use //for cheaper minwoski use use use use use use //TODO add shift keycap(keyID = 7, cutLen = 0, Stem =true, Dish = true, visualizeDish = true, crossSection = false, homeDot = false); ////fullset //for(Row = [0:4]){ // for(Col = [0:5]){ // translate([20*Col, 20*Row, 0])keycap(keyID = Col*5+Row, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false); // } //} //Parameters wallthickness = 1.75; topthickness = 2.25; stepsize = 50; //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 keyParameters = //keyParameters[KeyID][ParameterID] [ // BotWid, BotLen, TWDif, TLDif, keyh, WSft, LSft XSkew, YSkew, ZSkew, WEx, LEx, CapRIn, CapRFn, CapREx //Column 0 [18.16, 18.16, 6, 6, 10, 0, 0, -13, -5, -12, 2, 2, .2, 3, 1], //R5 [18.16, 18.16, 6, 6, 8+4, 0, 0, 5, -10, 10, 2, 2, .2, 3, 1], //R4 [18.16, 18.16, 6, 6, 7+4, 0, 0, -2, -10, 5, 2, 2, .2, 3, 1], //R3 Home [18.16, 18.16, 6, 6, 8+4, 0, 0, -7, -10, -5, 2, 2, .2, 3, 1], //R2 [18.16, 18.16, 6, 6, 11+4, 0, 0, -13, -10, -10, 2, 2, .2, 3, 1], //R1 4 //Column 1 [18.16, 18.16, 6, 6, 10, 0, 0, -13, 5, 12, 2, 2, .2, 3, 1], //R5 [18.16, 18.16, 6, 6, 8+2, 0, 0, 5, -3, 0, 2, 2, .2, 3, 1], //R4 [18.16, 18.16, 6, 6, 7+2, 0, 0, -2, -3, 0, 2, 2, .2, 3, 1], //R3 Home [18.16, 18.16, 6, 6, 8+2, 0, 0, -7, -3, 0, 2, 2, .2, 3, 1], //R2 [18.16, 18.16, 6, 6, 11+2, 0, 0, -13, -3, 0, 2, 2, .2, 3, 1], //R1 9 //Column 2 middle [18.16, 18.16, 6, 6, 12, 0, 0, -13, 10, 15, 2, 2, .2, 3, 1], //R5 [18.16, 18.16, 6, 6, 8, 0, 0, 5, 0, 0, 2, 2, .2, 3, 1], //R4 [18.16, 18.16, 6, 6, 7, 0, 0, -2, 0, 0, 2, 2, .2, 3, 1], //R3 Home [18.16, 18.16, 6, 6, 8, 0, 0, -7, 0, 0, 2, 2, .2, 3, 1], //R2 [18.16, 18.16, 6, 6, 11, 0, 0, -13, 0, 0, 2, 2, .2, 3, 1], //R1 //Column 3 [18.16, 18.16, 6, 6, 11+3, 0, 0, 13, -4, 0, 2, 2, .2, 3, 1], //R5 [18.16, 18.16, 6, 6, 8+3, 0, 0, 5, -4, 0, 2, 2, .2, 3, 1], //R4 [18.16, 18.16, 6, 6, 7+3, 0, 0, -2, -4, 0, 2, 2, .2, 3, 1], //R3 Home [18.16, 18.16, 6, 6, 8+3, 0, 0, -7, -4, 0, 2, 2, .2, 3, 1], //R2 [18.16, 18.16, 6, 6, 11+3, 0, 0, -13, -4, 0, 2, 2, .2, 3, 1], //R1 //Column 4 [18.16, 18.16, 6, 6,11+5.5, 0, 0, 13, -10, 0, 2, 2, .2, 3, 1], //R5 [18.16, 18.16, 6, 6,8+5.5, 0, 0, 5, -10, 0, 2, 2, .2, 3, 1], //R4 [18.16, 18.16, 6, 6,7+5.5, 0, 0, -2, -10, 0, 2, 2, .2, 3, 1], //R3 Home [18.16, 18.16, 6, 6,8+5.5, 0, 0, -7, -10, 0, 2, 2, .2, 3, 1], //R2 [18.16, 18.16, 6, 6, 11+3, 0, 0, -13, 10, 0, 2, 2, .2, 3, 1], //R1 //Column 5 [18.16, 18.16, 6, 6, 11+4, 0, 0, 13, -6, 0, 2, 2, .2, 3, 1], //R5 [18.16, 18.16, 6, 6, 8+4, 0, 0, 5, -6, 0, 2, 2, .2, 3, 1], //R4 [18.16, 18.16, 6, 6, 7+4, 0, 0, -2, -6, 0, 2, 2, .2, 3, 1], //R3 Home [18.16, 18.16, 6, 6, 8+4, 0, 0, -7, -6, 0, 2, 2, .2, 3, 1], //R2 [18.16, 18.16, 6, 6, 11+5, 0, 0, -13, 10, 0, 2, 2, .2, 3, 1], //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 ChamfInitRad(keyID) = keyParameters[keyID][12]; function ChamfFinRad(keyID) = keyParameters[keyID][13]; function ChamExponent(keyID) = keyParameters[keyID][14]; dishParameters = //dishParameter[keyID][ParameterID] [ //FFwd1 FFwd2 FPit1 FPit2 DshDep DshHDif FArcIn FArcFn FArcEx BFwd1 BFwd2 BPit1 BPit2 BArcIn BArcFn BArcEx //Column 0 [ 5, 3, 5.8, -42, 3.5, 1.5, 8.5, 10, 2, 6, 4, 13, -30, 8.5, 18, 2], //R5 [ 6, 3, 15, -50, 3.5, 1.5, 8.5, 19, 2, 5, 4, 13, -50, 8.5, 16, 2], //R4 [ 6, 3, 18, -50, 4, 1.7, 8.5, 15, 2, 5, 4, 13, -30, 8.5, 16, 2], //R3 [ 6, 3, 18, -50, 3.5, 1.6, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R2 [ 6, 3, 18, -50, 3.5, 1.7, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 18, 2], //R1 //Column 1 [ 5, 3.5, 5, -48, 3.5, 1.5, 8.5, 10, 2, 6, 4, 13, -30, 8.5, 16, 2], //R5 [ 6, 3, 18, -50, 3.5, 1.5, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R4 [ 6, 3, 18, -50, 5, 1.7, 9, 15, 2, 5, 4, 13, -30, 9, 16, 2], //R3 [ 6, 3, 18, -50, 3.5, 1.5, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R2 [ 6, 3, 18, -50, 3.5, 1.5, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R1 //Column 2 [ 5, 3.5, 5, -48, 3.5, 1.7, 8.5, 10, 2, 6, 4, 13, -30, 8.5, 18, 2], //R5 [ 6, 3, 18, -50, 3.5, 1.5, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R4 [ 6, 3, 18, -50, 5, 1.7, 8.5, 15, 2, 5, 4, 13, -30, 8.5, 16, 2], //R3 [ 6, 3, 18, -50, 3.5, 1.5, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R2 [ 6, 3, 18, -50, 3.5, 1.5, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R1 //Column 3 [ 5, 3, 5, -50, 3.5, 1.5, 8.5, 10, 2, 6, 4, 13, -30, 8.5, 16, 2], //R5 [ 6, 3, 18, -50, 3.5, 1.6, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R4 [ 6, 3, 18, -50, 4, 1.6, 8.5, 15, 2, 5, 4, 13, -30, 8.5, 16, 2], //R3 [ 6, 3, 18, -50, 3.5, 1.5, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R2 [ 6, 3, 18, -50, 3.5, 1.5, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R1 //Column 4 [ 5, 3, 5, -50, 3.5, 1.6, 8.6, 12, 2, 6, 4, 13, -30, 8.6, 16, 2], //R5 [ 6, 3, 18, -50, 3.5, 1.6, 8.5, 17, 2, 6, 4, 13, -30, 8.5, 16, 2], //R4 [ 6, 3, 18, -50, 4, 1.7, 8.5, 15, 2, 5, 4, 13, -30, 8.5, 16, 2], //R3 [ 6, 3, 18, -50, 3.5, 1.6, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R2 [ 6, 3, 18, -50, 3.5, 1.6, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R1 //Column 5 [ 5, 3, 5, -50, 3.5, 1.5, 8.5, 10, 2, 6, 4, 13, -30, 8.5, 16, 2], //R5 [ 6, 3, 18, -50, 3.5, 1.5, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R4 [ 6, 3, 18, -50, 5, 1.7, 8.5, 15, 2, 5, 4, 13, -30, 8.5, 16, 2], //R3 [ 6, 3, 18, -50, 3.5, 1.5, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R2 [ 6, 3, 18, -50, 3.5, 1.5, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 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 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 = 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) -TopLenDiff(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 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 CapRadius(t, keyID) = pow(t/layers, keyParameters[keyID][14])*keyParameters[keyID][13] + (1-pow(t/layers, keyParameters[keyID][14]))*keyParameters[keyID][12]; ///----- KEY Builder Module module keycap(keyID = 0, cutLen = 0, visualizeDish = false, rossSection = false, Dish = true, Stem = false, homeDot = 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], 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)) ]; difference(){ union(){ difference(){ skin([for (i=[0:layers-1]) transform(translation(CapTranslation(i, keyID)) * rotation(CapRotation(i, keyID)), rounded_rectangle_profile(CapTransform(i, keyID),fn=fn,r=CapRadius(i, keyID)))]); //Cut inner if(Stem == true){ translate([0,0,-.001])skin([for (i=[0:layers-1]) transform(translation(InnerTranslation(i, keyID)) * rotation(CapRotation(i, keyID)), rounded_rectangle_profile(InnerTransform(i, keyID),fn=fn,r=CapRadius(i, keyID)))]); } } if(Stem == true)rotate([0,0,stemRot])cherry_stem(KeyHeight(keyID), slop); //cut for fonts and extra pattern for light? } //Cuts //Fonts // #rotate([-XAngleSkew(keyID),YAngleSkew(keyID),ZAngleSkew(keyID)])translate([0,4,KeyHeight(keyID)-2.5])linear_extrude(height = 0.5)text( text = "Why?", 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([0,.00001,KeyHeight(keyID)-DishHeightDif(keyID)])rotate([0,-YAngleSkew(keyID),0])rotate([0,-90+XAngleSkew(keyID),90-ZAngleSkew(keyID)])skin(FrontCurve); translate([0,0,KeyHeight(keyID)-DishHeightDif(keyID)])rotate([0,-YAngleSkew(keyID),0])rotate([0,-90-XAngleSkew(keyID),270-ZAngleSkew(keyID)])skin(BackCurve); } else { #translate([0,.00001,KeyHeight(keyID)-DishHeightDif(keyID)])rotate([0,-YAngleSkew(keyID),0])rotate([0,-90+XAngleSkew(keyID),90-ZAngleSkew(keyID)])skin(FrontCurve); #translate([0,0,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 = 1); } //------------------stems $fn = 32; slop = 0.3; stemRot = 0; extra_vertical = 0.6; function outer_cherry_stem(slop) = [7.2 - slop * 2, 5.5 - 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 = 4) { 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); } } /// ----- 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 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;