use //for cheaper minwoski use use use use use use /*DES (Distorted Elliptical Saddle) Sculpted Profile for 6x3 and corne thumb Version 2: Eliptical Rectangle */ //#square([18.16, 18.16], center = true); //TODO add shift mirror([0,0,0])keycap(keyID = 1, cutLen = 0, Stem =true, Dish = true, Stab = 0 , visualizeDish = true, crossSection = false, homeDot = false, Legends = false); //#translate([0,0,0])cube([14.5, 13.5, 10], center = true); // internal check //#translate([0,0,0])cube([17.5, 16.5, 10], center = true); // external check //n translate([0,19, 0])keycap(keyID = 3, cutLen = 0, Stem =true, Dish = true, visualizeDish = true, crossSection = true, homeDot = false, Legends = false); // translate([0,38, 0])mirror([0,1,0])keycap(keyID = 2, cutLen = 0, Stem =true, Dish = true, visualizeDish = false, crossSection = true, homeDot = false, Legends = false); RowHome = [0,2.5,5,2.5,0,0]; //for(Col = [6:6]){ // for(Row = [1:3]){ // translate([19*Col, 19*Row +RowHome[Col], 0])keycap(keyID = Col*4+Row, cutLen = 0, Stem = false, Dish = true, visualizeDish = false, crossSection = false,Legends = false); // } //} //#translate([0,38,13])cube([18-5.7, 18-5.7,1],center = true); //Parameters wallthickness = 1.2; topthickness = 3; // stepsize = 50; //resolution of Trajectory step = 1; //resolution of ellipes fn = 32; //resolution of Rounded Rectangles: 60 for output layers = 40; //resolution of vertical Sweep: 50 for output dotRadius = 1.25; //home dot size //---Stem param slop = 0.25; stemRot = 0; stemWid = 8; stemLen = 6; stemCrossHeight = 1.8; extra_vertical = 0.6; StemBrimDep = 0; stemLayers = 50; //resolution of stem to cap top transition driftAngle = 0; keyParameters = //keyParameters[KeyID][ParameterID] [ // BotWid, BotLen, TWDif, TLDif, keyh, WSft, LSft XSkew, YSkew, ZSkew, WEx, LEx, CapR0i, CapR0f, CapR1i, CapR1f, CapREx, StemEx //normie hipro [17.16, 17.16, 6.5, 6.5, 5.5, 0, 0, -3, 0, 0, 2, 2, 1, 5, 1, 3.5, 2, 2], //R5 1u [35.96, 17.16, 6.5, 6.5, 5.5, 0, 0, -3, 0, 0, 2, 2, 1, 5, 1, 3.5, 2, 2], //R5 2u ver 1 [35.96, 17.16, 6.5, 6.5, 5.5, 0, 0, -0, 0, 0, 2, 2, 1, 5, 1, 3.5, 2, 2], //R4 2u ver 1 [35.96, 17.16, 6.5, 6.5, 5.5, 0, 0, -5, 0, 0, 2, 2, 1, 5, 1, 3.5, 2, 2], //R3 2u ver 1 [16.90, 15.80, 7, 4, 5.5, 0, .0, 5, -0, -0, 2, 3, .75, 1, .75, 4, 2, 2], [16.80, 15.80, 7, 4, 5.5, 0, .0, 5, -0, -0, 2, 3, .75, 1, .75, 4, 2, 2], [17.16, 17.16, 6.5, 6.5, 14.0, 0, 0, -14, 0, 0, 2, 2, 1, 5, 1, 3.5, 2, 2], //R1 ]; dishParameters = //dishParameter[keyID][ParameterID] [ //FFwd1 FFwd2 FPit1 FPit2 DshDepi DishDepf,DshHDif FArcIn FArcFn FArcEx BFwd1 BFwd2 BPit1 BPit2 BArcIn BArcFn BArcEx [ 4, 4.2, -5, -20, 1.5, 3.25, 8.2, 9, 2, 5, 3, -5, -20, 8.2, 9, 2], //R5 2u [ 4, 4.2, -5, -20, 2, 4.25, 18.2, 21, 2, 5, 3, -5, -20, 18.2, 21, 2], //R5 2u [ 4, 4.2, -5, -15, 1, 3, 18.2, 21, 2, 4, 4.2, -5, -15, 18.2, 21, 2], //R4 2u [ 4, 4.2, -5, -15, 1, 3, 18.2, 21, 2, 5, 3, -5, -15, 18.2, 21, 2], //R3 2u [ 4., 1.5, 8, -55, 3, 7, 9.0, 9, 2, 4, 3, 3, -50, 9, 9, 2], //R3 [ 4., 1.5, -0, -50, 3, 7, 9.0, 9, 2, 4, 3, -10, -50, 9, 9, 2], //R3 [ 5, 3.5, 8, -50, 5, 1.8, 8.8, 15, 2, 6, 4, 13, 30, 8.8, 16, 2], //R1 ]; 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)), //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)), 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 = 270, rot2 =450), [[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 + (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 ]; 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, 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), DishDepth(keyID)+1.5, d = 0)) ]; BackCurve = [ for(i=[0:len(BackPath)-1]) transform(BackPath[i], DishShape(DishDepth(keyID), BackDishArc(i), DishDepth(keyID)+1.5, 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){ translate([0,0,StemBrimDep])rotate([0,0,stemRot])choc_stem(); // generate mx cherry stem, not compatible with box 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); //TODO add binding support? } #translate([0,0,-.001])skin([for (i=[0:stemLayers-1]) transform(translation(StemTranslation(i,keyID))*rotation(StemRotation(i, keyID)), rounded_rectangle_profile(StemTransform(i, keyID),fn=fn,r=StemRadius(i, keyID)))]); //Transition Support for taller profile } //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 $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) { D1=.15; D2=.05; H1=3.5; CrossDist = 1.75; difference(){ // outside shape linear_extrude(height = depth) { offset(r=1){ square(outer_cherry_stem(slop) - [2,2], center=true); } } inside_cherry_cross(slop); hull(){ translate([CrossDist,CrossDist-.1,0])cylinder(d1=D1, d2=D2, H1); translate([-CrossDist,-CrossDist+.1,0])cylinder(d1=D1, d2=D2, H1); } hull(){ translate([-CrossDist,CrossDist-.1])cylinder(d1=D1, d2=D2, H1); translate([CrossDist,-CrossDist+.1])cylinder(d1=D1, d2=D2, H1); } } } module choc_stem(draftAng = 2) { stemHeinght = 3.1; module Stem() { difference(){ hull(){ translate([0,0,-stemHeinght/2])cube([1.25-sin(draftAng)*stemHeinght,3-sin(draftAng)*stemHeinght,.001], center= true); translate([0,0,stemHeinght/2])cube([1.25,3,.001], center= true); } //cuts translate([3.9,0])cylinder(d1=7+sin(draftAng)*stemHeinght, d2=7,3.5, center = true); translate([-3.9,0])cylinder(d1=7+sin(draftAng)*stemHeinght,d2=7,3.5, center = true); } } translate([5.7/2,0,-stemHeinght/2+2])Stem(); translate([-5.7/2,0,-stemHeinght/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;