Talk:Sorting Machine/@comment-81.102.146.13-20121009162848/@comment-24.17.95.194-20121126034858

You shouldn't need a buffer on the second sorting machine, it will accept items straight from pneumatic tubes without a pulse. Check to see if the buffer is full. If it is, there's your problem (I've had issues where only one row of the buffer fills up, so that could also be the problem if it doesn't seem full.)