How to set Password on MANU 3D Printer

To set a password, follow these steps:

  1. Add the following command to the configuration file, replacing “password” with your desired password:

To enable the password:

M551 P"password"               ;Enable if need to use machine password (FTP), please replace password with your password you want to set.
  1. To disable the password, simply add a semicolon [;] at the beginning of the line to comment it out:

; symbol will command line is disabled.

;M551 P"password"               ;Enable if need to use machine password (FTP), please replace password with your password you want to set.

:warning: Note

Please be aware that all G-codes and system files (such as config.g) are stored on the SD card, which can be accessed through the electronics board located behind the printer. If someone removes the back panel, they can gain access to the electronics and SD card.

Here is a screenshot demonstrating how to add the command to set the password:

Here is an instruction on how to go config.g -

Screenshot from the previous post - Making fans quiet when machine is idle & Heater is < 40°C


The SD card contains the following directories and folders. If the SD card is removed from the printer, the printer will not function.

Here is the folder structure required to operate the printer.

Screenshot 2023-06-22 at 14.04.00

In the event that the SD card is not present in the printer, during startup, the printer will search for these files. If it fails to locate them, the printer will be unable to operate.