Summary A simple jig that lets you install a new mirror on your scanner perfectly centered and flat. This will probably work for most of the 6800 clone scanners out there as well. I made 6.0 and 6.1mm wide mirror slots since that fits the mirrors I have. I can make different widths if needed. Print Settings Printer Brand: Printrbot Printer: Printrbot Plus Rafts: No Supports: No Resolution: 0.3 Infill: 15% Notes: I had to design this with the scanner and mirror slot slightly oversize to compensate for my printer. You may need to scale it up or down a little bit to get a perfect fit on your printer.