[Bruceb]

All this talk of weather to pick up from the floor or the feeder slots. I dont realy think it is that hard to pick up from the floor and I have devised a realy simple disk flipper that is integral to the conveyor and needs NO SENSOR. So, why not do both. If you are picking up from the floor then you have some kind of hopper. If you have a hopper then it should not be that difficult to collect from the feeder tubes. For that matter, if you can pick up from the floor you can pick up from the floor right in front of the feeder station. Put a sign on the bot for the human player " feed to floor".
I'll post a vid later showing the flipper.
Bruce