From 57370a6577cee954973436a4f41b7206dc391265 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 9 Jun 2013 00:24:44 +0100
Subject: [PATCH] crossbar-computer-led-mount: cross sections done?

---
 crossbar-computer-led-mount.scad | 38 ++++++++++++++++++++++++++++++--
 1 file changed, 36 insertions(+), 2 deletions(-)

diff --git a/crossbar-computer-led-mount.scad b/crossbar-computer-led-mount.scad
index 45f1f2d..b86b4b9 100644
--- a/crossbar-computer-led-mount.scad
+++ b/crossbar-computer-led-mount.scad
@@ -70,6 +70,17 @@ module TowerWallCrossSection(){
 	   [-backfront_mate_extra, -tower_base_height]]);
 }
 
+module TowerWallSomeEdge(front){
+  minkowski(){
+    difference(){
+      TowerWallCrossSection();
+      translate([front ? 0.10 : -0.10, 0])
+	TowerWallCrossSection();
+    }
+    circle(r=tower_wall_thick, $fn=8);
+  }
+}
+
 module TowerBulkCrossSection(){
   intersection(){
     TowerWallCrossSection();
@@ -77,9 +88,32 @@ module TowerBulkCrossSection(){
       translate([-tower_over_max_y/2,
 		 tower_frontheight + tower_overhang*sin(tower_over_angle)/2])
 	circle(r = led_depth);
+      TowerWallSomeEdge(true);
+      translate([-50, -50])
+	square([100, 50]);
+    }
+  }
+}
+
+module TowerRearWallCrossSection(){
+  intersection(){
+    TowerWallCrossSection();
+    union(){
+      intersection(){
+	translate([0,-10]) square([100, 10+tower_frontheight]);
+	TowerWallSomeEdge(false);
+      }
+      TowerBulkCrossSection();
     }
   }
 }
 
-%TowerWallCrossSection();
-TowerBulkCrossSection();
+module TowerDemo(){
+  %TowerWallCrossSection();
+  //TowerBulkCrossSection();
+  TowerRearWallCrossSection();
+}
+
+TowerDemo();
+//TowerWallSomeEdge(false);
+//TowerWallFrontEdge();
-- 
2.30.2