Documentation is an integral part of any 3D printing project, as it allows you to record and review your process and results, as well as share your knowledge and experience with others. You should document your 3D printing project from start to finish, covering the design process, slicing parameters, printing outcomes, post-processing results, and testing results. For example, when documenting your design process, you should include the inspiration, sketches, tools, iterations, and final 3D model. When documenting your slicing parameters, you should include the layer height, infill, speed, and temperature. When documenting your printing outcomes, you should include the print time, material usage, quality, and defects. When documenting your post-processing results, you should include the appearance, strength, and functionality. Finally when documenting your testing results you should include the performance, durability and feedback.