This model is used to calibrate any 3d printer with a print bed of at least 150mm by 150mm.

Here is a link to a YouTube video explaining how to use this model:

https://youtu.be/5GymGa_EYVg

The model was specifically designed for the Ender 5 but should be excellent for any of the Creality Ender models.

Since Creality 3d printers tend to experience dips in the center of the print bed this model includes both an outer and an inner calibration square.

I printed this calibration model in HatchBox PLA at a nozzle temperature of 210c with the bed heater set to 68c.