This is a 3D model based on Matsumoto, the time traveling AI from Vivy: Fluorite Eye's Song.
Note that this is my interpretation of the robot; This design should be considered as fan made.
The ZIP file contains everything organized in various folders.
STL and OBJ files are included.
For the 3D printing Process you can use the process you like most. The model is scaled to RealLife size if you want to print it for a cosplay. If you want it scaled down you can do so with your slicing software.