Name of work: Design description of "to be no. 1" series double-mouth goo machine: upgrade the old goo machine and provide double printing ports, which can meet various printing requirements at the same time: 1) can print a large amount of content at the same time to save time; 2) Different types of printing paper can be placed at the same time to save the trouble of paper change; 3) Transparent design on the side is convenient to observe the amount of printing paper. Design concept: In order to meet the diversified needs of users, under the condition of less changes to the original coo-goo machine, a two-port printing coo-goo machine is designed, which not only improves the use defects of the existing coo-goo machine, but also has new functions to give users a better use experience. Source of inspiration: Get rid of the existing square-based goo machine shape, and use traditional scrolls as the prototype to add scrolls to learning tools such as goo machines, making users feel happy and comfortable.