<p>The tray dispenser was created for two purpose: to stop foreign object damage, and to provide accurate delivary to customer. I suggested using a cylinder delivary device that used a weighted spring mechanism, opening and closing depending on pressure or lack of pressure caused by drink on tray,. However, we discarded the idea and focused on this simple tray delivary because it cut costs and lowered risk of malfunction. The scanner was also developed by the group, but originally suggested when I expressed a need to have a POS system that recognizes the same user from entrance to the bar, to reduce misuse and underage consumption of alcohol. By having the card and user matched at the door, by our security guards, only the same user could connect to the account once inside. Thumb recognition would be paired to the ID, and responsibility preventing minors is transferred from bar to costumer.</p> - Pictures