When I import the stl into Cura it scales to x- 158.0393 y - 180.9578 z - 5.0008 Seems a bit large -what should the exact dimensions of the printed frame be? The preview also shows crosshatching and the print time is 1 hour 17 minutes using the settings in the instructions for a 0.4 mm nozzle. I am printing on a Creality Ender 5 Plus. This is my first print on this machine.