Please summarize how to create printable models on my 3D printer?

Context: 3D printable models may be created with a computer-aided design package, via a 3D scanner, or by a plain digital camera and photogrammetry software. 3D printed models created with CAD result in relatively fewer errors than other methods. Errors in 3D printable models can be identified and corrected before printing. The manual modeling process of preparing geometric data for 3D computer graphics is similar to plastic arts such as sculpting. 3D scanning is a process of collecting digital data on the shape and appearance of a real object, creating a digital model based on it.

Answer: A 3D printable model can be created by either 3D scanning a physical object or a manual modeling process via computer-aided design (CAD).