Kitesurf-Fins.json

@@ -36,6 +36,7 @@
             "base_extra_thickness": "20",
             "base_tickness": "8",
             "build_fin": "true",
+            "build_mold": "true",
             "draw_profile": "false",
             "fin_back_angle": "20",
             "fin_back_height": "30",
@@ -67,131 +68,6 @@
             "resin_escape_diameter": "4",
             "scale_factor": "1",
             "show_debug_layers": "false"
-        },
-        "New set 3": {
-            "$fn": "64",
-            "OFFSET": "0.01",
-            "base_extra_thickness": "20",
-            "base_tickness": "8",
-            "build_fin": "false",
-            "draw_profile": "false",
-            "fin_back_angle": "20",
-            "fin_back_height": "30",
-            "fin_back_strength": "30",
-            "fin_back_widthdraw": "20",
-            "fin_back_withraw": "20",
-            "fin_base": "114",
-            "fin_counter_angle": "30",
-            "fin_counter_strength": "10",
-            "fin_edge_angle": "30",
-            "fin_edge_strength": "30",
-            "fin_end_angle": "110",
-            "fin_end_strength": "30",
-            "fin_height": "51",
-            "fin_start_angle": "60",
-            "fin_sweep": "25",
-            "fin_thickness": "8",
-            "fin_top_withdraw": "10",
-            "fin_width": "120",
-            "fin_width_tip": "5",
-            "merge_holes_diameter": "6",
-            "mold_base_height": "10",
-            "mold_extra_width": "15",
-            "mold_part": "top",
-            "mold_piston_height": "10",
-            "mold_top_height": "5",
-            "parts": "all",
-            "piston_depth": "5",
-            "printable": "true",
-            "render_fin": "true",
-            "render_mold": "false",
-            "resin_escape_diameter": "4",
-            "scale_factor": "1",
-            "show_debug_layers": "false"
-        },
-        "New set 4": {
-            "$fn": "64",
-            "OFFSET": "0.01",
-            "base_extra_thickness": "20",
-            "base_tickness": "8",
-            "build_fin": "false",
-            "draw_profile": "false",
-            "fin_back_angle": "20",
-            "fin_back_height": "30",
-            "fin_back_strength": "30",
-            "fin_back_widthdraw": "20",
-            "fin_back_withraw": "20",
-            "fin_base": "114",
-            "fin_counter_angle": "30",
-            "fin_counter_strength": "10",
-            "fin_edge_angle": "30",
-            "fin_edge_strength": "30",
-            "fin_end_angle": "110",
-            "fin_end_strength": "30",
-            "fin_height": "51",
-            "fin_start_angle": "60",
-            "fin_sweep": "25",
-            "fin_thickness": "8",
-            "fin_top_withdraw": "10",
-            "fin_width": "120",
-            "fin_width_tip": "5",
-            "merge_holes_diameter": "6",
-            "mold_base_height": "10",
-            "mold_extra_width": "15",
-            "mold_part": "all",
-            "mold_piston_height": "10",
-            "mold_top_height": "5",
-            "parts": "all",
-            "piston_depth": "5",
-            "printable": "true",
-            "render_fin": "false",
-            "render_mold": "false",
-            "resin_escape_diameter": "4",
-            "scale_factor": "1",
-            "show_debug_layers": "false"
-        },
-        "New set 5": {
-            "$fn": "64",
-            "CLEARING": "0.10000000000000001",
-            "OFFSET": "0.01",
-            "base_extra_thickness": "20",
-            "base_tickness": "8",
-            "build_fin": "false",
-            "draw_profile": "false",
-            "fin_back_angle": "20",
-            "fin_back_height": "30",
-            "fin_back_strength": "30",
-            "fin_back_widthdraw": "20",
-            "fin_back_withraw": "20",
-            "fin_base": "114",
-            "fin_counter_angle": "30",
-            "fin_counter_strength": "10",
-            "fin_edge_angle": "30",
-            "fin_edge_strength": "30",
-            "fin_end_angle": "110",
-            "fin_end_strength": "30",
-            "fin_height": "51",
-            "fin_start_angle": "60",
-            "fin_sweep": "25",
-            "fin_thickness": "8",
-            "fin_top_withdraw": "10",
-            "fin_width": "120",
-            "fin_width_tip": "5",
-            "merge_holes_diameter": "6",
-            "mold_base_height": "10",
-            "mold_extra_width": "15",
-            "mold_part": "all",
-            "mold_piston_height": "10",
-            "mold_top_height": "5",
-            "parts": "all",
-            "piston_depth": "5",
-            "printable": "true",
-            "render_drill_template": "true",
-            "render_fin": "false",
-            "render_mold": "false",
-            "resin_escape_diameter": "4",
-            "scale_factor": "1",
-            "show_debug_layers": "false"
         }
     }
 }

Kitesurf-Fins.scad

@@ -10,17 +10,6 @@ include <DotScad/src/bend_extrude.scad>;
 include <DotScad/src/ellipse_extrude.scad>;
 include <DotScad/src/loft.scad>;
 
-
-/**
- * Kitesurf Fins mold
- *
- *
- *
- * Requirements : 
- * - The plunger normaly should be twice the height of the part 
- *
- */
-
 /************************************************/
 /*  Parameters                                  */
 /************************************************/
@@ -73,6 +62,9 @@ draw_profile = false;
 // Draw Fin
 build_fin = false;
 
+// Build mold
+build_mold = true;
+
 /* [Mold] */
 
 // Mold base height
@@ -91,13 +83,8 @@ piston_depth = 5;
 /* [Rendering] */
 
 // Rendering parts
-render_fin      = false;
-render_mold     = true;
-render_drill_template     = true;
-
 parts           = "all";      // [all, top, bottom]
 
-
 mold_part       = "all";   // [all, top, bottom]
 // Scaling
 scale_factor    = 1.0; // [0.1:0.1:2] 
@@ -105,6 +92,9 @@ scale_factor    = 1.0; // [0.1:0.1:2]
 // Printable rendering
 printable       = true;
 
+// Rendering mold
+//render_mold = true;
+
 
 $fn=64;
 
@@ -112,9 +102,9 @@ $fn=64;
 /* Constants */
 /*************/
 
+
 // Define the offset value as a constant
 OFFSET = 0.01;
-CLEARING = 0.1;
 
 /************************************************/
 /* Derived variable */
@@ -129,12 +119,14 @@ drilling_length = mold_base_height+mold_piston_height+2*OFFSET;
 pt1_x = adj_ang_to_opp(fin_height,fin_sweep)+fin_base/2;
 pt1_y = fin_height;
 
+//back_point = [fin_width-7,fin_height/2];
 tail_point = [fin_width-3,fin_height/5];
 
 edge_point = [fin_width-fin_top_withdraw,fin_height-2];
 counter_edge_point = [fin_width-6,fin_height-8];
 
 
+
 /******************/
 /* Profile points */
 /******************/
@@ -178,21 +170,57 @@ counter_edge_point = [fin_width-6,fin_height-8];
 profile_path  = translate_path( asCurve(profile_points),-fin_width/2 );
                   
                   
+                  
+function asCurve(points) = bezier_curve(points/*,N=3*/,splinesteps=128);
+function handle(point,angle,strength) = [
+    //point[0] + adj_ang_to_opp(strength,angle)   /** xAngleFactor(angle)*/,
+    //point[1] + /*(angle>0 ? strength :-strength)*/ strength  * yAngleFactor(angle),
+    point[0] + polar_to_xy(strength,angle)[0]   ,
+    point[1] + polar_to_xy(strength,angle)[1]   
+    ]; 
+
+function xAngleFactor(angle) = angle > 0 && angle < 180 ? 1 : -1;
+function yAngleFactor(angle) = angle > -90 && angle < 90 ? 1 : -1;
+
+//function counterTop(x,withdraw,height)                 = [x-withdraw, height ];
+function handleStart(x,withdraw,angle,strength) = [x+adj_ang_to_opp(strength,angle), x-withdraw +strength];
+function handleEnd(x,withdraw,angle,strength)   = [x-adj_ang_to_opp(strength,angle), x-withdraw -strength];
+function endHandle(angle)= 
+    angle < 90 ? 
+        [fin_base + adj_ang_to_opp(fin_end_strength,90-angle),fin_end_strength] 
+        : 
+        [fin_base - adj_ang_to_opp(fin_end_strength,angle-90),fin_end_strength] 
+        ;
+
+//function backPoint() = [fin_base-(fin_back_widthdraw/100*fin_base),fin_back_height/100*fin_height];
+
+function decrease_y(points, percentage) = [ for (p = points) [p[0], p[1] * (1 - percentage/100)]];
+
+function pathProfile(points) = bezpath_curve(points,N=3);
+
+// Surf Fin profile
+fin_profile         = pathProfile( profile_points );
+
+function expandPath(path,delta) = 
+        offset(
+            deduplicate(path),
+            delta=delta,
+            chamfer=false,
+            same_length=true
+       )
+    ;
+    
+    
 // *****************
 // *  Fin Drawing  *
 // *****************
-if ( render_fin ) {
-    scale([scale_factor, scale_factor, scale_factor]) 
-        buildFin( fin_thickness );
+if (build_fin) {
+    scale([scale_factor, scale_factor, scale_factor]) buildFin();
 }
 
-/**
- * Render Mold
- */
-if ( render_mold )              buildMold();    
-if ( render_drill_template )    buildDrillTemplate();
-
-
+if (build_mold) {
+   buildMold();    
+}
 
 /**
  * Build mold
@@ -200,27 +228,29 @@ if ( render_drill_template )    buildDrillTemplate();
  */
 module buildMold() {
     // Bottom mold
-    if (mold_part !=  "top") 
-    
     difference() { 
         case(mold_base_height,true);
         // Piston
         down(piston_depth-OFFSET) fwd(20) bottomInsert(); 
     }
     // Top Mold
-    if (mold_part !=  "bottom") 
     up(printable ? 0 : 60) fwd(printable ? fin_height+50 : 0) down(mold_base_height) mirror([0,0,printable ? 1 : 0 ])  {
+    
+    
         difference() {
             union() {
                 // case
                 case(mold_top_height,false); 
+
                 // Piston
                 mirror([1,0,0])        
                 down(mold_top_height+piston_depth-OFFSET) fwd(20) topPiston(); 
             };
             resin_escape(40);
-            }
-        }      
+        
+        };
+       
+    };         
 }
 
 /**
@@ -229,7 +259,35 @@ module buildMold() {
  * @param height - Height of the case
  * @param bottom - Is bottom or top 
  */
-module case( height , bottom=true ) {
+module case_old(height,bottom=true) {
+    diff() cuboid( [ mold_length, mold_width, height ],
+        rounding=4,
+        edges=[bottom ? BOTTOM: TOP],
+        anchor=TOP ){
+        // Drills
+        align(BOTTOM,[FRONT+LEFT,FRONT+RIGHT,BACK+LEFT,BACK+RIGHT],inset=10,overlap=-OFFSET)
+            color("orange") 
+                tag("remove") 
+                    drilling();
+        // Material holes   
+/*        
+        align(TOP,[CENTER+BACK+LEFT],inside=true,inset=15,overlap=-OFFSET) 
+                color("Red") wedge([mold_height+2*OFFSET, 50, 30], center=true,orient=FRONT,spin=-90        );                        
+  */              
+        // Material holes
+        align(TOP,[CENTER+BACK+LEFT]/*,inside=true*/,inset=15,overlap=-OFFSET) 
+            color("Red")
+                up(OFFSET)
+                    tag("remove") 
+                        rounded_triangle(radius=3, height=height+2*OFFSET);                    
+    }             
+}
+
+
+
+
+
+module case(height,bottom=true) {
     difference() {
         diff() cuboid( [ mold_length, mold_width, height ],
             rounding=4,
@@ -240,71 +298,41 @@ module case( height , bottom=true ) {
                 color("orange") 
                     tag("remove") 
                         drilling();
+            // Material holes   
+    /*        
+            align(TOP,[CENTER+BACK+LEFT],inside=true,inset=15,overlap=-OFFSET) 
+                    color("Red") wedge([mold_height+2*OFFSET, 50, 30], center=true,orient=FRONT,spin=-90        );                        
+      */              
+            
+                          
         };
         // Material holes
         mirror([bottom ? 0:1,0,0])
         back(38) left(55)
                 color("Red")
                     up(OFFSET)
+                        //tag("remove") 
                             rounded_triangle(radius=3, height=height+2*OFFSET);              
         // Length hole                    
         fwd(32) cuboid([120,10,50],rounding=5);
         // Side holes
         left(67) cuboid([10,40,50],rounding=5);
         right(67) cuboid([10,40,50],rounding=5);
+        
    }
 }
 
-/**
- * Drill template
- * 
- */ 
-module buildDrillTemplate() {
-    
-    spacing         = 38.5;
-    drill_depth     = 15;
-    drill_diameter  = 6;
-    template_height  = 5;
-    
-    p1 = 20;
-    p2 = p1-spacing;
-    
-    mirror([0,0,printable ? 1 : 0]) difference() {
-    
-        left(1) color ("Orange") cuboid([fin_width+7,15,10],rounding=3);
-        down(OFFSET) {
-            hull(){
-                left(28) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
-                left(55) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
-            }
-            hull(){
-                left(12) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
-                left(-10) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
-            }
-            hull(){
-                left(-27) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
-                left(-53) cylinder(h=template_height+2*OFFSET,r=drill_diameter/2);
-            }
-        }
-        xrot(-90) buildFin(fin_thickness + 2*CLEARING );
-        //left(60) cylinder(h=20,r=6/2);
-        up(template_height+OFFSET)
-        {
-            left(p1) 
-                cylinder(h=drill_depth+template_height,r=drill_diameter/2,orient=DOWN);
-            left(p2) 
-                cylinder(h=drill_depth,r=drill_diameter/2,orient=DOWN);
-        }
-    }
-}
-
-
-
-
 module rounded_triangle(radius, height) {
     triangle_points = [[0, 0], [75, 0], [0, -35]]; // Equilateral triangle with side length 100
+    // Round the corners of the triangle
     rounded_shape = round_corners( triangle_points, r=radius );
+    // Extrude the 2D rounded triangle
+    //mirror([0,0,1]) linear_extrude(height = height) polygon(rounded_shape);
     mirror([0,0,1]) linear_extrude(height = height) polygon(rounded_shape);
+
+    //mirror([0,0,1]) linear_extrude(height = height) polygon(round_corners(right_triangle([40,30]),r=radius));    
+    //mirror([0,0,1]) linear_extrude(height = height) polygon(right_triangle([40,30]));
+    //mirror([0,0,1]) cyl(l=80, r=10); // Work with cylinder
 }
 
 
@@ -336,26 +364,17 @@ module topPiston() {
     }
 }
 
-/**
- * Build fin
- *
- */ 
-module buildFin( thickness ) {
-    union() {
-        if (parts != "bottom") buildFinSide( thickness );
-        if (parts != "top")    buildFinSide( thickness , true );
-    }
-}
 
 /**
  * Build fin side
  * 
  * @param flip - Define it it is top or bottom fin side
  */
-module buildFinSide(thickness,flip=false) {
+module buildFinSide(flip=false) {
+    debug=false;
     mirror([0,0,flip ? 1 : 0])
         color(flip ? "Gray" : "LightGray") /*up(fin_thickness/4)*/ /*down(fin_thickness) */
-        ellipse_extrude( thickness / 2 ) 
+        ellipse_extrude( fin_thickness/2*(debug?1.2:1)) 
             polygon(profile_path);
 } 
 
@@ -367,8 +386,11 @@ module resin_escape(length) {
 // *  Drilling     *
 // *****************
 module drilling(){
-    /*fwd(20)*/ color("Red") /*up(mold_piston_height+5)*/ up(-OFFSET)
-    orient(DOWN)
+
+//length = mold_base_height+mold_piston_height+10;
+
+/*fwd(20)*/ color("Red") /*up(mold_piston_height+5)*/ up(-OFFSET)
+orient(DOWN)
     threaded_rod(
         d=merge_holes_diameter, 
         l=drilling_length, 
@@ -380,13 +402,56 @@ module drilling(){
 }
 
 
+
+
+//drilling();
+
+module buildFin() {
+    if (false)
+    union(){
+        difference(){
+            union() {
+                if (parts !=  "bottom") 
+                    //buildFinSide([layer_0,layer_1,layer_2],fin_thickness/2);
+                    buildFinSide();
+                if (parts !=  "top")
+                    buildFinSide(true);
+                    //zflip() 
+                    //    buildFinSide([layer_0,layer_1,layer_2],fin_thickness/2);    
+            }
+            color("Red") cube([fin_base+20,base_extra_thickness+20,base_tickness+20],anchor=LEFT+BACK);
+        }
+    }
+}
+
+
 module subtracted(anchor) {
     color("Red") fwd(40) left(40) cube([fin_width+100,fin_height+100,20],anchor=anchor);
 }
 
 
-// Draw fin profile
-if (draw_profile) drawProfile( profile_points, true  );
+
+
+
+if (show_debug_layers) {
+    left(130) {
+        showDebugPath(layer_0);
+        showDebugPath(layer_1);
+        showDebugPath(layer_2);
+        
+        assert(is_path(layer_3),"Layer 3 is not a path");
+        showDebugPath(layer_3);
+        //showDebugPath(layer_4);        
+    }
+    left(230) 
+        showDebugPath(vertical_profile);
+    //showDebugPath(layer_3);
+    
+}
+if (draw_profile) {
+    // Draw fin profile
+    drawProfile( profile_points, true  );
+}
 
 
 /**
@@ -458,48 +523,11 @@ module print_path_points(path) {
 echo ("**********************");
 echo ("*  Configuration     *");
 echo ("**********************");
+//echo ("Layers count"        ,len(layers));
 echo ("Base thickness"      ,str(base_tickness," mm"));
   
 
 
-function asCurve(points) = bezier_curve(points/*,N=3*/,splinesteps=128);
-function handle(point,angle,strength) = [
-    //point[0] + adj_ang_to_opp(strength,angle)   /** xAngleFactor(angle)*/,
-    //point[1] + /*(angle>0 ? strength :-strength)*/ strength  * yAngleFactor(angle),
-    point[0] + polar_to_xy(strength,angle)[0]   ,
-    point[1] + polar_to_xy(strength,angle)[1]   
-    ]; 
-
-function xAngleFactor(angle) = angle > 0 && angle < 180 ? 1 : -1;
-function yAngleFactor(angle) = angle > -90 && angle < 90 ? 1 : -1;
-
-//function counterTop(x,withdraw,height)                 = [x-withdraw, height ];
-function handleStart(x,withdraw,angle,strength) = [x+adj_ang_to_opp(strength,angle), x-withdraw +strength];
-function handleEnd(x,withdraw,angle,strength)   = [x-adj_ang_to_opp(strength,angle), x-withdraw -strength];
-function endHandle(angle)= 
-    angle < 90 ? 
-        [fin_base + adj_ang_to_opp(fin_end_strength,90-angle),fin_end_strength] 
-        : 
-        [fin_base - adj_ang_to_opp(fin_end_strength,angle-90),fin_end_strength] 
-        ;
-
-//function backPoint() = [fin_base-(fin_back_widthdraw/100*fin_base),fin_back_height/100*fin_height];
-
-function decrease_y(points, percentage) = [ for (p = points) [p[0], p[1] * (1 - percentage/100)]];
-
-function pathProfile(points) = bezpath_curve(points,N=3);
-
-// Surf Fin profile
-fin_profile         = pathProfile( profile_points );
-
-function expandPath(path,delta) = 
-        offset(
-            deduplicate(path),
-            delta=delta,
-            chamfer=false,
-            same_length=true
-       )
-    ;
 
 
 

Readme.md

@@ -17,41 +17,5 @@ The box is designed using library [Fin Base](https://github.com/hrobeers/finbase
 ![](./res/Kitesurf-Fins-Bottom.png)
 ![](./res/Kitesurf-Fins-Top.png)
 
-[Understanding Kitesruf fins](https://24-7boardsports.com/understanding-kitesurf-twintip-board-fins/)
 
 
-## Measure models
-
-Open web app [at](https://0x00019913.github.io/meshy/) and import it to get the volume.
-
-Volume is 21037 mm3.
-
-To convert 21037 cubic millimeters (mm³) to deciliters (dl), you can use the conversion factor that 1 deciliter equals 100000 cubic millimeters.
- 
-Therefore, 21037 cubic millimeters is equivalent to 0.21dl.
-
-
-## Required Material
-
-- Durcisseur : Correspondant à la résine choisie.
-- Fibre de verre :
-Tissus de fibre de verre : Différents grammages, comme le roving (tissé) pour la solidité et le mat pour l'imprégnation.
-- Fibre de carbone :
-Tissus de fibre de carbone : Pour des pièces plus légères et très résistantes.
-- Résine époxy : Choisissez selon les propriétés mécaniques et la température de travail. Il est préférable d'utiliser une résine époxy de bonne qualité pour des pièces finies robustes.
-- Wax (Vonixx Carnauba Plus) R$ 30
-![](./res/products/vonixx_carnauba_plus.webp)
-
-
-
-## Required Tools
-
-
-
-- Gants et masques : Pour la sécurité, car les résines époxy sont toxiques.
-- Scellants et cires de démoulage : Pour faciliter le démoulage et éviter que les pièces ne collent au moule.
-- Ciseaux ou coupe-couteau : Pour découper les tissus de fibre.
-- Pinceaux ou rouleaux : Pour appliquer la résine.
-- Système de dégazage : Optionnel, pour éliminer les bulles d'air dans la résine, améliorant la qualité du composite.
-- Seringue
-