mirror of
https://github.com/pseudoku/PseudoMakeMeKeyCapProfiles.git
synced 2024-05-20 01:08:12 +00:00
385 lines
19 KiB
OpenSCAD
385 lines
19 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) Profile for 6x3 and corne thumb
|
|
|
|
//TODO add shift
|
|
translate([0,0,0])rotate([0,0,0])
|
|
translate([0,19,0])rotate([0,0,90])
|
|
translate([-19,19,0])rotate([0,0,180])
|
|
translate([-19,0,0])rotate([0,0,270])
|
|
|
|
keycap(keyID = 1, cutLen = 0, Stem =true, Dish = true, visualizeDish = true, crossSection = false, homeDot = false, Legends = true);
|
|
|
|
}
|
|
////fullsetee
|
|
RowHome = [0,2.5,5,2.5,0,0];
|
|
|
|
//for(Col = [0:0]){
|
|
// for(Row = [1:2]){
|
|
// translate([19*Col, 19*Row +RowHome[Col], 0])keycap(keyID = Col*4+Row, cutLen = 0, Stem = true, Dish = true, visualizeDish = true, crossSection = true,Legends = false);
|
|
// }
|
|
//}
|
|
|
|
////// thumb
|
|
// translate([-15, -4, 0])rotate([0,0,30])keycap(keyID = 0, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
|
|
// translate([10, 0, 0])rotate([0,0,15])keycap(keyID = 4, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
|
|
// translate([31, 2.2, 0])rotate([0,0,0])keycap(keyID = 8, cutLen = 0, Stem =false, Dish = true, visualizeDish = false, crossSection = false);
|
|
|
|
//Parameters
|
|
wallthickness = 1.75;
|
|
topthickness = 2;
|
|
stepsize = 50; //resolution of Trajectory
|
|
step = 2; //resolution of ellipes
|
|
fn = 64; //resolution of Rounded Rectangles: 60 for output
|
|
layers = 50; //resolution of vertical Sweep: 50 for output
|
|
|
|
//---Stem param
|
|
slop = 0.3;
|
|
stemRot = 0;
|
|
stemWid = 8;
|
|
stemLen = 6;
|
|
stemCrossHeight = 1.8;
|
|
extra_vertical = 0.6;
|
|
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, CapRIn, CapRFn, CapREx, StemEx
|
|
//Column 0
|
|
[18.16, 18.16, 3, 3, 6, 0, 0, 3, -0, -0, 2, 2, 1, 3, 1, 2], //R5 0
|
|
[18.16, 18.7, 3, 1.5, 4.5, 0, -.2, 3, -0, -0, 2, 3, 2, 1, 2, 2], //R4
|
|
[18.16, 18.16, 3, 1.5, 4.5, 0, .5, -3, -0, -0, 2, 2, 1, 3, 1, 2], //R3 Home
|
|
[18.16, 18.16, 4, 4, 5, 0, 0, -2, -0, -0, 2, 2, .2, 3, 1, 2], //R2
|
|
//Column 1
|
|
[18.16, 18.16, 6, 6, 10, 0, 0, -13, 5, 0, 2, 2, .2, 3, 1, 2], //R5 4
|
|
[18.16, 18.16, 3, 1.5, 4.5, 0, -.5, 3, -0, -0, 2, 2, 1, 2, 1, 2], //R4
|
|
[18.16, 18.16, 3, 1.5, 4.5, 0, .5, -3, -0, -0, 2, 2, 1, 2, 1, 2], //R3 Home
|
|
[18.16, 18.16, 7, 7, 8+3, 0, 0, -12, -3, 0, 2, 2, .2, 3, 1, 2], //R2
|
|
//Column 2 middle
|
|
[18.16, 18.16, 6, 6, 12, 0, 0, -13, 10, 15, 2, 2, .2, 3, 1, 2], //R5 8
|
|
[18.16, 18.16, 7, 7, 8, 0, 0, 9, 0, 0, 2, 2, .2, 3, 1, 2], //R4
|
|
[18.16, 18.16, 7, 7, 7, 0, 0, -2, 0, 0, 2, 2, .2, 3, 1, 2], //R3 Home
|
|
[18.16, 18.16, 7, 7, 8, 0, 0, -12, 0, 0, 2, 2, .2, 3, 1, 2], //R2
|
|
//Column 3
|
|
[18.16, 18.16, 6, 6, 11+3, 0, 0, 13, -4, 0, 2, 2, .2, 3, 1, 2], //R5 12
|
|
[18.16, 18.16, 7, 7, 8+3, 0, 0, 5, -4, 0, 2, 2, .2, 3, 1, 2], //R4
|
|
[18.16, 18.16, 7, 7, 7+3, 0, 0, -2, -4, 0, 2, 2, .2, 3, 1, 2], //R3 Home
|
|
[18.16, 18.16, 7, 7, 8+3, 0, 0, -10, -4, 0, 2, 2, .2, 3, 1, 2], //R2
|
|
//Column 4
|
|
[18.16, 18.16, 6, 6,11+5.5, 0, 0, 13, -10, 0, 2, 2, .2, 3, 1, 2], //R5 16
|
|
[18.16, 18.16, 7, 7,8+5.5, 0, 0, 5, -10, 0, 2, 2, .2, 3, 1, 2], //R4
|
|
[18.16, 18.16, 7, 7,7+5.5, 0, 0, -5, -10, 0, 2, 2, .2, 3, 1, 2], //R3 Home
|
|
[18.16, 18.16, 7, 7, 8+4, 0, 0, -12, 5, 0, 2, 2, .2, 3, 1, 2], //R2
|
|
//Column 5
|
|
[18.16*1.5, 18.16, 3, 3, 5, 0, 0, -3, -0, -0, 2, 2, .2, 3, 1, 2], //R5 0
|
|
[18.16*1.25, 18.16, 3, 3, 5, 0, 0, -3, -0, -0, 2, 2, 1, 3, 1, 2],
|
|
[18.16, 18.16, 7, 7, 7+4, 0, 0, -2, -6, 0, 2, 2, .2, 3, 1, 2], //R3 Home
|
|
[18.16, 18.16, 7, 7, 8+6, 0, 0, -12, 10, 0, 2, 2, .2, 3, 1, 2], //R2
|
|
];
|
|
|
|
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];
|
|
function StemExponent(keyID) = keyParameters[keyID][15];
|
|
|
|
dishParameters = //dishParameter[keyID][ParameterID]
|
|
[
|
|
//FFwd1 FFwd2 FPit1 FPit2 DshDep DshHDif FArcIn FArcFn FArcEx BFwd1 BFwd2 BPit1 BPit2 BArcIn BArcFn BArcEx
|
|
//Column 0
|
|
[ 9, 3, 5, -42, 5, 1.7, 20, 20, 2, 10, 4, 8, -30, 20, 20, 2], //R5
|
|
[ 6, 4, 5, -50, 4, 1.2, 13, 19, 2, 6, 4, 5, -15, 13, 19, 2], //R4
|
|
[ 6, 3, 8, -20, 5, 1.2, 12, 19, 2, 5, 4, 13, -5*0, 12, 16, 2], //R3
|
|
[ 6, 3, 18, -50, 5, 1.7, 8.8, 15, 2, 6, 4, 13, -30, 8.8, 16, 2], //R2
|
|
//Column 1
|
|
[ 5, 3.5, 5, -48, 4, 1.7, 8.5, 10, 2, 6, 4, 13, -30, 8.5, 16, 2], //R5
|
|
[ 6, 3, 15, -50, 5, 1.7, 8, 15, 2, 6, 4, 10, -30, 8, 16, 2], //R4
|
|
[ 6, 3, 15, -50, 5, 1.7, 8.2, 15, 2, 5, 4, 13, -30, 8.2, 16, 2], //R3
|
|
[ 6, 3, 12, -50, 5, 1.7, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R2
|
|
//Column 2
|
|
[ 5, 3.5, 5, -48, 4, 1.7, 9.3, 10, 2, 6, 4, 13, -30, 9.3, 18, 2], //R5
|
|
[ 6, 3, 18, -50, 5, 1.7, 8, 15, 2, 6, 4, 13, -30, 8, 15, 2], //R4
|
|
[ 6, 3, 18, -50, 5, 1.7, 8, 15, 2, 5, 4, 13, -30, 8, 15, 2], //R3
|
|
[ 6, 3, 18, -50, 5, 1.7, 8, 15, 2, 6, 4, 13, 30, 8, 16, 2], //R2
|
|
//Column 3
|
|
[ 5, 3, 5, -50, 5, 1.5, 8.5, 10, 2, 6, 4, 13, -30, 8.5, 16, 2], //R5
|
|
[ 6, 3, 18, -50, 5, 1.6, 8.5, 15, 2, 6, 4, 10, -30, 8.5, 16, 2], //R4
|
|
[ 6, 3, 15, -50, 5, 1.6, 8.5, 15, 2, 5, 4, 13, -30, 8.5, 16, 2], //R3
|
|
[ 6, 3, 15, -50, 5, 1.6, 8.5, 15, 2, 6, 4, 13, -30, 8.5, 16, 2], //R2
|
|
//Column 4
|
|
[ 5, 3, 5, -50, 5, 1.7, 8.5, 12, 2, 6, 4, 13, -30, 8.5, 16, 2], //R5
|
|
[ 6, 3, 18, -50, 5, 1.7, 8.5, 17, 2, 6, 4, 10, -30, 8.5, 16, 2], //R4
|
|
[ 6, 3, 15, -50, 5, 1.7, 8.5, 15, 2, 5, 4, 13, -30, 8.5, 16, 2], //R3
|
|
[ 6, 3, 18, -50, 5, 1.7, 8.6, 15, 2, 6, 4, 13, -30, 8.6, 16, 2], //R2
|
|
//Column 5
|
|
[ 5, 3, 5, -50, 5, 1.7, 8.5, 10, 2, 6, 4, 13, -30, 8.5, 16, 2], //R5
|
|
[ 6, 3, 18, -50, 5, 1.7, 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, 5, 1.7, 8.8, 15, 2, 6, 4, 13, -30, 8.8, 16, 2], //R2
|
|
];
|
|
|
|
|
|
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 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*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)
|
|
];
|
|
|
|
function StemRadius(t, keyID) = pow(t/stemLayers,3)*ChamfFinRad(keyID) + (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) {
|
|
|
|
//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)), rounded_rectangle_profile(CapTransform(i, keyID),fn=fn,r=CapRadius(i, keyID)))]); //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)), rounded_rectangle_profile(InnerTransform(i, keyID),fn=fn,r=CapRadius(i, keyID)))]);
|
|
}
|
|
}
|
|
if(Stem == true){
|
|
rotate([0,0,stemRot])choc_stem(KeyHeight(keyID), slop); // generate mx cherry stem, not compatible with box
|
|
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)))]); //outer shell
|
|
}
|
|
//cut for fonts and extra pattern for light?
|
|
}
|
|
|
|
//Cuts
|
|
|
|
//Fonts
|
|
if(Legends == true){
|
|
#rotate([-XAngleSkew(keyID),YAngleSkew(keyID),ZAngleSkew(keyID)])
|
|
translate([-1.5,5,KeyHeight(keyID)-2.2])linear_extrude(height = 0.5)
|
|
text( text = "v.2", font = "Constantia:style=Bold", size = 3, valign = "center", halign = "right" );
|
|
// #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 = 1);
|
|
}
|
|
|
|
//------------------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() {
|
|
|
|
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 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;
|