From 8ee576a28d90ae9ca304b5dfac68f76a8f05af0c Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 9 Aug 2015 08:57:43 +0100
Subject: [PATCH] brompton-computer-guard: commute difference()
 linear_extrude(), making MainCutout flat (nfc)

---
 brompton-computer-guard.scad | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/brompton-computer-guard.scad b/brompton-computer-guard.scad
index 94803d2..88f1994 100644
--- a/brompton-computer-guard.scad
+++ b/brompton-computer-guard.scad
@@ -64,23 +64,28 @@ module Holes(){
 }
 
 module MainCutout(){
-  translate([0,0,-1]) linear_extrude(height=100)
-    ArchCircle(arch_in_rad);
+  ArchCircle(arch_in_rad);
 }
 
 module Arch(){
   difference(){
     rotate([0,0,180]){
-      difference(){
-	linear_extrude(height=arch_breadth) ArchProfile(false);
-	MainCutout();
+      linear_extrude(height=arch_breadth) {
+	difference(){
+	  ArchProfile(false);
+	  MainCutout();
+	}
       }
       difference(){
-	linear_extrude(height=pbase_thick) hull(){
-	  ArchProfile(true);
-	  ArchProfile(false);
+	linear_extrude(height=pbase_thick){
+	  difference(){
+	    hull(){
+	      ArchProfile(true);
+	      ArchProfile(false);
+	    }
+	    MainCutout();
+	  }
 	}
-	MainCutout();
       }
     }
     Holes();
-- 
2.30.2