Swiss Sign

Kitesurf-Fins.json

@@ -251,14 +251,13 @@
             "resin_escape_diameter": "4",
             "scale_factor": "1",
             "show_debug_layers": "false",
-            "start": "[0, 0]",
             "version": "0.9b"
         },
         "New set 8": {
             "CLEARING": "0.10000000000000001",
             "OFFSET": "0.01",
             "build_fin": "false",
-            "draw_profile": "false",
+            "draw_profile": "true",
             "fin_back_angle": "20",
             "fin_back_height": "30",
             "fin_back_strength": "30",
@@ -292,11 +291,10 @@
             "printable": "true",
             "render_drill_template": "false",
             "render_fin": "false",
-            "render_mold": "true",
+            "render_mold": "false",
             "resin_escape_diameter": "4",
             "scale_factor": "1",
             "show_debug_layers": "false",
-            "start": "[0, 0]",
             "version": "0.9b"
         }
     }

Kitesurf-Fins.scad

@@ -127,9 +127,6 @@ CLEARING = 0.1;
 
 mold_width  = fin_height +2 * mold_extra_width;
 mold_length = fin_width  +2 * mold_extra_width;
-//mold_height = mold_base_height;
-
-//drilling_length = mold_base_height+mold_piston_height+2*OFFSET;
 
 /******************/
 /* Profile points */
@@ -172,40 +169,7 @@ points = flatten([
 ]);
 
 profile  = translate_path( asCurve(points,32),-fin_base/2,0 );
-
-
-if (false) back(100) {
-
-    support( profile,extraWidth = mold_extra_width, height = fin_thickness/2 + mold_extra_height, part="bottom" )  ;
-
-
-    %moldSkirt ( profile, deepness = fin_thickness, heightFactor = mold_skirt_factor, thickness = 3, part = "bottom" );
-    %moldSkirt ( profile, deepness = fin_thickness, heightFactor = mold_skirt_factor, thickness = 3, part = "top" );
-}
-
-
-//mold_support_height        = 10;
-//mold_extra_width 
     
-//back(50)                showDebugPath (profile_path);
-//back(100)               showDebugPath (profile);
-//back(-55)  left(50) drawProfile(points);
-//back(-50) left(60+120)    drawProfile(points);
-    
-    
-// *****************
-// *  Fin Drawing  *
-// *****************
-if ( render_fin ) {
-    scale([scale_factor, scale_factor, scale_factor]) 
-        buildFin( fin_thickness );
-}
-
-/**
- * Render Mold
- */
-if ( render_mold )              buildMold();    
-if ( render_drill_template )    buildDrillTemplate();
 
 
 
@@ -300,38 +264,6 @@ module buildMold() {
        */ 
 }
 
-/**
- * Mold Case 
- *
- * @param height - Height of the case
- * @param bottom - Is bottom or top 
- */
-module case( height , bottom=true ) {
-    difference() {
-        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
-        mirror([bottom ? 0:1,0,0])
-        back(38) left(55)
-                color("Red")
-                    up(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
  * 
@@ -486,23 +418,37 @@ echo ("**********************");
   
     
     
- module drawProfile( points,debug = true ){
+ module drawProfile( points,layouts,debug = true, r = 1.5, text_size = 40  ){
-
+    for (i = [ 0 : len( layouts ) - 1 ]) {
-    text_size=40;
+        debugPoint ( 
-
+            points[i == 0 ? 0 : i * 3], 
-    debugPoint (start,      "Start",    "Red"                   ,textSize=text_size , t=[-20,4,0]);
+            id       = layouts[i][0],
-    debugPoint (top_point,  "Top",      "Blue"                  ,textSize=text_size , t=[-5,5,0]);
+            color    = layouts[i][1],
-    debugPoint (edge_point, "Edge",     "Brown"                 ,textSize=text_size , t=[10,-5,0]);
+            t        = layouts[i][2],
-    debugPoint (counter_edge_point,     "Counter Edge", "Brown" ,textSize=text_size , t=[35,-5,0]);
+            textSize = text_size,
-    debugPoint (tail_point, "Tail",     "Yellow"                ,textSize=text_size , t=[8,-5,0]);
+            r        = r
-    debugPoint (end_point,  "End",      "Yellow"                ,textSize=text_size , t=[13,4,0]);
+        );
-    
+    }
     debug_bezier(points, N=3,width=1.2);
 }
 
 
-// Draw fin profile
+
-if ( draw_profile ) drawProfile( points, true  );
+
+if ( draw_profile ) 
+    drawProfile( 
+        points, 
+        [
+            //["Start" /*,       "Red",      [-20,4,0]*/],
+            ["Start",       "Red",      [-20,-14,0]],            
+            ["Top"  ,       "Blue",     [-5,5,0]],
+            ["Edge"  ,      "Brown",    [10,-5,0]],
+            ["Counter Edge","Orange",   [35,-5,0]],
+            ["Tail"  ,      "Yellow",   [8,-5,0]],
+            ["End"  ,       "Red",   [8,-10,0]],
+        ],
+        text_size = 40
+    );
 
 echo ("****************************");
 echo ("** Build              **");
@@ -510,7 +456,21 @@ echo ("****************************");
 echo (str("filename :",name,"-",mold_part,"-"/*,partition,*/,version,".stl","       "));
 
 
-
+// *****************
+// *  Fin Drawing  *
+// *****************
+if ( render_fin ) 
+    scale([scale_factor, scale_factor, scale_factor]) 
+        buildFin( fin_thickness );
+
+/**
+ * Render Mold
+ */
+if ( render_mold )              
+    buildMold();    
+    
+if ( render_drill_template )    
+    buildDrillTemplate();
 
 
 

Readme.md

@@ -25,7 +25,14 @@ Fin profile is defined using bézier 3 points control
 ![](./res/Kitesurf-Fins-Bottom.png)
 ![](./res/Kitesurf-Fins-Top.png)
 
-[Understanding Kitesruf fins](https://24-7boardsports.com/understanding-kitesurf-twintip-board-fins/)
+### Control Points
+
+Points are Bézier 3 points with before and after control points :
+
+![](./res/Kiteboard-Points.png)
+
+
+[Understanding Kitesurf fins](https://24-7boardsports.com/understanding-kitesurf-twintip-board-fins/)
 
 
 ### Measure models

Swiss-Sign.scad

@@ -0,0 +1,140 @@
+
+include <BOSL2/std.scad>;
+
+
+red_color = [0.69, 0.15, 0.15]; 
+
+
+$fn=64;
+/**
+ * Creates a Swiss cross shape with optional background.
+ *
+ * @param w - Width of the cross (number, positive)
+ * @param h - Height of extrusion (number, positive)
+ * @param bg - If true, adds a red background (boolean, default: true)
+ *
+ * Usage:
+ * swiss_x(w, h, bg);
+ *
+ * Example:
+ *
+ * swiss_x(50, 10); // Cross without background
+ * swiss_x(50, 10, true); // Cross with red background
+ */
+module swiss_x(w, h, bg = true) {
+    // Parameter validation
+    assert(is_num(w) && w > 0,  "Width 'w' must be a positive number.");
+    assert(is_num(h) && h > 0,  "Height 'h' must be a positive number.");
+    assert(is_bool(bg),         "Background 'bg' must be a boolean.");
+
+    // Calculate dimensions
+    l = w * 80/110;  // Length of cross arm
+    t = w * 24/110;  // Thickness of cross arm
+    
+    // Half dimensions for point calculation
+    hw = l / 2;  // Half width
+    ht = t / 2;  // Half thickness
+    
+    // Points for the cross shape
+    pts = [
+        [-hw, ht],  // 0
+        [-ht, ht],  // 1
+        [-ht, hw],  // 2
+        [ ht, hw],  // 3
+        [ ht, ht],  // 4
+        [ hw, ht],  // 5
+        [ hw,-ht],  // 6
+        [ ht,-ht],  // 7
+        [ ht,-hw],  // 8
+        [-ht,-hw],  // 9
+        [-ht,-ht],  // 10
+        [-hw,-ht]   // 11
+    ];
+    
+    // Draw white cross
+    color("white")
+        linear_extrude(h)
+            polygon(pts);
+
+    // Optional red background
+    if (bg)             
+        color("red")
+            linear_extrude(h/2)
+                square(w, center=true);    
+}
+
+// Example usage
+//swiss_x(w = 8, h = 1, bg = false); // Extrude to 10 units in height
+
+module swiss_x_2(w, h, bg = true) {
+       // Calculate dimensions
+    l = w * 80/110;  // Length of cross arm
+    t = w * 24/110;  // Thickness of cross arm
+    w2 = l-t;
+    echo ("l",l);
+    echo ("t",t);
+    echo ("x",x);
+    
+    
+    // Half dimensions for point calculation
+    hw = l / 2;  // Half width
+    ht = t / 2;  // Half thickness    
+
+    // Points for the cross shape
+    pts = [
+        [-hw, ht],  // 0
+        [-ht, ht],  // 1
+        [-ht, hw],  // 2
+        [ ht, hw],  // 3
+        [ ht, ht],  // 4
+        [ hw, ht],  // 5
+        [ hw,-ht],  // 6
+        [ ht,-ht],  // 7
+        [ ht,-hw],  // 8
+        [-ht,-hw],  // 9
+        [-ht,-ht],  // 10
+        [-hw,-ht]   // 11
+    ];    
+    
+    x = w * 26/110;  // Thickness of cross arm
+    x1 = hw + ht; 
+    
+    //down(h) %swiss_x( w = w, h = h, bg = false);
+    f = 1.8;
+    d = 0.14;
+    
+    s1 = t*1.2;
+    s2 = (hw-ht) * 1.1; 
+    
+    r = w * 3/110;
+    
+    linear_extrude(h) difference() {
+        //color (red_color) round2d(r=3)  {
+        color (red_color) round2d(r=r)  {
+            translate([0,x1,0]) 
+                square((f-0*d) * s1 *0.8,center=true);               
+            translate([x,x,0]) 
+                square((f-1*d)  * s2,center=true,anchor=LEFT);
+            translate([x1,0,0]) 
+                square((f-2*d)  * s1,center=true);
+            translate([x,-x,0]) 
+                square((f-3*d)  * s2,center=true,anchor=LEFT);
+            translate([0,-x1,0]) 
+                square((f-4*d) * s1,center=true);
+            translate([-x,-x,0]) 
+                square((f-5*d) *s2,center=true,anchor=LEFT);
+            translate([-x1,0,0]) 
+                square((f-6*d) * s1,center=true);
+            translate([-x,x,0]) 
+                square( (f-7*d) * s2* 1.1,center=true,anchor=LEFT);
+        };
+        round2d(r=r) polygon(pts);    
+    }
+   
+
+}
+
+//swiss_x_2(w = 110, h = 1, bg = false); // Extrude to 10 units in height
+swiss_x_2(w = 10, h = 2, bg = false); // Extrude to 10 units in height
+
+

common.scad

@@ -32,13 +32,16 @@ function handle(point,angle,strength) = [
  * Show Debug point
  */
 module debugPoint(point, id, color,textSize=20,r=1.5,t = [0,0,0]) {
+
+    translation = is_undef(t) ? [0,0,0] : t;
+
     translate(point) {
-        color(color) sphere(r = r);
+        color(is_undef(color) ? "white" : color) sphere(r = r);
         
         //translate([3, 3, 0.6]) {
 
        
-        translate([textSize/7+t[0], textSize/7+t[1], textSize/10+t[2]]) {
+        translate([textSize/7+translation[0], textSize/7+translation[1], textSize/10+translation[2]]) {
             color("white") 
             scale([0.2, 0.2, 1]) 
             linear_extrude(height = 0.1)