Kiteboard fin drill template

Kitesurf-Fins.json

@@ -36,7 +36,6 @@
             "base_extra_thickness": "20",
             "base_tickness": "8",
             "build_fin": "true",
-            "build_mold": "true",
             "draw_profile": "false",
             "fin_back_angle": "20",
             "fin_back_height": "30",
@@ -68,6 +67,88 @@
             "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"
         }
     }
 }

Kitesurf-Fins.scad

@@ -10,6 +10,17 @@ 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                                  */
 /************************************************/
@@ -62,9 +73,6 @@ draw_profile = false;
 // Draw Fin
 build_fin = false;
 
-// Build mold
-build_mold = true;
-
 /* [Mold] */
 
 // Mold base height
@@ -83,8 +91,13 @@ 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] 
@@ -92,9 +105,6 @@ scale_factor    = 1.0; // [0.1:0.1:2]
 // Printable rendering
 printable       = true;
 
-// Rendering mold
-//render_mold = true;
-
 
 $fn=64;
 
@@ -102,9 +112,9 @@ $fn=64;
 /* Constants */
 /*************/
 
-
 // Define the offset value as a constant
 OFFSET = 0.01;
+CLEARING = 0.1;
 
 /************************************************/
 /* Derived variable */
@@ -119,14 +129,12 @@ 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 */
 /******************/
@@ -168,59 +176,23 @@ 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 (build_fin) {
+if ( render_fin ) {
-    scale([scale_factor, scale_factor, scale_factor]) buildFin();
+    scale([scale_factor, scale_factor, scale_factor]) 
+        buildFin( fin_thickness );
 }
 
-if (build_mold) {
+/**
-   buildMold();    
+ * Render Mold
-}
+ */
+if ( render_mold )              buildMold();    
+if ( render_drill_template )    buildDrillTemplate();
+
+
 
 /**
  * Build mold
@@ -228,29 +200,27 @@ if (build_mold) {
  */
 module buildMold() {
     // Bottom mold
-    difference() { 
+    if (mold_part !=  "top") 
-        case(mold_base_height,true);
+    
-        // Piston
+        difference() { 
-        down(piston_depth-OFFSET) fwd(20) bottomInsert(); 
+            case(mold_base_height,true);
-    }
+            // Piston
+            down(piston_depth-OFFSET) fwd(20) bottomInsert(); 
+        }
     // Top Mold
-    up(printable ? 0 : 60) fwd(printable ? fin_height+50 : 0) down(mold_base_height) mirror([0,0,printable ? 1 : 0 ])  {
+    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() {
-        difference() {
+                union() {
-            union() {
+                    // case
-                // case
+                    case(mold_top_height,false); 
-                case(mold_top_height,false); 
+                    // Piston
-
+                    mirror([1,0,0])        
-                // Piston
+                    down(mold_top_height+piston_depth-OFFSET) fwd(20) topPiston(); 
-                mirror([1,0,0])        
+                };
-                down(mold_top_height+piston_depth-OFFSET) fwd(20) topPiston(); 
+                resin_escape(40);
-            };
+            }
-            resin_escape(40);
+        }      
-        
-        };
-       
-    };         
 }
 
 /**
@@ -259,35 +229,7 @@ module buildMold() {
  * @param height - Height of the case
  * @param bottom - Is bottom or top 
  */
-module case_old(height,bottom=true) {
+module case( 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,
@@ -298,41 +240,71 @@ 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);              
-                            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
 }
 
 
@@ -364,17 +336,26 @@ 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(flip=false) {
+module buildFinSide(thickness,flip=false) {
-    debug=false;
     mirror([0,0,flip ? 1 : 0])
         color(flip ? "Gray" : "LightGray") /*up(fin_thickness/4)*/ /*down(fin_thickness) */
-        ellipse_extrude( fin_thickness/2*(debug?1.2:1)) 
+        ellipse_extrude( thickness / 2 ) 
             polygon(profile_path);
 } 
 
@@ -386,42 +367,16 @@ module resin_escape(length) {
 // *  Drilling     *
 // *****************
 module drilling(){
+    /*fwd(20)*/ color("Red") /*up(mold_piston_height+5)*/ up(-OFFSET)
+    orient(DOWN)
+        threaded_rod(
+            d=merge_holes_diameter, 
+            l=drilling_length, 
+            pitch=1.5, 
+            anchor=BOTTOM,
+            //orient=BOTTOM
 
-//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, 
-        pitch=1.5, 
-        anchor=BOTTOM,
-        //orient=BOTTOM
-
-    );
-}
-
-
-
-
-//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);
-        }
-    }
 }
 
 
@@ -430,28 +385,8 @@ module subtracted(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  );
-}
 
 
 /**
@@ -523,11 +458,48 @@ 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

@@ -17,5 +17,40 @@ 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.
+
+
+
+
+## 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
+