136 lines
4.6 KiB
OpenSCAD
136 lines
4.6 KiB
OpenSCAD
// OpenSCAD file automatically generated by svg2scad2cc.py
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// parameters tunable by user
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wallHeight = 10;
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minWallThickness = 1.6;
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maxWallThickness = 1.6;
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minInsideWallThickness = 1.6;
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maxInsideWallThickness = 1.6;
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wallFlareWidth = 8;
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wallFlareThickness = 2;
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insideWallFlareWidth = 5;
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insideWallFlareThickness = 1.6;
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featureHeight = 1;
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minFeatureThickness = 1;
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maxFeatureThickness = 3;
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connectorThickness = 1.6;
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cuttingTaperHeight = 3;
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cuttingEdgeThickness = 0.8;
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// set to non-zero value to generate a demoulding plate
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demouldingPlateHeight = 2;
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demouldingPlateSlack = 0.5;
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// sizing function
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function clamp(t,minimum,maximum) = min(maximum,max(t,minimum));
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function featureThickness(t) = clamp(t,minFeatureThickness,maxFeatureThickness);
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function wallThickness(t) = clamp(t,minWallThickness,maxWallThickness);
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function insideWallThickness(t) = clamp(t,minInsideWallThickness,maxInsideWallThickness);
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size = 100.198;
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scale = size/100.198;
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// helper modules: subshapes
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module ribbon(points, thickness=1) {
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union() {
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for (i=[1:len(points)-1]) {
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hull() {
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translate(points[i-1]) circle(d=thickness, $fn=8);
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translate(points[i]) circle(d=thickness, $fn=8);
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}
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}
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}
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}
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module wall(points,height,thickness) {
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module profile() {
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if (height>=cuttingTaperHeight && cuttingTaperHeight>0 && cuttingEdgeThickness<thickness) {
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cylinder(h=height-cuttingTaperHeight+0.001,d=thickness,$fn=8);
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translate([0,0,height-cuttingTaperHeight]) cylinder(h=cuttingTaperHeight,d1=thickness,d2=cuttingEdgeThickness);
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} else {
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cylinder(h=height,d=thickness,$fn=8);
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}
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}
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for (i=[1:len(points)-1]) {
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hull() {
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translate(points[i-1]) profile();
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translate(points[i]) profile();
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}
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}
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}
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module outerFlare(path) {
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difference() {
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render(convexity=10) linear_extrude(height=wallFlareThickness) ribbon(path,thickness=wallFlareWidth);
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translate([0,0,-0.01]) linear_extrude(height=wallFlareThickness+0.02) polygon(points=path);
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}
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}
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module innerFlare(path) {
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intersection() {
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render(convexity=10) linear_extrude(height=insideWallFlareThickness) ribbon(path,thickness=insideWallFlareWidth);
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translate([0,0,-0.01]) linear_extrude(height=insideWallFlareThickness+0.02) polygon(points=path);
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}
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}
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module fill(path,height) {
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render(convexity=10) linear_extrude(height=height) polygon(points=path);
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}
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// data from svg file
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outerWall_0 = scale * [[-0.397,100.396],[-0.397,0.397],[-100.396,0.397],[-100.396,78.534],[-81.412,78.534],[-81.412,100.396],[-0.397,100.396]];
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feature_1 = scale * [[-74.069,67.833],[-88.752,67.833],[-88.752,17.555],[-74.069,17.555],[-74.069,67.833]];
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feature_2 = scale * [[-12.522,85.476],[-31.750,85.476],[-31.750,15.995],[-12.522,15.995],[-12.522,85.476]];
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innerWall_3 = scale * [[-41.656,80.465],[-41.656,19.228],[-64.933,49.709],[-41.656,80.465]];
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connector_4 = scale * [[-45.418,100.595],[-59.237,100.595],[-59.237,0.482],[-45.418,0.482],[-45.418,100.595]];
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// Main modules
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module cookieCutter() {
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wall(outerWall_0,wallHeight,wallThickness(0.794));
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outerFlare(outerWall_0);
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if (demouldingPlateHeight <= 0) {
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wall(feature_1,featureHeight,featureThickness(0.794));
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}
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if (demouldingPlateHeight <= 0) {
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wall(feature_2,featureHeight,featureThickness(0.794));
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}
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wall(innerWall_3,wallHeight,insideWallThickness(0.794));
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innerFlare(innerWall_3);
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fill(connector_4,connectorThickness);
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}
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module demouldingPlate(){
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// A plate to help push on the cookie to turn it out.
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// If features exists, they forms stamp with plate.
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render(convexity=10) difference() {
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linear_extrude(height=demouldingPlateHeight) union() {
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polygon(points=outerWall_0);
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}
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translate([0,0,-0.01]) linear_extrude(height=demouldingPlateHeight+0.02) union() {
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ribbon(outerWall_0,thickness=demouldingPlateSlack+wallThickness(0.794));
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ribbon(innerWall_3,thickness=demouldingPlateSlack+insideWallThickness(0.794));
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}
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}
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if (demouldingPlateHeight>0) {
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translate([0,0,demouldingPlateHeight]) {
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// features transferred onto the demoulding plate
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wall(feature_1,featureHeight,featureThickness(0.794));
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wall(feature_2,featureHeight,featureThickness(0.794));
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}
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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// final call, use main modules
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translate([100.396*scale + wallFlareWidth/2, -0.397*scale + wallFlareWidth/2,0])
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cookieCutter();
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// translate([-40,15,0]) cylinder(h=wallHeight+10,d=5,$fn=20); // handle
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if (demouldingPlateHeight>0)
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translate([100.396*scale + wallFlareWidth/2 + 100.000*scale + wallFlareWidth + demouldingPlateSlack, -0.397*scale + wallFlareWidth/2,0])
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demouldingPlate(); |