X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=earring-stand.scad;h=976a83f9babacf4e94ec1274a2f42345d0d91cea;hp=bf049ea88d4dda4d96eb6abeaf39426b65898ba8;hb=914da8f1701aedc590aaa542f59ac92e2d9c3bfb;hpb=dc281d4a2d650db5094eacc703c06a02fa15783c

diff --git a/earring-stand.scad b/earring-stand.scad
index bf049ea..976a83f 100644
--- a/earring-stand.scad
+++ b/earring-stand.scad
@@ -5,6 +5,15 @@ include <commitid.scad>
 front_height = 80;
 front_width = 120;
 front_setback = 30;
+front_thick = 2;
+
+front_hex_stride = 20;
+front_hex_dia = 10;
+
+back_thick = 3;
+back_pillarw = 6;
+
+base_thick = 2;
 
 eclip_inner_rad = 2.5;
 eclip_gap_rad = 0.1;
@@ -46,6 +55,8 @@ eclip_wall_offset = -ppxl;
 
 eclip_ra_offset = r2 - 0.1;
 
+eclip_recept_height = r2;
+
 eclip_rhs_offset = ppxl + rgap + eclip_prong_th;
 // does not include main_th
 
@@ -161,7 +172,7 @@ module Sketch(){
   polygon([pq, pp, pr]);
 }
 
-thicks = [ 2, 2, 2 ];
+thicks = [ base_thick, front_thick, back_thick ];
 
 module Joins(alpha, objnum, objnum_f, objnum_m) {
   pitch = (front_width - eclip_each_len) / (num_eclips-1);
@@ -223,14 +234,32 @@ module Base(){
 	  thicks[0]]);
 }
 
+module FrontPattern(){
+  totalh = front_height - eclip_wall_offset + thicks[1];
+
+  ystride = front_hex_stride;
+  xstride = front_hex_stride * cos(30) * 2;
+  difference(){
+    square([front_width, totalh]);
+    for (xi=[ 0 : 10 ])
+      translate([xi * xstride, 0])
+      for (yi=[ 0 : 10 ])
+	translate([0, yi * ystride])
+	for (dv=[ [0,0],
+		  [xstride/2, ystride/2]
+		  ])
+	  translate(dv)
+	    circle(r= front_hex_dia/2, $fn=6);
+  }
+}
+
 module Front(){
   ObjectJoins(1);
   rotate([0, 90-beta, 0])
     translate([0, 0, ppxl])
     rotate([0,0,90]) {
-    cube([front_width,
-	  front_height - eclip_wall_offset + thicks[1],
-	  thicks[1]]);
+    linear_extrude(height=thicks[1])
+      FrontPattern();
   }
 }
 
@@ -245,9 +274,17 @@ module Back(){
 	     0, 0])
     rotate([0,90,0])
     rotate([0,0,90]) {
-    cube([front_width,
-	  height,
-	  thicks[2]]);
+    difference(){
+      cube([front_width,
+	    height,
+	    thicks[2]]);
+      translate([back_pillarw,
+		 eclip_recept_height,
+		 -10])
+	cube([front_width - back_pillarw*2,
+	      height - eclip_recept_height*2 - eclip_prong_th,
+	      20]);
+    }
   }
 }