earring-stand: wip FrontPattern

[reprap-play.git] / earring-stand.scad

diff --git a/earring-stand.scad b/earring-stand.scad
index 154a5a2c32df85a462338e1b46d50d4b7013e30a..8a77ed41ad7d248632651acafd00066c1e5c074c 100644 (file)
--- 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);
@@ -223,19 +234,57 @@ module Base(){
          thicks[0]]);
 }
 
+module FrontPattern(){
+  ystride = front_hex_stride;
+  xstride = front_hex_stride * cos(30) * 2;
+  difference(){
+    square([front_width,
+           front_height - eclip_wall_offset + thicks[1]]);
+    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 - (-ppxl) + thicks[1],
-         thicks[1]]);
+    linear_extrude(height=thicks[1])
+      FrontPattern();
   }
 }
 
 module Back(){
   ObjectJoins(2);
+
+  zmin = pr[1];
+  zmax = pq[1] + eclip_prong_th;
+  height = zmax - zmin;
+
+  translate([pr[0] + eclip_wall_offset - thicks[2],
+            0, 0])
+    rotate([0,90,0])
+    rotate([0,0,90]) {
+    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]);
+    }
+  }
 }
 
 module Demo(){