3D printing services are an online service that helps you create three-dimensional objects from a digital file. These services use additive manufacturing technology to create objects by adding layers of material one at a time. This process is also known as rapid prototyping or additive manufacturing.
There are a few different types of 3d printing services online. The most popular type is probably Shapeways, which is a service that lets you upload 3d files and then prints them out for you in a variety of materials. There are also a few other companies, such as Sculpteo and i.materialise, which offer similar services.
Overall, using a 3D printing service can be a great way to get high-quality prints of your 3D models. However, it is important to do your research and choose a reputable service that offers fair prices and turnaround times.