This is a simple file of a flat primative cube totaling of 4 layers on a 0.2 Nozzle. 

We use this file as a simple calibration file when we buy new bed plates with effects, This allows us to dial in a print profile for the bed and allow for the best and most durable finish on the print. 

We also use this as a bed adhesion test, It shows imperfections quite easily if part of the print is not sticking in certain areas of the bed.