The Design and Implementation of a Color Gradient 3D Printer with Multiple PLA Fusion

In order to reach the goal of colorful 3D printing, a color gradient 3D printer is proposed in this paper, Users could choose the printed mode such as assigned specified color, random color, random of layer gradually and specified of layer gradually before creating objects by a FDM 3D printer. With the use of mobile device to send color setting data to the proposed devices which is designed for color change mechanism through Wi-Fie With receiving color and model information, the 3D printer's step motors could squeeze the assigned color to mix therefore, the proposed 3D printer could create the object with the color setting by users. In terms of color mixture, we specially designed a nozzle with three inputs and one output to make desired color by mixing CMY in the nozzle. The CMY filament mixed proportion is assigned from the calculated data output by the MCU. By using this calculated data to control step motor's action, and create the color chosen by the user in the app. Then we can print models with multiple colors that the users desire.