID) = dishParameters[keyID][21];
function TransitionAngleFin(keyID) = dishParameters[keyID][22];
function SFrontForward1(keyID) = SecondaryDishParam[keyID][0]; //
function SFrontForward2(keyID) = SecondaryDishParam[keyID][1]; //
function SFrontPitch1(keyID) = SecondaryDishParam[keyID][2]; //
function SFrontPitch2(keyID) = SecondaryDishParam[keyID][3]; //
function SDishDepth(keyID) = SecondaryDishParam[keyID][4]; //
function SDishHeightDif(keyID) = SecondaryDishParam[keyID][5]; //
function SFrontInitArc(keyID) = SecondaryDishParam[keyID][6];
function SFrontFinArc(keyID) = SecondaryDishParam[keyID][7];
function SFrontArcExpo(keyID) = SecondaryDishParam[keyID][8];
function SBackForward1(keyID) = SecondaryDishParam[keyID][9]; //
function SBackForward2(keyID) = SecondaryDishParam[keyID][10]; //
function SBackPitch1(keyID) = SecondaryDishParam[keyID][11]; //
function SBackPitch2(keyID) = SecondaryDishParam[keyID][12]; //
function SBackInitArc(keyID) = SecondaryDishParam[keyID][13];
function SBackFinArc(keyID) = SecondaryDishParam[keyID][14];
function SBackArcExpo(keyID) = SecondaryDishParam[keyID][15];
function FrontTrajectory(keyID) =
[
trajectory(forward = FrontForward1(keyID), pitch = FrontPitch1(keyID)), //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(backward = BackForward1(keyID), pitch = -BackPitch1(keyID)),
trajectory(backward = BackForward2(keyID), pitch = -BackPitch2(keyID)),
];
function SFrontTrajectory(keyID) =
[
trajectory(forward = SFrontForward1(keyID), pitch = SFrontPitch1(keyID)), //more param available: yaw, roll, scale
trajectory(forward = SFrontForward2(keyID), pitch = SFrontPitch2(keyID)), //You can add more traj if you wish
];
function SBackTrajectory (keyID) =
[
trajectory(forward = SBackForward1(keyID), pitch = SBackPitch1(keyID)),
trajectory(forward = SBackForward2(keyID), pitch = SBackPitch2(keyID)),
trajectory(forward = 4, pitch = -15),
trajectory(forward = 6, pitch = -5),
];
//------- 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 DishShape2 (a,b, phi = 200, theta, r) =
concat(
// [[c+a,b]],
ellipse(a, b, d = 0,rot1 = 90, rot2 = phi),
[for (t = [step:step*2:theta])let( sig = atan(a*cos(phi)/-b*sin(phi)))
[ r*cos(-atan(-a*cos(phi)/b*sin(phi))-t)
+a*cos(phi)
-r*cos(sig)
+a,
r*sin(-atan(-a*cos(phi)/b*sin(phi))-t)
+b*sin(phi)
+r*sin(sig)]
],
[[a,b*sin(phi)-r*sin(theta)*2]] //bounday vertex to clear ends
);
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) =
[
0, //X shift
0, //Y shift
stemCrossHeight+.1 + (t/stemLayers*(KeyHeight(keyID)- topthickness - stemCrossHeight-.1)) //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
];
// Swap width and length of little rectangular platform below the stem
// if the stem is rotated
function StemTransform(t, keyID, StemRot) =
StemRot == 0
? // stemRot is 0
[
pow(t/stemLayers, StemExponent(keyID))*(BottomWidth(keyID) -TopLenDiff(keyID)-wallthickness*2) + (1-pow(t/stemLayers, StemExponent(keyID)))*(stemWid - 2*slop),
pow(t/stemLayers, StemExponent(keyID))*(BottomLength(keyID)-TopLenDiff(keyID)-wallthickness*2) + (1-pow(t/stemLayers, StemExponent(keyID)))*(stemLen - 2*slop)
]
: // else swap stemWid and stemLen
[
pow(t/stemLayers, StemExponent(keyID))*(BottomWidth(keyID) -TopLenDiff(keyID)-wallthickness*2) + (1-pow(t/stemLayers, StemExponent(keyID)))*(stemLen - 2*slop),
pow(t/stemLayers, StemExponent(keyID))*(BottomLength(keyID)-TopLenDiff(keyID)-wallthickness*2) + (1-pow(t/stemLayers, StemExponent(keyID)))*(stemWid - 2*slop)
]
;
function StemRadius(t, keyID) = pow(t/stemLayers,3)*3 + (1-pow(t/stemLayers, 3))*1;
//Stem Exponent
//
function FTanRadius(t, keyID) = pow(t/stepsize,TanArcExpo(keyID) )*ForwardTanInit(keyID) + (1-pow(t/stepsize, TanArcExpo(keyID) ))*ForwardTanFin(keyID);
function BTanRadius(t, keyID) = pow(t/stepsize,TanArcExpo(keyID) )*BackTanInit(keyID) + (1-pow(t/stepsize, TanArcExpo(keyID) ))*BackTanFin(keyID);
function TanTransition(t, keyID) = pow(t/stepsize,TanArcExpo(keyID) )*TransitionAngleInit(keyID) + (1-pow(t/stepsize, TanArcExpo(keyID) ))*TransitionAngleFin(keyID);
///----- KEY Builder Module
module keycap_cs_thumb(keyID = 0, cutLen = 0, visualizeDish = false, crossSection = false, Dish = true, SecondaryDish = false, Stem = false, StemRot = 0, homeDot = false, homeBar = false, Stab = 0, Legends = false) {
//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], DishShape2( a= DishDepth(keyID), b= FrontDishArc(i), phi = TransitionAngleInit(keyID) , theta= 60
, r = FTanRadius(i, keyID))) ];
BackCurve = [ for(i=[0:len(BackPath)-1]) transform(BackPath[i], DishShape2(DishDepth(keyID), BackDishArc(i), phi = TransitionAngleInit(keyID), theta= 60
, r = BTanRadius(i, keyID))) ];
// for(i=[0:len(FrontPath)-1])echo ( len(transform(FrontPath[i], DishShape2( a= DishDepth(keyID), b= FrontDishArc(i), phi = TransitionAngleInit(keyID), theta= 60
// , r = FTanRadius(i, keyID)))), TanTransition(i, keyID));
//Secondary Dish
SFrontPath = quantize_trajectories(SFrontTrajectory(keyID), steps = stepsize, loop=false, start_position= $t*4);
SBackPath = quantize_trajectories(SBackTrajectory(keyID), steps = stepsize, loop=false, start_position= $t*4);
function SFrontDishArc(t) = pow((t)/(len(SFrontPath)),SFrontArcExpo(keyID))*SFrontFinArc(keyID) + (1-pow(t/(len(SFrontPath)),SFrontArcExpo(keyID)))*SFrontInitArc(keyID);
function SBackDishArc(t) = pow((t)/(len(SBackPath)),SBackArcExpo(keyID))*SBackFinArc(keyID) + (1-pow(t/(len(SFrontPath)),SBackArcExpo(keyID)))*SBackInitArc(keyID);
SFrontCurve = [ for(i=[0:len(SFrontPath)-1]) transform(SFrontPath[i], DishShape(SDishDepth(keyID), SFrontDishArc(i), 1, d = 0)) ];
SBackCurve = [ for(i=[0:len(SBackPath)-1]) transform(SBackPath[i], DishShape(SDishDepth(keyID), SBackDishArc(i), 1, d = 0)) ];
//builds
difference(){
union(){
difference(){
skin([for (i=[0: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=[0:layers-1]) transform(translation(InnerTranslation(i, keyID)) * rotation(CapRotation(i, keyID)), elliptical_rectangle(InnerTransform(i, keyID), b = CapRoundness(i,keyID),fn=fn))]);
}
}
if(Stem == true){
rotate([0,0,StemRot]){
choc_stem(draftAng = draftAngle);
if (Stab != 0){
translate([Stab/2,0,0])rotate([0,0,StemRot])cherry_stem(KeyHeight(keyID), slop);
translate([-Stab/2,0,0])rotate([0,0,StemRot])cherry_stem(KeyHeight(keyID), slop);
}
}
// Fix JLCPCB complaint about non-unified thumb keys
// Thanks to wolfwood for prividing it.
stemLayerAddition = (
keyID == 2 // 1u Thumb key
? 20
: keyID == 3 || keyId == 4 // 1.5u and 2u Thumb key
? 8
: // else
0
);
// I moved this outside of the above rotate operation so that the stem bed doesn't get rotated.
// To fix the little square being the wrong way when the stem is rotated, I swap the stemLen
// and stemWid parameters in StemTransform for rotated keys
translate([0,0,-.001])
skin([
for (i=[0:stemLayers-1 + stemLayerAddition])
transform(
translation(StemTranslation(i,keyID)),
rounded_rectangle_profile(StemTransform(i, keyID, StemRot),fn=fn,r=1 /*StemRadius(i, keyID) */ )
)
]); //outer shell
}
//cut for fonts and extra pattern for light?
if(visualizeDish == true && Dish == true){
#translate([-TopWidShift(keyID),.0001-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),90-ZAngleSkew(keyID)])skin(BackCurve);
}
}
//Cuts
//Fonts
if(cutLen != 0){
translate([sign(cutLen)*(BottomLength(keyID)+CapRound0i(keyID)+abs(cutLen))/2,0,0])
cube([BottomWidth(keyID)+CapRound1i(keyID)+1,BottomLength(keyID)+CapRound0i(keyID),50], center = true);
}
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){
translate([-TopWidShift(keyID),.0001-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),90-ZAngleSkew(keyID)])skin(BackCurve);
if(SecondaryDish == true){
#translate([BottomWidth(keyID)/2,-BottomLength(keyID)/2,KeyHeight(keyID)-SDishHeightDif(keyID)])rotate([0,-YAngleSkew(keyID),0])rotate([0,-90-XAngleSkew(keyID),270-ZAngleSkew(keyID)])skin(SBackCurve);
mirror([1,0,0])translate([BottomWidth(keyID)/2,-BottomLength(keyID)/2,KeyHeight(keyID)-SDishHeightDif(keyID)])rotate([0,-YAngleSkew(keyID),0])rotate([0,-90-XAngleSkew(keyID),270-ZAngleSkew(keyID)])skin(SBackCurve);
// translate([BottomWidth(keyID)/2,-BottomLength(keyID)/2,KeyHeight(keyID)-SDishHeightDif(keyID)])rotate([0,-YAngleSkew(keyID),0])rotate([0,-90+XAngleSkew(keyID),90-ZAngleSkew(keyID)])skin(SFrontCurve);
//
// rotate([0,0,180])translate([BottomWidth(keyID)/2,-BottomLength(keyID)/2,KeyHeight(keyID)-SDishHeightDif(keyID)])rotate([0,-YAngleSkew(keyID),0])rotate([0,-90-XAngleSkew(keyID),270-ZAngleSkew(keyID)])skin(SBackCurve);
// rotate([0,0,180])translate([BottomWidth(keyID)/2,-BottomLength(keyID)/2,KeyHeight(keyID)-SDishHeightDif(keyID)])rotate([0,-YAngleSkew(keyID),0])rotate([0,-90+XAngleSkew(keyID),90-ZAngleSkew(keyID)])skin(SFrontCurve);
}
}
if(crossSection == true) {
translate([0,-25,-.1])cube([15,50,15]);
}
}
//Homing dot
// if(homeDot == true)translate([0,0,KeyHeight(keyID)-DishHeightDif(keyID)-.25])sphere(d = 1);
// The same homedots as on the main profile
if(homeDot == true){
r = 0.5;
x = 2;
y = -4.5;
z = KeyHeight(keyID)-DishHeightDif(keyID) + 0.3 * r;
translate([x, y, z])sphere($fn=64, r);
translate([-x, y, z])sphere($fn=64, r);
}
if(homeBar == true) {
homey = -4.5;
homez = KeyHeight(keyID)-DishHeightDif(keyID) + 0.15;
l = 5.5;
r = 0.5;
translate([0, homey, homez])
rotate([0,90,0])
translate([0, 0, -l / 2])
union () {
translate([0, 0, r]) sphere(r = r);
translate([0, 0, r])cylinder(h = l -r * 2, r= r);
translate([0, 0, l - r])sphere(r = r);
};
};
}
//------------------stems
$fn = fn;
function outer_cherry_stem(slop) = [ stemWid - slop * 2, stemLen - slop * 2];
function outer_cherry_stabilizer_stem(slop) = [4.85 - slop * 2, 6.05 - slop * 2];
function outer_box_cherry_stem(slop) = [6 - slop, 6 - slop];
// .005 purely for aesthetics, to get rid of that ugly crosshatch
function cherry_cross(slop, extra_vertical = 0) = [
// horizontal tine
[4.03 + slop, 1.15 + slop / 3],
// vertical tine
[1.25 + slop / 3, 4.23 + extra_vertical + slop / 3 + .005],
];
module inside_cherry_cross(slop) {
// inside cross
// translation purely for aesthetic purposes, to get rid of that awful lattice
translate([0,0,-0.005]) {
linear_extrude(height = stemCrossHeight) {
square(cherry_cross(slop, extra_vertical)[0], center=true);
square(cherry_cross(slop, extra_vertical)[1], center=true);
}
}
// Guides to assist insertion and mitigate first layer squishing
{
for (i = cherry_cross(slop, extra_vertical)) hull() {
linear_extrude(height = 0.01, center = false) offset(delta = 0.4) square(i, center=true);
translate([0, 0, 0.5]) linear_extrude(height = 0.01, center = false) square(i, center=true);
}
}
}
module cherry_stem(depth, slop) {
difference(){
// outside shape
linear_extrude(height = depth) {
offset(r=1){
square(outer_cherry_stem(slop) - [2,2], center=true);
}
}
inside_cherry_cross(slop);
}
}
module choc_stem(draftAng = 5) {
stemHeight = 3.1;
dia = .15;
wids = 1.2/2;
lens = 2.9/2;
module Stem() {
difference(){
translate([0,0,-stemHeight/2])linear_extrude(height = stemHeight)hull(){
translate([wids-dia,-3/2])circle(d=dia);
translate([-wids+dia,-3/2])circle(d=dia);
translate([wids-dia, 3/2])circle(d=dia);
translate([-wids+dia, 3/2])circle(d=dia);
}
//cuts
translate([3.9,0])cylinder(d1=7+sin(draftAng)*stemHeight, d2=7,3.5, center = true, $fn = 64);
translate([-3.9,0])cylinder(d1=7+sin(draftAng)*stemHeight,d2=7,3.5, center = true, $fn = 64);
}
}
translate([5.7/2,0,-stemHeight/2+2])Stem();
translate([-5.7/2,0,-stemHeight/2+2])Stem();
}
/// ----- 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;
lp_key = [
// "base_sx", 18.5,
// "base_sy", 18.5,
"base_sx", 17.65,
"base_sy", 16.5,
"cavity_sx", 16.1,
"cavity_sy", 14.9,
"cavity_sz", 1.6,
"cavity_ch_xy", 1.6,
"indent_inset", 1.5
];
/*Tester */
//translate([0,0,0])lp_master_base(xu = 2, yu = 1 );
// lp_production_base();
// for(i = [0:2]){
// for(j = [0:1]){
// translate([(1-i)*21, (.5-j)*21,0]){
// translate([0, 0, -.05])rotate([0,0,0])mirror([0,j,0])keycap_cs_thumb(keyID = 2, cutLen = 0, Stem =false, Dish = true, SecondaryDish = false ,Stab = 0 , visualizeDish = false, crossSection = false, homeDot = false, Legends = false);
// }
// }
// }
//
// lp_production_base15();
// for(i = [0:1]){
// for(j = [0:1]){
// translate([(.75-i*1.5)*21, (.5-j)*21,0]){
// translate([0, 0, -.05])rotate([0,0,90])mirror([j,0,0])keycap_cs_thumb(keyID = 3, cutLen = 0, Stem =false, Dish = true, SecondaryDish = false ,Stab = 0 , visualizeDish = false, crossSection = false, homeDot = false, Legends = false);
// }
// }
// }
//translate([-19, 3.5, -.05])rotate([0,0,10])mirror([0,0,0])keycap_cs_thumb(keyID = 3, cutLen = 0, Stem =false, Dish = true, SecondaryDish = false ,Stab = 0 , visualizeDish = false, crossSection = false, homeDot = false, Legends = false);
//translate([0, -17, 0])rotate([0,0,0])mirror([0,0,0])keycap_cs_thumb(keyID = 0, cutLen = 0, Stem =false, Dish = true, SecondaryDish = false ,Stab = 0 , visualizeDish = false, crossSection = false, homeDot = false, Legends = false);
//translate([0, 34, 0])rotate([0,0,0])mirror([0,1,0])keycap_cs_thumb(keyID = 7, cutLen = 0, Stem =true, Dish = true, SecondaryDish = false ,Stab = 0 , visualizeDish = false, crossSection = false, homeDot = false, Legends = false);
//translate([0, -17, 0])rotate([0,0,0])mirror([0,0,0])keycap_cs_thumb(keyID = 0, cutLen = 0, Stem =true, Dish = true, SecondaryDish = false ,Stab = 0 , visualizeDish = false, crossSection = false, homeDot = false, Legends = false);
//translate([-3, 0, 0])rotate([0,0,0])mirror([0,0,0])keycap_cs_thumb(keyID = 2, cutLen = 7, Stem =true, Dish = true, SecondaryDish = false ,Stab = 0 , visualizeDish = false, crossSection = false, homeDot = false, Legends = false);
//translate([3, 0, 0])rotate([0,0,0])mirror([0,0,0])keycap_cs_thumb(keyID = 3, cutLen = -7, Stem =true, Dish = true, SecondaryDish = false ,Stab = 0 , visualizeDish = false, crossSection = false, homeDot = false, Legends = false);
//translate([0, 18, 0])rotate([0,0,0])mirror([0,0,0])keycap_cs_thumb(keyID = 4, cutLen = 0, Stem =true, Dish = true, SecondaryDish = false ,Stab = 0 , visualizeDish = false, crossSection = false, homeDot = false, Legends = false);
// translate([0,-17.5, 0])rotate([0,0,0])mirror([0,1,0])keycap_cs_thumb(keyID = 1, cutLen = -ChocCut, Stem =true, Dish = true, SecondaryDish = true ,Stab = 0 , visualizeDish = false, crossSection = false, homeDot = false, Legends = false);
//
// translate([18,-17.5, 0])rotate([0,0,180])mirror([0,0,0])keycap_cs_thumb(keyID = 1, cutLen = -ChocCut, Stem =true, Dish = true, SecondaryDish = true ,Stab = 0 , visualizeDish = false, crossSection = false, homeDot = false, Legends = false);
// translate([18, 0, 0])rotate([0,0,180])mirror([0,1,0])keycap_cs_thumb(keyID = 1, cutLen = -ChocCut, Stem =true, Dish = true, SecondaryDish = true ,Stab = 0 , visualizeDish = false, crossSection = false, homeDot = true, Legends = false);
//
//#translate([0,17,0])cube([14.5, 13.5, 4], center = true); // internal check
//#translate([0,0,5])cube([19.05, 19.05, 10], center = true); // internal check
//#translate([0,0,0])cube([17.5, 16.5, 10], center = true); // internal check