For a "box blade in sand" idea, look at the photos in this post and several following
http://www.tractorbynet.com/forums/build-yourself/103611-box-blade-slober.html#post1177127
Bruce
	
		
			
		
		
	
				
			http://www.tractorbynet.com/forums/build-yourself/103611-box-blade-slober.html#post1177127
Bruce
 
 
		 
  
 
		 
 
		 
 
		 
 
		 
 
		