Surf-Fins-10inch.json

@@ -36,6 +36,7 @@
             "parts": "all",
             "piston_depth": "5",
             "printable": "false",
+            "render_drill_template": "false",
             "resin_escape_diameter": "4",
             "scale_factor": "1",
             "show_curve_points": "false",
@@ -83,6 +84,7 @@
             "pin_dia": "3",
             "piston_depth": "5",
             "printable": "true",
+            "render_drill_template": "false",
             "resin_escape_diameter": "4",
             "scale_factor": "1",
             "screw_dia": "4.5",
@@ -135,6 +137,7 @@
             "pin_dia": "3",
             "piston_depth": "5",
             "printable": "true",
+            "render_drill_template": "false",
             "resin_escape_diameter": "4",
             "scale_factor": "1",
             "screw_dia": "4.5",

Surf-Fins-10inch.scad

@@ -106,8 +106,6 @@ skirt_angle=80;
 // Dimensions in mm
 //length = 180;
 //length=fin_base;
-
-box_thickness = 9.6;
 height = 25;
 thick  = 9.2;
 mirror_vec = [1,1,0];
@@ -154,6 +152,7 @@ draw_profile = false;
 build_fin       = false;
 build_box       = false;
 build_mold     = true;
+render_drill_template     = false;
 
 parts           = "all";      // [all, top, bottom]
 
@@ -285,14 +284,13 @@ if ( build_box ) {
  * Render Mold
  */
 if ( build_mold )              buildMold();    
+if ( render_drill_template )    buildDrillTemplate();
 
 
 module buildCompletFin() {
-    difference(){
+    union(){
         buildFin( fin_thickness );
         //buildBox();
-        // Remove extra base
-        baseMask();
     }
 }
 
@@ -314,32 +312,27 @@ module buildBoxMold() {
     // To be defined
 }
 
-module baseMask() {
-    fwd(OFFSET) cube([fin_base*1.1,base_extra_thickness*1.1,fin_thickness*1.1],anchor=BACK);
-}
 
 
 
-module usBoxMask() {
+/**
-    left(80) color("Blue") usBox(fin_base+30,thickness = box_thickness+2*OFFSET,drill=false);
+ * Remove bottom part of the fin mold to let the box mold do the job
-}
+ *
+ */
+module moldBottomMask(moldThickness = 3,height,angle) {
 
-
+    // Remove bottom part 
-
+    //color("Red") cube([fin_width,base_extra_thickness,80],anchor=BACK);
-/*
+    deviation = opp_ang_to_adj (height,angle);
-module bottomSupport() {
+    //back(moldThickness)
-    moldHeight = 10;
+    back(-1)
-    moldContour =  expandPath(profile,mold_extra_width);
+    down(OFFSET)
-    down(moldHeight) 
+    //up(2)
-        linear_extrude (moldHeight) polygon(moldContour);  // bottom support
+    color ("Blue") prismoid(
-}
+                size1=[fin_width/2*1.2, moldThickness*2], 
-*/
+                size2=[fin_width/2*1.2, moldThickness*2+ 2*deviation], 
-
+                h=height+OFFSET*2 
-module support( part ) {
+            );
-    moldHeight = 10;
-    moldContour =  expandPath(profile,mold_extra_width);
-    down( (part == "bottom" ? 1 : 0) * moldHeight) 
-        linear_extrude (moldHeight) polygon(moldContour);  // bottom support
 }
 
 /**
@@ -347,44 +340,55 @@ module support( part ) {
  * 
  */
 module buildMold() {
+    moldHeight = 10;
+    skirtHeight = 30;
+
+    
+    moldContour =  expandPath(profile,mold_extra_width);
+    buildMoldSkirt(skirtHeight,mold_extra_width,3);
+    
     // Bottom Mold
     if (mold_part != "top") {
+    
         // Fin mold
         difference() {
-            support(part="bottom");
+            union() {
-            usBoxMask();
+                down(moldHeight) linear_extrude (moldHeight) polygon(moldContour);  // bottom 
+                //back(5) left(95) cube([20+10,25,moldHeight],anchor=BACK+TOP);          // Box shell
+                difference() {
+                    skirt( profile, moldThickness = 3 , angle = skirt_angle, moldDeep = fin_thickness );
+                    moldBottomMask(height=fin_thickness * 3,angle=skirt_angle);
+                    
+                    
+                    //
+                    //moldJunctionMask(height=fin_thickness * 3,angle=skirt_angle);
+                }
+                
+            };
+            // Remove Fin
             buildCompletFin();
         }
         // Box mold
+        assert (fin_base,"fin_base missing");
+        echo ("fin_base----------",fin_base);
+        //          left(80) finBoxMold( length = 130, finLength = fin_base );
+        //diff() {
         difference() {
-            left(80)  finBoxMold( fin_base+30,part="bottom",skirt=false );
+            left(80) finBoxMold( fin_base+30,skirtAngle = skirt_angle );
-            // Remove fin
+            
+            // Remove junction between skirt
+            //tag("remove")
+            moldJunctionMask(height=fin_thickness * 3,angle=skirt_angle);
+            //tag("remove")        
             buildCompletFin();       
         }
-        // Mold skirt
+        //moldJunctionMask(height=fin_thickness * 3,angle=skirt_angle);
-        moldSkirt( part="bottom" );
-    }
-    // Top
-    if (mold_part != "bottom") up(80) {
-        difference(){
-            support(part="top");
-            usBoxMask();
-            buildCompletFin();
-            
-        }    
-        // Box mold
-        difference() {
-            left(80)  finBoxMold( fin_base+30,part="top",skirt=false );
-            // Remove fin
-            //buildCompletFin(); 
-        }
-        // Mold skirt
-        down( fin_thickness * 3 ) moldSkirt( part="top" );    
-    }
         
         
         
-    //up(50) buildCompletFin();
+    }
+    
+    up(50) buildCompletFin();
     
     //left(300) linear_extrude (skirtHeight) polygon(moldSkirtRegion);
     /*
@@ -411,33 +415,6 @@ module buildMold() {
     */    
 }
 
-/**
- * Build the piston skirt 
- * 
- * @param part   -  Part could be 'top' or 'bottom'
- */
-module moldSkirt( part ){
-    assert( part , "'part' parameter should be defined in mold skirt");
-    
-    box_profile         = move([-80,0],profileUS (fin_base+30));
-    finAndBoxProfile    = path_merge_collinear(union([box_profile,profile]));    
-    
-    //if (part == "bottom") {
-
-    skirt( finAndBoxProfile, side = part ,moldThickness = 3 , angle = skirt_angle, moldDeep = fin_thickness );
-    //} else if (part == "top") {
-        
-    
-    //}
-    
-}
-
-//moldSkirt(part="top");
-
-
-
-
-
 module moldJunctionMask(moldThickness = 3,height,angle){
 
     deviation = opp_ang_to_adj (height,angle);
@@ -478,6 +455,81 @@ module buildMoldSkirt( height,offset,thickness ) {
     }
 }
 
+/**
+ * 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
+ * 
+ */ 
+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);
+        }
+    }
+}
+
 
 // *****************
 // * Bottom insert *
@@ -536,10 +588,109 @@ module resin_escape(length) {
     color ("Blue") cylinder(h=length, r=resin_escape_diameter/2);
 }
 
+// *****************
+// *  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
+
+        );
+}
 
 function addBase(path) = concat(path,[[fin_base,-base_extra_thickness],[0,-base_extra_thickness]]);
 
     
+// Function to create a parallel bezier curve offset by a given amount
+function offset_bezier_points(points, offset_distance, normal=[0,0,1]) =
+    [for (pt = points) pt + offset_distance * normal];
+
+// Function to create multiple parallel bezier curves
+function create_patch_points(base_points, width, steps=4) =
+    [for (i = [0:1:steps]) 
+        let(
+            t = i/steps,
+            offset = width * t
+        )
+        offset_bezier_points(base_points, offset)
+    ];
+
+// Create the bezier patch VNF
+function make_bezier_patch_from_curve(base_points, width, length_steps=32, width_steps=8) =
+    let(
+        // Generate parallel curves to form patch
+        patch_points = create_patch_points(base_points, width, width_steps),
+        // Generate points for each curve
+        curves_points = [for (curve_pts = patch_points)
+            bezier_points(curve_pts, length_steps)
+        ],
+        // Create vertices for VNF
+        vertices = flatten(curves_points),
+        // Calculate indices for faces
+        indices = [
+            for (i=[0:1:width_steps-1], j=[0:1:length_steps-1])
+            let(
+                idx00 = i*(length_steps+1) + j,
+                idx10 = (i+1)*(length_steps+1) + j,
+                idx11 = (i+1)*(length_steps+1) + (j+1),
+                idx01 = i*(length_steps+1) + (j+1)
+            )
+            each [[idx00, idx10, idx11, idx01]]
+        ]
+    )
+    [vertices, indices];
+    
+    
+if (false) {
+
+    //vnf = bezier_vnf(profile_curve_with_base, splinesteps=10);
+    
+    /*
+    vnf = make_bezier_patch_from_curve(points, width=10);
+    back (100) {
+        cube([20,20,20]);
+        vnf_polyhedron(vnf);
+    } 
+  */  
+  /*
+  polygon(profile_curve_with_base);
+        vnf2 =vnf_from_region(polygon(profile_curve_with_base));
+    //vnf2 = vnf_from_polygons(profile_curve_with_base, fast=true);
+    vnf_polyhedron(vnf2);    
+    */
+    
+    //curve_points = bezier_curve(points,N=3, splinesteps=32); 
+    curve_points = bezpath_curve(points,N=3, splinesteps=32); 
+    curve_points2 = [ for(p = curve_points) [p.x, p.y, 0]]; // Offset by 1 in Z
+    //echo ("curve_points",curve_points);
+    curve_points_offset = [ for(p = curve_points) [p.x, p.y, (p.z != undef ? p.z : 0) + 1 ]]; // Offset by 1 in Z
+
+// Combine original and offset points to form a 2D array for a simple patch
+    patch_points = [
+        curve_points,
+        curve_points_offset
+    ];
+    //echo ("patch_points",patch_points);
+    //echo ("curve_points_offset",curve_points_offset);
+    echo ("curve_points2",curve_points2);
+    echo ("length curve_points2",len(curve_points2));
+   
+    //vnf_5 = bezier_vnf(patch_points, caps=false, splinesteps=10);
+    //vnf_5 = bezier_vnf(curve_points2, splinesteps=10);
+    echo ("is_bezier_patch",is_bezier_patch(curve_points));
+    echo ("is_bezier_patch",is_bezier_patch(curve_points2));
+    
+    //vnf_5 = bezier_vnf(curve_points_offset, splinesteps=10);
+    
+
+}    
+
 /**
  * Draws a profile based on Bezier path points with optional debug visualization.
  * 
@@ -570,7 +721,3 @@ module drawProfile( points,debug = true ){
 
     
     
-
-
-    
-    

common.scad

@@ -1,6 +1,5 @@
 
 
-include <BOSL2/std.scad>;
 
 // Constants
 
@@ -167,53 +166,18 @@ function layerHeights(n, fin_thickness) =
  * @param side          - Bottom or top part of the mold
  *
  */ 
-module skirt( profile, moldThickness = 4 , angle = 45 , moldDeep, side = "bottom", heightFactor = 3, clearance = 0.2 ) {
+module skirt( profile, moldThickness, angle, moldDeep, side = "bottom", heightFactor = 3 ) {
-    height = heightFactor * moldDeep;
-    echo ("height",height);
     deviation = opp_ang_to_adj (height,angle);
-//    deviation = 3;
+    skirtHeight = heightFactor * moldDeep;
-    
     if ( side == "bottom" ) {
         lowInt  = profile;
         lowExt  = expandPath( lowInt    , moldThickness  );
         highInt = expandPath( lowInt    , deviation  );
         highExt = expandPath( lowInt    , deviation + moldThickness  );
         difference(){
-            skin([lowExt   , highExt   ], z=[0          , height        ] , slices=0);
+            skin([lowExt   , highExt   ], z=[0                          , skirtHeight]          , slices=0);
-            skin([lowInt   , highInt   ], z=[-OFFSET    , height+OFFSET ] , slices=0);
+            skin([lowInt   , highInt   ], z=[-OFFSET   , skirtHeight+OFFSET]   , slices=0);
         }            
-    } else if ( side == "top" ) {
-        lowInt  = expandPath( profile   , -moldThickness  );
-        lowExt  = expandPath( profile   , -clearance  );
-        highInt = expandPath( profile    , +deviation-moldThickness  );
-        highExt = expandPath( profile    , +deviation -clearance  );
-        difference(){
-            skin([lowExt   , highExt   ], z=[0          , height        ] , slices=0);
-            skin([lowInt   , highInt   ], z=[-OFFSET    , height+OFFSET ] , slices=0);
-        }            
-        
     }
 }    
     
-if ( false ) {
-    skirt(
-        rect([30,30]),
-        moldDeep=5,
-        moldThickness = 3,
-        side="bottom"
-    );
-    up(1)
-    skirt(
-        rect([30,30]),
-        moldDeep=5,
-        moldThickness = 3,
-        side="top",
-        clearance=1
-        
-    );
-}
-
-
-
-
-    

lib/finbox_us.scad

@@ -18,11 +18,6 @@ OFFSET=0.01;
 module boxProfileUS( length ,height=23, tabHeight = 8,tabLength = 20, backRounding = 8, backExtra = 10 ) {
 
     
-    echo ("------ height",height);
-    echo ("------ tabHeight",tabHeight);
-    echo ("------ height-tabHeight",height-tabHeight);    
-    assert (height-tabHeight,"height-tabHeight should be bigger than 0");
-    
     tabExtra = opp_ang_to_adj(height-tabHeight,45);
     points = [
         [ -tabLength                    , 0             ,1],            // 0
@@ -63,15 +58,12 @@ module usBox( length, height=23, thickness = 9, tabLength = 20,pinDiameter = 5,p
 }
 
 
-module usBoxMold( length, height=23, thickness = 9, moldThickness = 4,tabLength = 20,part = "bottom",skirtAngle=80 , skirt = true ) {
+module usBoxMold( length, height=23, thickness = 9, moldThickness = 4,tabLength = 20,part = "bottom",skirtAngle=80 ) {
 
 //assert(length == 130,"Not 130");
-    assert (length >0,"length should be bigger than 0");
 
     moldHeight = thickness + 2 * moldThickness;
     skirtHeight = 3 * thickness;
-    echo ("---skirtHeight",skirtHeight);
-    echo ("---part",part);
     deviation = opp_ang_to_adj (skirtHeight,skirtAngle);    // Skirt devitation
     
     baseInt = profileUS (length);
@@ -83,20 +75,11 @@ module usBoxMold( length, height=23, thickness = 9, moldThickness = 4,tabLength
         difference() {
             // Mold
             {
-                //if ( part == "bottom")
+                if ( part == "bottom")
-                    
                     down (moldHeight/2) linear_extrude(moldHeight)    
                         offset(r=moldThickness) 
                             boxProfileUS( length, height );
-
+                if ( part == "top") {
-                /*                        
-                if ( part == "top")
-                    
-                    down (moldHeight/2) linear_extrude(moldHeight)    
-                        offset(r=moldThickness) 
-                            boxProfileUS( length, height );                
-                 */           
-                if ( part == "top__"  ) {
                     //baseInt = profileUS (length);
                     //baseInt = profileUS (length);
                     //topInt  = offset(baseInt,delta=-deviation,chamfer=false,same_length=true);
@@ -115,8 +98,6 @@ module usBoxMold( length, height=23, thickness = 9, moldThickness = 4,tabLength
                     */        
                 }                    
             }        
-            
-            
             // US Box to subtract
             usBox(length,height,drill=false,color="Red");
 
@@ -129,12 +110,14 @@ module usBoxMold( length, height=23, thickness = 9, moldThickness = 4,tabLength
                 linear_extrude( moldHeight )    
                     offset( r = moldThickness*2 ) 
                         boxProfileUS( length, height );                    
-                        
         }
         
-        if ( part == "bottom"  ) {
+        if ( part == "bottom") {
+   // offset is a function
+            
             //topInt  = offset(baseInt,delta=deviation,chamfer=false,same_length=true);
-            if (skirt) difference(){
+            showSkirt = true;
+            if (showSkirt) difference(){
                 skin([baseExt,topExt],z=[0,skirtHeight],slices=0);
                 skin([baseInt,topInt],z=[0,skirtHeight+OFFSET],slices=0);
             }
@@ -146,16 +129,11 @@ module usBoxMold( length, height=23, thickness = 9, moldThickness = 4,tabLength
     
 }
 
-//usBoxMold (130,part="bottom",skirt=false);
+module finBoxMold( length, finLength=-1, skirtAngle = 80, part="bottom") {
-
-//back (30) usBoxMold (130,part="top",skirt=false);
-
-
-module finBoxMold( length, finLength=-1, skirtAngle = 80, part="bottom", skirt = true) {
 
     assert (finLength,"Missing 'finLength' parameter in finBoxMold module");
     //if (part=="bottom") {
-    usBoxMold( length,part=part,skirtAngle=skirtAngle,skirt=skirt );
+    usBoxMold( length,part=part,skirtAngle=skirtAngle );
     //}
     
 }
@@ -188,6 +166,6 @@ module thickness_cut(thickness,height) {
 
 
 
-if (false )down(50) usBoxMold( 130,part="bottom",skirt=false );
+//down(50) usBoxMold( 130,part="bottom" );