The Card Cataloger is a device that was concieved in order to establish an organizational technique for large collections of trading cards. In particular, the Game Club at Franklin W. Olin College of Engineering possesses an overwhelming amount of Magic: The Gathering Cards, and the collection was in a state of disarray at the initiation of this project. The cards in question can be sorted based upon their mana color [white:plains, green:forest, blue:island, red;mountain, black:swamp], and furthermore, all distinguishing information can be obtained from knowing the title of the card in question -- that is, all card titles are unique. Click here to see a video of the prototype in action. The Olin course Principles of Engineering (PoE), calls upon teams of students to build mechatronic systems with heavy hardware and software components. Thus, we devised the idea of building a 'card-sorting' machine that could receive an input stack of trading cards, pick them up one by one, pass them over an imaging bed, and redeposit them into an output stack. The webcam positioned below the imaging bed captures the title of the card within its video stream, and software running on a companion laptop translates the image into readable text via optical character recognition (OCR). The title can then be compared to a data base of card names, and the relevant information about the card can be obtained and stored along with the position of the card within the output stack. Finally, GUI written in Python allows a user to browse previously sorted stacks to locate a desired card. Click on the navigational links above to explore the different components of our prototype in more detail. Right click on any images and select 'View Image' in order to see a full size screenshot.