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 */ 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=[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(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;