Reasonably priced 3D printer kits became available in 2015 for the home hobbyist. At the time people were becoming aware there were kits. The big advantage was the Chinese 3D Printer Kits were much more affordable and the quality was pretty good. The down side to the Chinese 3D printers is the printers are knock-offs of some early designs from other parts of the world. Finding parts can be difficult or impossible. The difficulty increases substantially if the 3D printer is an older design. I have listed multiple sites where you can obtain parts and supplies.