I have not built one of these bad boys but I've heard they are well worth the time spent. And it's fueled with a byproduct of all wood shops (sawdust) and just as good uses no electricity :gar-Bi
Link ---> http://www.ncwoodworker.net/forums/downloads.php?do=file&id=317
Link ---> http://www.ncwoodworker.net/forums/downloads.php?do=file&id=317