diff --git a/Mechanical/OpenSCAD/Enclosure.scad b/Mechanical/OpenSCAD/Enclosure.scad
index 4959e6f..4f5b7da 100644
--- a/Mechanical/OpenSCAD/Enclosure.scad
+++ b/Mechanical/OpenSCAD/Enclosure.scad
@@ -104,9 +104,7 @@ module rail(make_printable) {
         
         // The pocket that the latch bar drops into, including a 45 degree cut for printability
         translate([0, latch_wall, -latch_h]) cube([latch_d, latch_l, latch_h]);
-        if (make_printable) {
-            translate([latch_d, latch_wall+latch_l, -latch_h]) rotate([0, 0, -180+45]) translate([0, -latch_l, 0]) cube([latch_d*2, latch_l, latch_h]);
-        }
+        translate([latch_d, latch_wall+latch_l, -latch_h]) rotate([0, 0, -180+45]) translate([0, -latch_l, 0]) cube([latch_d*2, latch_l, latch_h]);
     }
 }
 
@@ -174,7 +172,7 @@ module expansion_card_lid() {
             difference() {
                 translate([-side_wall*2-gap, -base_ext[1]+side_wall+gap, base_ext[2]-side_wall]) cube([base_ext[0]-side_wall*2-gap*2, base_ext[1]-side_wall*2-gap*2, side_wall]);
                 translate([-0.5,-16.4,8]) led_cylinder(); // hollow for D2 LED cylinder
-                translate([30.55,-16.4,8]) led_cylinder(); // hollow for D3 LED cylinder
+                translate([30.60,-16.4,8]) led_cylinder(); // hollow for D3 LED cylinder
             }
             // joins them together
             translate([side_wall+gap, -side_wall, base[2]-lower_lid_z]) cube([base[0]-side_wall*2-gap*2, side_wall, base_ext[2]-base[2]+gap*2+0.1]);
@@ -237,6 +235,8 @@ module expansion_card_base(open_end, make_printable, pcb_mount="boss") {
             translate([side_wall, inner[1]+side_wall-notch_l, side_wall]) cube([notch, notch_l, notch_h]);
             translate([inner[0]+side_wall, inner[1]+side_wall-notch_l, side_wall+notch_h/2]) rotate([0, 0, 180]) rotate([0, 90, 0]);
             translate([inner[0]+side_wall-notch, inner[1]+side_wall-notch_l, side_wall]) cube([notch, notch_l, notch_h]);
+            translate([side_wall, inner[1]+side_wall-notch_l, side_wall+notch_h/2]) rotate([0, 0, -90]) rotate([0, 90, 0]) rib(notch_h, notch);
+            translate([inner[0]+side_wall, inner[1]+side_wall-notch_l, side_wall+notch_h/2]) rotate([0, 0, 180]) rotate([0, 90, 0]) rib(notch_h, notch);
 
         }
         // cutout for sim card access
@@ -256,7 +256,7 @@ module expansion_card_base(open_end, make_printable, pcb_mount="boss") {
         translate([0, base[1]-ledge_cut_d, 0]) cube([base[0], ledge_cut_d, ledge_cut]);
 
         // hollow bottom to provide room for back of board
-        translate([side_wall,-notch_l,-hollow_bottom_z+1.5]) cube([base[0]-side_wall*2, base[1]-side_wall, hollow_bottom_z]);
+        //translate([side_wall,-notch_l,-hollow_bottom_z+1.5]) cube([base[0]-side_wall*2, base[1]-side_wall, hollow_bottom_z]);
     }
 
     difference() {
@@ -292,6 +292,13 @@ module expansion_card_base(open_end, make_printable, pcb_mount="boss") {
     }
 }
 
+// A simple 45 degree rib to improve printability
+module rib(thickness, height) {
+    translate([-thickness/2, 0, 0]) difference() {
+        cube([thickness, height, height]);
+        translate([-thickness/2, height, 0]) rotate([45, 0, 0]) cube([thickness*2, height*2, height*2]);
+    }
+}
 
 module expansion_card_ext(make_printable, pcb_mount="boss_insert") {
     // Hollowing of the inside
@@ -346,7 +353,7 @@ module led_cylinder(stopper) {
     }
 }
 
-translate([base_ext[0]-6.45-side_wall*2, -base[1]-base_ext[1]+side_wall*2+0.8, pcb_h+0.78+led_h]) led_cylinder(true); // D2 LED column
+translate([base_ext[0]-6.4-side_wall*2, -base[1]-base_ext[1]+side_wall*2+0.8, pcb_h+0.78+led_h]) led_cylinder(true); // D2 LED column
 
 translate([-0.5, -base[1]-base_ext[1]+side_wall*2+0.8, pcb_h+0.78+led_h]) led_cylinder(true); // D3 LED column