From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Tue, 27 May 2014 21:09:47 +0000 (+0100)
Subject: brompton-computer-guard: wip, have arch and ends
X-Git-Tag: filamentspool-v2-release~373^2~1
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=53d2ef8ac0f4adbbbdccb524c485a60ffb778685;p=reprap-play.git

brompton-computer-guard: wip, have arch and ends
---

diff --git a/brompton-computer-guard.scad b/brompton-computer-guard.scad
index 1744ac7..aaeaa7b 100644
--- a/brompton-computer-guard.scad
+++ b/brompton-computer-guard.scad
@@ -14,6 +14,8 @@ echo(arch_alpha,arch_beta);
 arch_in_rad = arch_width/2 / sin(arch_beta);
 arch_to_chord = arch_in_rad * cos(arch_beta);
 
+end_thick = arch_thick;
+
 //arch_to_chord = (arch_width/2)*(arch_width/2)/arch_height;
 //arch_in_rad = arch_to_chord + arch_height;
 //arch_in_rad2 = sqrt(arch_to_chord*arch_to_chord +
@@ -25,11 +27,17 @@ module ArchProfile(){
   intersection(){
     translate([-200,0])
       square([400,200]);
-    translate([0,-arch_to_chord]){
-      difference(){
-	circle(arch_in_rad + arch_thick, $fa=0.1);
-	circle(arch_in_rad, $fa=0.1);
+    union(){
+      translate([0,-arch_to_chord]){
+	difference(){
+	  circle(arch_in_rad + arch_thick, $fa=0.1);
+	  circle(arch_in_rad, $fa=0.1);
+	}
       }
+      for (m=[0,1])
+	mirror([m,0])
+	  translate([arch_width/2,0])
+	  square([end_width, end_thick]);
     }
   }
   %square([arch_width/2,arch_height]);