mold top
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63a06192a9
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e8dde99876
@ -36,7 +36,6 @@
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"parts": "all",
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"piston_depth": "5",
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"printable": "false",
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"render_drill_template": "false",
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"resin_escape_diameter": "4",
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"scale_factor": "1",
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"show_curve_points": "false",
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@ -84,7 +83,6 @@
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"pin_dia": "3",
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"piston_depth": "5",
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"printable": "true",
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"render_drill_template": "false",
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"resin_escape_diameter": "4",
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"scale_factor": "1",
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"screw_dia": "4.5",
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@ -137,7 +135,6 @@
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"pin_dia": "3",
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"piston_depth": "5",
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"printable": "true",
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"render_drill_template": "false",
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"resin_escape_diameter": "4",
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"scale_factor": "1",
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"screw_dia": "4.5",
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@ -154,7 +154,6 @@ draw_profile = false;
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build_fin = false;
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build_box = false;
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build_mold = true;
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render_drill_template = false;
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parts = "all"; // [all, top, bottom]
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@ -286,7 +285,6 @@ if ( build_box ) {
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* Render Mold
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*/
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if ( build_mold ) buildMold();
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if ( render_drill_template ) buildDrillTemplate();
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module buildCompletFin() {
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@ -321,25 +319,6 @@ module baseMask() {
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}
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/**
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* Remove bottom part of the fin mold to let the box mold do the job
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*
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*/
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module moldBottomMask(moldThickness = 3,height,angle) {
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// Remove bottom part
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//color("Red") cube([fin_width,base_extra_thickness,80],anchor=BACK);
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deviation = opp_ang_to_adj (height,angle);
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//back(moldThickness)
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back(-1)
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down(OFFSET)
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//up(2)
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color ("Blue") prismoid(
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size1=[fin_width/2*1.2, moldThickness*2],
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size2=[fin_width/2*1.2, moldThickness*2+ 2*deviation],
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h=height+OFFSET*2
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);
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}
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module usBoxMask() {
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left(80) color("Blue") usBox(fin_base+30,thickness = box_thickness+2*OFFSET,drill=false);
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@ -347,11 +326,20 @@ module usBoxMask() {
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/*
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module bottomSupport() {
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moldHeight = 10;
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moldContour = expandPath(profile,mold_extra_width);
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down(moldHeight) linear_extrude (moldHeight) polygon(moldContour); // bottom support
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down(moldHeight)
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linear_extrude (moldHeight) polygon(moldContour); // bottom support
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}
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*/
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module support( part ) {
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moldHeight = 10;
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moldContour = expandPath(profile,mold_extra_width);
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down( (part == "bottom" ? 1 : 0) * moldHeight)
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linear_extrude (moldHeight) polygon(moldContour); // bottom support
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}
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/**
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@ -363,14 +351,8 @@ module buildMold() {
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if (mold_part != "top") {
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// Fin mold
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difference() {
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//union() {
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difference(){
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bottomSupport();
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usBoxMask();
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}
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//moldBottomSkirt();
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//};
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// Remove Fin
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support(part="bottom");
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usBoxMask();
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buildCompletFin();
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}
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// Box mold
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@ -380,8 +362,27 @@ module buildMold() {
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buildCompletFin();
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}
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// Mold skirt
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moldBottomSkirt();
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moldSkirt( part="bottom" );
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}
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// Top
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if (mold_part != "bottom") up(80) {
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difference(){
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support(part="top");
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usBoxMask();
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buildCompletFin();
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}
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// Box mold
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difference() {
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left(80) finBoxMold( fin_base+30,part="top",skirt=false );
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// Remove fin
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//buildCompletFin();
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}
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// Mold skirt
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down( fin_thickness * 3 ) moldSkirt( part="top" );
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}
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//up(50) buildCompletFin();
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@ -410,12 +411,33 @@ module buildMold() {
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*/
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}
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module moldBottomSkirt(){
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box_profile = move([-80,0],profileUS (fin_base+30));
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finAndBoxProfile = path_merge_collinear(union([box_profile,profile]));
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skirt( finAndBoxProfile, moldThickness = 3 , angle = skirt_angle, moldDeep = fin_thickness );
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/**
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* Build the piston skirt
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*
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* @param part - Part could be 'top' or 'bottom'
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*/
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module moldSkirt( part ){
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assert( part , "'part' parameter should be defined in mold skirt");
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box_profile = move([-80,0],profileUS (fin_base+30));
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finAndBoxProfile = path_merge_collinear(union([box_profile,profile]));
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//if (part == "bottom") {
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skirt( finAndBoxProfile, side = part ,moldThickness = 3 , angle = skirt_angle, moldDeep = fin_thickness );
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//} else if (part == "top") {
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//}
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}
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//moldSkirt(part="top");
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module moldJunctionMask(moldThickness = 3,height,angle){
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deviation = opp_ang_to_adj (height,angle);
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@ -435,7 +457,7 @@ module moldJunctionMask(moldThickness = 3,height,angle){
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module buildMoldSkirt( height,offset,thickness ) {
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outside = expandPath(profile,offset);
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inside = expandPath(profile,offset-thickness);
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inside = expandPath(profile,offset-thickness);
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down(height) {
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// Skirt
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linear_extrude (height-thick/2) difference() {
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@ -456,81 +478,6 @@ module buildMoldSkirt( height,offset,thickness ) {
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}
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}
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/**
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* Mold Case
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*
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* @param height - Height of the case
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* @param bottom - Is bottom or top
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*/
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module case( height , bottom=true ) {
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difference() {
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diff() cuboid( [ mold_length, mold_width, height ],
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rounding=4,
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edges=[bottom ? BOTTOM: TOP],
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anchor=TOP ){
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// Drills
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align(BOTTOM,[FRONT+LEFT,FRONT+RIGHT,BACK+LEFT,BACK+RIGHT],inset=10,overlap=-OFFSET)
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color("orange")
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tag("remove")
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drilling();
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};
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// Material holes
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mirror([bottom ? 0:1,0,0])
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back(38) left(55)
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color("Red")
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up(OFFSET)
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rounded_triangle(radius=3, height=height+2*OFFSET);
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// Length hole
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fwd(32) cuboid([120,10,50],rounding=5);
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// Side holes
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left(67) cuboid([10,40,50],rounding=5);
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right(67) cuboid([10,40,50],rounding=5);
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}
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}
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/**
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* Drill template
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*
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*/
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module buildDrillTemplate() {
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spacing = 38.5;
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drill_depth = 15;
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drill_diameter = 6;
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template_height = 5;
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p1 = 20;
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p2 = p1-spacing;
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mirror([0,0,printable ? 1 : 0]) difference() {
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left(1) color ("Orange") cuboid([fin_width+7,15,10],rounding=3);
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down(OFFSET) {
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hull(){
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left(28) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
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left(55) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
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}
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hull(){
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left(12) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
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left(-10) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
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}
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hull(){
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left(-27) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
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left(-53) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
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}
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}
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xrot(-90) buildFin(fin_thickness + 2*CLEARING );
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//left(60) cylinder(h=20,r=6/2);
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up(template_height+OFFSET)
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{
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left(p1)
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cylinder(h=drill_depth+template_height,r=drill_diameter/2,orient=DOWN);
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left(p2)
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cylinder(h=drill_depth,r=drill_diameter/2,orient=DOWN);
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}
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}
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}
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// *****************
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// * Bottom insert *
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@ -589,108 +536,9 @@ module resin_escape(length) {
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color ("Blue") cylinder(h=length, r=resin_escape_diameter/2);
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}
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// *****************
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// * Drilling *
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// *****************
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module drilling(){
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/*fwd(20)*/ color("Red") /*up(mold_piston_height+5)*/ up(-OFFSET)
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orient(DOWN)
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threaded_rod(
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d=merge_holes_diameter,
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l=drilling_length,
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pitch=1.5,
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anchor=BOTTOM,
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//orient=BOTTOM
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);
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}
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function addBase(path) = concat(path,[[fin_base,-base_extra_thickness],[0,-base_extra_thickness]]);
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// Function to create a parallel bezier curve offset by a given amount
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function offset_bezier_points(points, offset_distance, normal=[0,0,1]) =
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[for (pt = points) pt + offset_distance * normal];
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// Function to create multiple parallel bezier curves
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function create_patch_points(base_points, width, steps=4) =
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[for (i = [0:1:steps])
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let(
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t = i/steps,
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offset = width * t
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)
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offset_bezier_points(base_points, offset)
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];
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// Create the bezier patch VNF
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function make_bezier_patch_from_curve(base_points, width, length_steps=32, width_steps=8) =
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let(
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// Generate parallel curves to form patch
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patch_points = create_patch_points(base_points, width, width_steps),
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// Generate points for each curve
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curves_points = [for (curve_pts = patch_points)
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bezier_points(curve_pts, length_steps)
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],
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// Create vertices for VNF
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vertices = flatten(curves_points),
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// Calculate indices for faces
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indices = [
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for (i=[0:1:width_steps-1], j=[0:1:length_steps-1])
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let(
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idx00 = i*(length_steps+1) + j,
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idx10 = (i+1)*(length_steps+1) + j,
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idx11 = (i+1)*(length_steps+1) + (j+1),
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idx01 = i*(length_steps+1) + (j+1)
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)
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each [[idx00, idx10, idx11, idx01]]
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]
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)
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[vertices, indices];
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if (false) {
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//vnf = bezier_vnf(profile_curve_with_base, splinesteps=10);
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/*
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vnf = make_bezier_patch_from_curve(points, width=10);
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back (100) {
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cube([20,20,20]);
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vnf_polyhedron(vnf);
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}
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*/
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/*
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polygon(profile_curve_with_base);
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vnf2 =vnf_from_region(polygon(profile_curve_with_base));
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//vnf2 = vnf_from_polygons(profile_curve_with_base, fast=true);
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vnf_polyhedron(vnf2);
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*/
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//curve_points = bezier_curve(points,N=3, splinesteps=32);
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curve_points = bezpath_curve(points,N=3, splinesteps=32);
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curve_points2 = [ for(p = curve_points) [p.x, p.y, 0]]; // Offset by 1 in Z
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//echo ("curve_points",curve_points);
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curve_points_offset = [ for(p = curve_points) [p.x, p.y, (p.z != undef ? p.z : 0) + 1 ]]; // Offset by 1 in Z
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// Combine original and offset points to form a 2D array for a simple patch
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patch_points = [
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curve_points,
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curve_points_offset
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];
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//echo ("patch_points",patch_points);
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//echo ("curve_points_offset",curve_points_offset);
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echo ("curve_points2",curve_points2);
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echo ("length curve_points2",len(curve_points2));
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//vnf_5 = bezier_vnf(patch_points, caps=false, splinesteps=10);
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//vnf_5 = bezier_vnf(curve_points2, splinesteps=10);
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echo ("is_bezier_patch",is_bezier_patch(curve_points));
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echo ("is_bezier_patch",is_bezier_patch(curve_points2));
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//vnf_5 = bezier_vnf(curve_points_offset, splinesteps=10);
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}
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/**
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* Draws a profile based on Bezier path points with optional debug visualization.
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44
common.scad
44
common.scad
@ -1,5 +1,6 @@
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include <BOSL2/std.scad>;
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// Constants
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@ -166,18 +167,53 @@ function layerHeights(n, fin_thickness) =
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* @param side - Bottom or top part of the mold
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*
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*/
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module skirt( profile, moldThickness, angle, moldDeep, side = "bottom", heightFactor = 3 ) {
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module skirt( profile, moldThickness = 4 , angle = 45 , moldDeep, side = "bottom", heightFactor = 3, clearance = 0.2 ) {
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height = heightFactor * moldDeep;
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echo ("height",height);
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deviation = opp_ang_to_adj (height,angle);
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skirtHeight = heightFactor * moldDeep;
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// deviation = 3;
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if ( side == "bottom" ) {
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lowInt = profile;
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lowExt = expandPath( lowInt , moldThickness );
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highInt = expandPath( lowInt , deviation );
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highExt = expandPath( lowInt , deviation + moldThickness );
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difference(){
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skin([lowExt , highExt ], z=[0 , skirtHeight] , slices=0);
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skin([lowInt , highInt ], z=[-OFFSET , skirtHeight+OFFSET] , slices=0);
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skin([lowExt , highExt ], z=[0 , height ] , slices=0);
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skin([lowInt , highInt ], z=[-OFFSET , height+OFFSET ] , slices=0);
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}
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} else if ( side == "top" ) {
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lowInt = expandPath( profile , -moldThickness );
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lowExt = expandPath( profile , -clearance );
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highInt = expandPath( profile , +deviation-moldThickness );
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highExt = expandPath( profile , +deviation -clearance );
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difference(){
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skin([lowExt , highExt ], z=[0 , height ] , slices=0);
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skin([lowInt , highInt ], z=[-OFFSET , height+OFFSET ] , slices=0);
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}
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}
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}
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if ( false ) {
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skirt(
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rect([30,30]),
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moldDeep=5,
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moldThickness = 3,
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side="bottom"
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);
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up(1)
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skirt(
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rect([30,30]),
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moldDeep=5,
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moldThickness = 3,
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side="top",
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clearance=1
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);
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}
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@ -83,13 +83,20 @@ module usBoxMold( length, height=23, thickness = 9, moldThickness = 4,tabLength
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difference() {
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// Mold
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{
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if ( part == "bottom")
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//if ( part == "bottom")
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down (moldHeight/2) linear_extrude(moldHeight)
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offset(r=moldThickness)
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boxProfileUS( length, height );
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if ( part == "top" ) {
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/*
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if ( part == "top")
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down (moldHeight/2) linear_extrude(moldHeight)
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offset(r=moldThickness)
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boxProfileUS( length, height );
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*/
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if ( part == "top__" ) {
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//baseInt = profileUS (length);
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//baseInt = profileUS (length);
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//topInt = offset(baseInt,delta=-deviation,chamfer=false,same_length=true);
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@ -139,6 +146,11 @@ module usBoxMold( length, height=23, thickness = 9, moldThickness = 4,tabLength
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}
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//usBoxMold (130,part="bottom",skirt=false);
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//back (30) usBoxMold (130,part="top",skirt=false);
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module finBoxMold( length, finLength=-1, skirtAngle = 80, part="bottom", skirt = true) {
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assert (finLength,"Missing 'finLength' parameter in finBoxMold module");
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