3D-printing accessories are used with 3D printers to improve speed and efficiency during printing processes. Build plates (also called build platforms) provide a flat surface that 3D-printed objects will stick to as the printer builds them layer by layer. Additional plates can be used to replace the original plate that came with a printer or to provide multiple platforms for printing more than one object. Build tape and build sheets are applied to build plates to allow 3D-printed objects on the plate to be removed without leaving any residue behind. They can be used multiple times.