Hi, There is a PBS wiki page on seed cleaning: http://pacificbulbsociety.org/pbswiki/index.php/… But not machine based. Making a machine would be interesting. -- David Pilling http://www.davidpilling.com/ _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/…