Up until now, 3D printing very large parts has been costly, slow, and problematic. Large format 3D printers, their software, maintenance, and consumables are all extremely expensive and the finish can still be rough requiring a lot of post-processing. One option can be to use more affordable small printers to print in smaller pieces and then carefully join them together, but its more time consuming and the part may not fit together properly. Either way, the process is slow and parts could fail during the print or worse, later in use.