add corn

examples/floor_stand/floor_stand.scad

@@ -1,8 +1,9 @@
-module floor_stand(width, height, thickness, joint_spacing) {
+module floor_stand(width, height, thickness, spacing) {
     half_w = width / 2;
     half_h = height / 2;
     half_th = thickness / 2;
-    half_sc = joint_spacing / 2;
+
+    double_spacing = spacing * 2;
 
     $fn = 24;
 
@@ -21,23 +22,8 @@ module floor_stand(width, height, thickness, joint_spacing) {
             }
     }
 
-    module joint_tops(dist) {
-        module joint_top() {
-            linear_extrude(thickness / 4 + half_sc, scale = 0.1) 
-                circle(thickness / 4 + half_sc);
-        }
-
-        half_d = dist / 2;
-        translate([-half_d, 0, 0]) 
-            rotate([0, -90, 0]) 
-                joint_top();     
-
-        translate([half_d, 0, 0]) 
-            rotate([0, 90, 0]) 
-                joint_top();
-    } 
-
     module board_U() {
+        angles = [0, 90, 0];
         difference() {
             union() {
                 linear_extrude(thickness, center = true) 
@@ -45,38 +31,39 @@ module floor_stand(width, height, thickness, joint_spacing) {
                         board_base();
                         square([width / 1.5, height / 3], center = true);
                     } 
-                rotate([0, 90, 0]) 
+                rotate(angles) 
                     linear_extrude(width / 2.25 * 2, center = true) 
-                        circle(thickness / 2);
+                        circle(half_th);
             }
 
-            rotate([0, 90, 0]) 
+            rotate(angles) {
                 linear_extrude(width / 1.5, center = true) 
                     circle(thickness, $fn = 24);
-                   
-            joint_tops(half_w / 1.5 * 2);          
+
+                cone(half_th - spacing, length = half_w / 1.5 - spacing, spacing = spacing, heads = true, void = true);
+            }      
         }
     }
 
     module board_T() {
         linear_extrude(thickness, center = true) 
-            union() {
+            union() { 
                 difference() {
                     board_base();
                     square([width, height / 3], center = true);
                 }
-                translate([0, -height / 12 - joint_spacing / 4, 0]) 
+                translate([0, -height / 12 - spacing / 2, 0]) 
                     difference() {
-                        square([width / 1.5 - joint_spacing, height / 6 + joint_spacing / 2], center = true);
+                        square([width / 1.5 - double_spacing, height / 6 + spacing], center = true);
                         square([width / 1.5 - thickness * 2, height / 6], center = true);
                     }
             }
 
-        rotate([0, 90, 0]) 
-            linear_extrude(width / 1.5 - joint_spacing, center = true) 
+        rotate([0, 90, 0]) {
+            linear_extrude(width / 1.5 - double_spacing, center = true) 
                 circle(half_th, $fn = 24);
-
-        joint_tops(half_w / 1.5 * 2 - joint_spacing);              
+            cone(half_th - spacing, length = half_w / 1.5 - spacing, spacing = spacing, heads = true);           
+        }
     }
 
     module border() {

examples/floor_stand/floor_stand_symbol.scad

@@ -4,6 +4,7 @@ include <multi_line_text.scad>;
 include <shape_taiwan.scad>;
 include <hollow_out.scad>;
 include <floor_stand.scad>;
+include <part/cone.scad>;
 
 text = " Taiwan";
 font = "Arial Black";
@@ -13,7 +14,7 @@ line_spacing = 7;
 stand_width = 40;
 stand_height = 80;
 stand_thickness = 4;
-joint_spacing = 1;
+stand_spacing = 0.5;
 
 symbol_source = "DEFAULT"; // [DEFAULT, PNG, UNICODE]
 
@@ -71,5 +72,5 @@ module content(text, font, font_size, symbol_png, symbol_unicode, symbol_font, s
     }
 }
         
-floor_stand(stand_width, stand_height, stand_thickness, joint_spacing) 
+floor_stand(stand_width, stand_height, stand_thickness, stand_spacing) 
     content(text, font, font_size, symbol_png, symbol_unicode, symbol_font, symbol_font_size, stand_height, stand_thickness, line_spacing);

examples/floor_stand/floor_stand_text.scad

@@ -3,6 +3,7 @@ include <util/split_str.scad>;
 include <hollow_out.scad>;
 include <floor_stand.scad>;
 include <multi_line_text.scad>;
+include <part/cone.scad>;
 
 text = "Coder at Work";
 font = "Arial Black";
@@ -12,7 +13,7 @@ line_spacing = 10;
 stand_width = 40;
 stand_height = 80;
 stand_thickness = 4;
-joint_spacing = 1;
+stand_spacing = 0.5;
 
 module words(text, font, font_size, height, thickness, line_spacing) {
     half_th = thickness / 2;
@@ -31,5 +32,5 @@ module words(text, font, font_size, height, thickness, line_spacing) {
         }
 }
 
-floor_stand(stand_width, stand_height, stand_thickness, joint_spacing) 
+floor_stand(stand_width, stand_height, stand_thickness, stand_spacing) 
     words(text, font, font_size, stand_height, stand_thickness, line_spacing);

src/part/cone.scad

@@ -0,0 +1,30 @@
+module cone(radius, length = 0, spacing = 0.5, angle = 50, void = false, heads = false) {
+    module base(r) {
+        rotate_extrude() {
+            if(length != 0) {
+                square([r, length]);
+            }
+            polygon([
+                [0, length], [r, length], [0, r * tan(angle) + length]
+            ]);
+        }
+
+    }
+    
+    module head() {        
+        if(void) {
+            base(radius + spacing);
+        }
+        else {
+            base(radius);
+        }
+    }
+    
+    if(heads) {
+        head();
+        mirror([0, 0, 1]) head();
+    }
+    else {
+        head();
+    }        
+}