From 81192e31eb303239abe169957195f860c967bbeb Mon Sep 17 00:00:00 2001
From: Joel Ebel <jbebel@google.com>
Date: Wed, 23 May 2018 01:08:27 -0400
Subject: [PATCH] Support arbitrary legs on top/bottom shell

Add BLLeg, FLLeg, BRLeg, and FRLeg parameters where 0 means put that leg
on the bottom shell, and 1 means put it on the top. Call the legs and
hols modules with a "top" argument where 0 means build the bottom shell
legs/holes, and 1 means build the top. Gate each leg or hole creation
based on logic between XXLeg and top.

This also required making the top shell using mirror() rather than
rotate, since that kept the same leg/hole in the same position when
flipped to the top.
---
 files/U_Box_V104_Test_Cleaned.scad | 94 ++++++++++++++++++++++++------
 1 file changed, 75 insertions(+), 19 deletions(-)

diff --git a/files/U_Box_V104_Test_Cleaned.scad b/files/U_Box_V104_Test_Cleaned.scad
index 080b0ff..34255af 100644
--- a/files/U_Box_V104_Test_Cleaned.scad
+++ b/files/U_Box_V104_Test_Cleaned.scad
@@ -52,6 +52,19 @@ Vent = 1; // [0:No, 1:Yes]
 Vent_width = 1.5;
 
 
+/* [Box Fixation Legs] */
+// - Side screw hole diameter
+ScrewHole = 2.2606;
+// Back left leg
+BLLeg = 1; // [0:Bottom, 1:Top]
+// Back right leg
+BRLeg = 1; // [0:Bottom, 1:Top]
+// Front left leg
+FLLeg = 1; // [0:Bottom, 1:Top]
+// Front right leg
+FRLeg = 1; // [0:Bottom, 1:Top]
+
+
 /* [PCB options] */
 // - Longueur PCB - PCB Length
 PCBLength = 80;
@@ -71,8 +84,7 @@ LeftEdgeMargin = 11;
 RightEdgeMargin = 95;
 // - Margin between top of PCB and box top.
 TopPCBMargin = 84;
-// - Side screw hole diameter
-ScrewHole = 2.2606;
+
 
 
 /* [PCB_Feet] */
@@ -304,14 +316,36 @@ module leg() {
 /*  Legs: legs module
 
     This module produces the wall fixation box legs.
+    Legs are produced according to the parameters for XXLeg indicating top or bottom.
+
+    Arguments:
+        top: 0 for bottom shell legs. 1 for top shell legs. defaults to bottom.
 */
-module Legs() {
+module Legs(top=0) {
     color(Couleur1) {
-        translate([MountInset, 0, 0]) {
-            leg();
+        if (BLLeg == top) {
+            translate([MountInset, 0, 0]) {
+                leg();
+            }
         }
-        translate([Length - MountInset, 0, 0]) {
-            leg();
+        if (FLLeg == top) {
+            translate([Length - MountInset, 0, 0]) {
+                leg();
+            }
+        }
+        if (BRLeg == top) {
+            translate([MountInset, Width, 0]) {
+                rotate([0, 0, 180]) {
+                    leg();
+                }
+            }
+        }
+        if (FRLeg == top) {
+            translate([Length - MountInset, Width, 0]) {
+                rotate([0, 0, 180]) {
+                    leg();
+                }
+            }
         }
     }
 }
@@ -321,18 +355,40 @@ module Legs() {
 
     This module produces the holes necessary in the box fixation tabs and in the wall
     of the box for the corresponding tabs to affix to.
+    Holes are produced according to the parameters for XXLeg indicating top or bottom.
+
+    Arguments:
+        top: 0 for bottom shell holes. 1 for top shell holes. defaults to bottom.
 */
-module Holes() {
-    union() {
+module Holes(top=0) {
+    color(Couleur1) {
         $fn = 100;
-        translate([MountInset, Width + Thick, Height/2 - 2*ScrewHole]) {
-            rotate([90, 0, 0]) {
-                cylinder(Thick*3, d=ScrewHole);
+        if (BRLeg != top) {
+            translate([MountInset, Width + Thick, Height/2 - 2*ScrewHole]) {
+                rotate([90, 0, 0]) {
+                    cylinder(Thick*3, d=ScrewHole);
+                }
             }
         }
-        translate([Length - MountInset, Width + Thick, Height/2 - 2*ScrewHole]) {
-            rotate([90, 0, 0]) {
-                cylinder(Thick*3, d=ScrewHole);
+        if (FRLeg!= top) {
+            translate([Length - MountInset, Width + Thick, Height/2 - 2*ScrewHole]) {
+                rotate([90, 0, 0]) {
+                    cylinder(Thick*3, d=ScrewHole);
+                }
+            }
+        }
+        if (BLLeg!= top) {
+            translate([MountInset, -Thick, Height/2 - 2*ScrewHole]) {
+                rotate([270, 0, 0]) {
+                    cylinder(Thick*3, d=ScrewHole);
+                }
+            }
+        }
+        if (FLLeg != top) {
+            translate([Length - MountInset, -Thick, Height/2 - 2*ScrewHole]) {
+                rotate([270, 0, 0]) {
+                    cylinder(Thick*3, d=ScrewHole);
+                }
             }
         }
     }
@@ -406,14 +462,14 @@ module Feet() {
     Model is rotated and translated to the appropriate position.
 */
 module TopShell() {
-    translate([0, Width, Height + 0.2]) {
-        rotate([180, 0, 0]) {
+    translate([0, 0, Height + 0.2]) {
+        mirror([0, 0, 1]) {
             difference() {
                 union() {
                     Coque();
-                    Legs();
+                    Legs(top=1);
                 }
-                Holes();
+                Holes(top=1);
             }
         }
     }