The Duet Web Control is the web interface used by RepRapFirmware. The website files need to be placed on the SD card.

The SD card from the factory should contain a somewhat recent version of the DWC files in the /www folder.

Because we will be upgrading the firmware as part of this guide, we want to ensure that the version of the DWC files on the SD card matches our firmware version.

Download the DuetWebControl-1.22.6.zip file from here: https://github.com/dc42/RepRapFirmware/r...

Extract the zip file into /www folder on the SD card and replace the existing files.