In general, the parameter interface is password protected. The customer should keep the password properly and a non-administrator cannot change the password at will.
The machine's various technical parameters has been set up in the factory before delivery, generally it cannot be arbitrarily changed, and otherwise it easily lead to machine failure.
In case of that you must change parameters to produce other brushes that are with large hole distance, please be sure to first confirm the specific parameters with our technician, and then make changes.