diff --git a/README b/README
index c1423d6..b8bc353 100644
--- a/README
+++ b/README
@@ -3,7 +3,8 @@ This is a personal project to generate a 2D maze using in depth path generation.
 
 Download the 'latest' laby.zip containing java jar from my blog http://blog.artisanlogiciel.net/public/tech/laby.zip
 
-this can generate a stl file, overall goal was to print it with a 3D printer, i didn't test it yet ( even if i actualy have a 3D printer ).
+this can generate a stl file, overall goal was to print it with a 3D printer.
+After years i finaly printed one maze, find it at https://www.thingiverse.com/thing:2814655
 
 This is the very first usable part.
 It was developped under debian 7/8 but since it is java based it might be very easily recompiled or even just copied on other platform.
diff --git a/build.xml b/build.xml
index 1ee3026..8242244 100644
--- a/build.xml
+++ b/build.xml
@@ -1,4 +1,4 @@
-<project name="artloglaby" default="dist" basedir="/home/plhardy/artisanlogiciel/code/laby_github">
+<project name="artloglaby" default="dist" basedir="/home/plhardy/artisanlogiciel/code/laby">
     <description>
         simple example build file
     </description>
diff --git a/java/Makefile b/java/Makefile
index 90904b5..1b58e23 100644
--- a/java/Makefile
+++ b/java/Makefile
@@ -11,8 +11,8 @@ $(OUT):
 #	mkdir -p $(OUT)
 
 clean:
-	@find $(PACKAGE_DIR) -name "*.class" -type f -print0|xargs -0 rm 2>/dev/null && echo "cleaned classes in source"
-	@find $(OUT) -name "*.class" -type f -print0|xargs -0 rm 2>/dev/null || echo "nothing to clean"
+	@find $(PACKAGE_DIR) -name "*.class" -type f -print0|xargs -0 --no-run-if-empty rm 2>/dev/null
+	@find $(OUT) -name "*.class" -type f -print0|xargs -0 --no-run-if-empty rm 2>/dev/null
 
 test:
 	echo "$(pwd)/$(PACKAGE_DIR)"
diff --git a/java/org/artisanlogiciel/games/LabyModel.java b/java/org/artisanlogiciel/games/LabyModel.java
index 9e2da37..aec3358 100644
--- a/java/org/artisanlogiciel/games/LabyModel.java
+++ b/java/org/artisanlogiciel/games/LabyModel.java
@@ -87,27 +87,6 @@ public class LabyModel implements WallsProvider
     MazeCreationListener listener = null;
 
 
-    /**
-TODO
-    private static MyLinkedList<P>
-    {
-	MyLinkedList<P> next;
-	P content
-
-	MyLinkedList<P>( P object)
-	{
-	    content=object;
-	    next=null;
-	}
-		
-	MyLinkedList<P> addLast(P object)
-	{
-	    next = new MyLinkedList(object);
-	    return next;
-	}
-    }
-    */
-
     public LabyModel(int width, int height, int maxdepth, Random random)
     {
         this.width = width;
@@ -525,13 +504,16 @@ TODO
         }
     }
 
+    /**
+       generate a maze with an entry set at (x,y) 
+    **/
     public void generateWithEntry(int x, int y)
     {
 
         openList.add(new Position(x, y));
         while (!openList.isEmpty())
         {
-            step(0); // fixme depth not set
+            step();
 
             synchronized (coherentLock)
             {
@@ -834,10 +816,19 @@ TODO
         return backpath;
     }
 
+    private final void closePosition(int x, int y)
+    {
+	t[x][y] &= ~OPEN;
+	t[x][y] |= CLOSED;
+    }
+
     /**
-     * @returns wheter process closed current node.
+     * One step in Maze generation process
+     * get last element in open list and explore one random direction with it.
+     *
+     * @returns whether process closed current node.
      **/
-    public boolean step(int depth)
+    public boolean step()
     {
         boolean complete = false;
         Position current = null;
@@ -977,11 +968,12 @@ TODO
                     }
                 }
                 complete = true;
-                t[x][y] &= ~OPEN;
-                t[x][y] |= CLOSED;
-                if (current.getDepth() > deepest)
+		closePosition(x,y);
+
+		final int currentdepth = current.getDepth();
+                if ( currentdepth > deepest)
                 {
-                    deepest = depth;
+                    deepest = currentdepth;
                     deepestEnd = current;
                 }
             } // current != null;