The first step is to make a virtual 3D design with 3D modelling or get a 3D file through 3D Scanning by reverse engineering of a desired object, in medical it is obtained through the CT or MRI file of the patient. Dental through Intraoral scanner, Prosthetics through hand held scanners etc. And similarly for engineering or machine components it is either by getting a 3D Design or a scanned image of the part to be converted to an STL file directing it to the 3D printer to create the object layer by layer. It is a process of making 3D objects using plastic, metal and composite materials. There is a great deal of R & D going into the various materials to ensure it can be used for various requirements. For medical sector the material is biocompatible and approved by CDSCO, FDA and other regulatory agency. Similarly for Aerospace and Defence the parts are certified by CEMILAC, DGQA and DGCA. 3D Printing serves as a boon for making customized solutions in Aerospace, defense, Automotive, Energy, dentistry, Medical Devices, orthodontics, etc. It is estimated that the global 3D printer and the service market for engineering and medical will grow at a CAGR of 29.8% during the period 2024
2028.

3D Visualisation consist of technologies like Augmented reality , Virtual reality (VR), Mixed reality ( MR) including Extended reality ( XR) and Digital twin to create Digital
Inventory which can be used for selective 3D Printing of parts.
3D Visualisation is a revolution in the medical and health care field. Innovation and technology have increased the scope of several medical centers and hospitals. The
prime ways that reflect the extended reality are augmented, virtual, and mixed reality and these are helpful in the betterment of healthcare centers.  This reality enables surgeons to look beyond the human body and check the organs
thoroughly. The technology allows them to reach even the smallest part of the body
and study that via X-rays and 3D structures. It is also helpful in teaching other students and increasing their retention power. Many AI start-ups help in visualizing
and diagnosing the human organs. Thus the extended reality has been an immense support in the medical field and also empower the young generation to provide the
betterment in everyone’s life.  3D Visualisation is also a great tool for Engineering & Industrial manufacturing on similar lines for better planning and execution.