Updated readme and images

readme.md

@@ -676,14 +676,15 @@ Aluminium  extrusion.
 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
+|   1 | ```extrusion(E1515, 80)``` |  Extrusion E1515 x 80mm |
 |   1 | ```extrusion(E2020, 80)``` |  Extrusion E2020 x 80mm |
 |   1 | ```extrusion(E2040, 80)``` |  Extrusion E2040 x 80mm |
 |   1 | ```extrusion(E2060, 80)``` |  Extrusion E2060 x 80mm |
 |   1 | ```extrusion(E2080, 80)``` |  Extrusion E2080 x 80mm |
-|   1 | ```extrusion(E3030, 80)``` |  Extrusion E3030 x 80mm |
-|   1 | ```extrusion(E3060, 80)``` |  Extrusion E3060 x 80mm |
-|   1 | ```extrusion(E4040, 80)``` |  Extrusion E4040 x 80mm |
-|   1 | ```extrusion(E4080, 80)``` |  Extrusion E4080 x 80mm |
+|   1 | ```extrusion(E3030, 80, cornerHole = true)``` |  Extrusion E3030 x 80mm |
+|   1 | ```extrusion(E3060, 80, cornerHole = true)``` |  Extrusion E3060 x 80mm |
+|   1 | ```extrusion(E4040, 80, cornerHole = true)``` |  Extrusion E4040 x 80mm |
+|   1 | ```extrusion(E4080, 80, cornerHole = true)``` |  Extrusion E4080 x 80mm |
 
 
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tests/extrusions.scad

@@ -23,7 +23,7 @@ include <../vitamins/extrusions.scad>
 
 module extrusions()
     layout([for(e = extrusions) extrusion_width(e)], 10)
-        extrusion(extrusions[$i], 80);
+        extrusion(extrusions[$i], 80, cornerHole = extrusion_width(extrusions[$i]) > 20);
 
 if ($preview)
     extrusions();

vitamins/extrusion.scad

@@ -101,7 +101,8 @@ module extrusion_cross_section(type, cornerHole) {
         translate([0,i*width+(width-height)/2])
             difference() {
                 square([centerSquare,centerSquare],center=true);
-                circle(d=extrusion_center_hole(type));
+                if(extrusion_center_hole(type)>0)
+                    circle(d=extrusion_center_hole(type));
             }
     translate([0,(width-height)/2])
         for(angle=[0,90])

vitamins/extrusions.scad

@@ -20,6 +20,7 @@
 // Extrusion
 //
 //                   W   H    d1   d2   s  cw   cwi    t  st  f
+E1515  = [ "E1515", 15, 15,  2.5,   0,5.7,3.4,  5.7, 1.1,1.1, 0.5 ];
 E2020  = [ "E2020", 20, 20,  4.2,   3,  8,  6, 12.0,   2,  2, 1 ];
 E2040  = [ "E2040", 20, 40,  4.2,   3,  8,  6, 12.0,   2,  2, 1 ];
 E2060  = [ "E2060", 20, 60,  4.2,   3,  8,  6, 12.0,   2,  2, 1 ];
@@ -29,7 +30,7 @@ E3060  = [ "E3060", 30, 60,  6.8, 4.2, 12,  8, 16.5,   2,  2, 1 ];
 E4040  = [ "E4040", 40, 40, 10.5, 6.0, 15, 10, 20.0, 5.5,  3, 1 ];
 E4080  = [ "E4080", 40, 80, 10.5, 6.0, 15, 10, 20.0, 5.5,  3, 1 ];
 
-extrusions = [E2020,E2040,E2060,E2080,E3030,E3060,E4040,E4080];
+extrusions = [E1515,E2020,E2040,E2060,E2080,E3030,E3060,E4040,E4080];
 
 use <extrusion.scad>