diff --git a/img/gnal_100ft_v2_spacer.png b/img/gnal_100ft_v2_spacer.png
index 9a6a027..fae9974 100644
Binary files a/img/gnal_100ft_v2_spacer.png and b/img/gnal_100ft_v2_spacer.png differ
diff --git a/img/gnal_100ft_v2_top.png b/img/gnal_100ft_v2_top.png
index f1bfd54..9355785 100644
Binary files a/img/gnal_100ft_v2_top.png and b/img/gnal_100ft_v2_top.png differ
diff --git a/img/gnal_50ft_v2_spacer.png b/img/gnal_50ft_v2_spacer.png
index 9a6a027..fae9974 100644
Binary files a/img/gnal_50ft_v2_spacer.png and b/img/gnal_50ft_v2_spacer.png differ
diff --git a/img/gnal_50ft_v2_top.png b/img/gnal_50ft_v2_top.png
index 0e6fcb0..3d44013 100644
Binary files a/img/gnal_50ft_v2_top.png and b/img/gnal_50ft_v2_top.png differ
diff --git a/scripts/binary_convert.sh b/scripts/binary_convert.sh
index f92f413..8897682 100644
--- a/scripts/binary_convert.sh
+++ b/scripts/binary_convert.sh
@@ -16,7 +16,7 @@ do
 		FILES=./stl/${SIZE}_${VERSION}/*.stl
 		for stl in $FILES
 		do
-			fileSize=`wc -c < "$stl"`
+			fileSize=`bash ./scripts/size.sh "$stl"`
 			fileSize=`echo $newSize | xargs`
 
 			firstline=`head -n 1 "$stl"`
@@ -24,7 +24,7 @@ do
 				echo "Converting $stl to binary..."
 				#convert from ascii to binary
 				admesh -c -b "$stl" "$stl"
-				newSize=`wc -c < "$stl"`
+				newSize=`bash ./scripts/size.sh "$stl"`
 				newSize=`echo $newSize | xargs`
 				percent=`echo "scale=1;($newSize/$fileSize)*100" | bc`
 				#fileSize="${newSize}"
diff --git a/scripts/size.sh b/scripts/size.sh
new file mode 100644
index 0000000..39bf1a0
--- /dev/null
+++ b/scripts/size.sh
@@ -0,0 +1,27 @@
+#!/bin/bash
+
+FILE="$1"
+
+if [ "$FILE" = "" ]; then
+	echo -1
+	exit 1
+fi
+
+#wc -c < "$FILE"
+#exit 0
+
+if [ "$(uname)" == "Darwin" ]; then
+    # Mac OS X platform 
+    stat -f%z "${FILE}"
+elif [ "$(expr substr $(uname -s) 1 5)" == "Linux" ]; then
+    # GNU/Linux platform
+    stat -c%s "${FILE}"
+elif [ "$(expr substr $(uname -s) 1 10)" == "MINGW32_NT" ]; then
+    # 32 bits Windows NT platform
+    echo -1
+	exit 2
+elif [ "$(expr substr $(uname -s) 1 10)" == "MINGW64_NT" ]; then
+    # 64 bits Windows NT platform
+    echo -1
+	exit 3
+fi
\ No newline at end of file