Small Business Ideas on 3D Printing refers to the various entrepreneurial opportunities that exist in the field of 3D printing, particularly for small business owners. There are several potential business models for 3D printing, including product design and manufacturing, prototyping services, and custom 3D printing. Product design and manufacturing businesses use 3D printing to create and sell finished products, such as jewelry, toys, and consumer goods. Prototyping services offer businesses the ability to quickly and easily create prototypes of their products for testing and evaluation. Custom 3D printing businesses allow customers to upload their own designs and have them printed to their specifications. In addition, there are opportunities in the fields of education, healthcare, and architecture, where 3D printing can be used to create models and prototypes for instructional purposes, or to create customized prosthetics, orthotics, and other medical devices. The goal of small business ideas on 3D printing is to take advantage of the rapid advancements in the field of 3D printing to create innovative and profitable businesses.