Fin and box rendering

Readme.md

@@ -1,3 +1,9 @@
 # Surf Fins
 
 A project to create mold and makes surf fins in Fiber glass
+
+
+
+## Box
+
+The box is designed using library [Fin Base](https://github.com/hrobeers/finbases)

SurfFins.scad

@@ -3,6 +3,7 @@ include <BOSL2/std.scad>;
 include <BOSL2/beziers.scad>;
 include <BOSL2/rounding.scad>;
 include <BOSL2/skin.scad>;
+include <./lib/chinook.scad>
 
 
 /************************************************/
@@ -22,7 +23,8 @@ fin_sweep        = 25; // Sweep Angle [Point 1]
 fin_counter_angle = 30;     // counter angle [Point 2] 
 fin_counter_strength = 20;  // Length [Point 2] 
 
-fin_base  = 200; // Width at the base in mm
+// Length at the base in mm
+fin_base  = 200; 
 
 
 fin_width_tip   = 5; // Width at the tip in mm
@@ -44,6 +46,38 @@ base_tickness=9.2;
 base_extra_thickness=80;
 
 
+/* [US Box] */
+// Dimensions in mm
+//length = 180;
+length=fin_base;
+height = 25;
+thick  = 9.2;
+mirror_vec = [1,1,0];
+
+//screw_pos = 0.0096*1000;
+screw_pos = 9.6;
+//screw_dia = 0.0045*1000;
+screw_dia = 4.5;
+
+//tab_height = 0.013*1000;
+tab_height = 13;
+tab_length = screw_pos * 2;
+tab_round  = tab_height;
+
+// real pin: d=0.0048 -> drill to fit
+//pin_dia   = 0.003*1000;
+pin_dia   = 3;
+//pin_depth = 0.0164*1000;
+pin_depth = 16.4;
+//pin_back  = 0.009*1000;
+pin_back  = 9;
+
+// Thickness to cut for easier sliding (0 for no cut)
+//thick_cut = 0.001*1000;
+thick_cut = 1;
+
+
+
 
 /* [Debugging] */
 
@@ -54,6 +88,7 @@ show_debug_layers = false;
 draw_profile = false;
 
 draw_fin = true;
+draw_box = true;
 
 
 $fn=32;
@@ -131,6 +166,13 @@ layers= [layer_0,layer_1,layer_2];
 echo ("Layers count ",len(layers));
 
 
+// ****************
+// *  Box Drawing     *
+// ****************
+if (draw_box) {
+    xflip() finfit(length, mirror_vec);
+}
+
 
 // ****************
 // *  Fin Drawing     *