A plugin to update the built-in progress bar on your printer's LCD.

Most 3D printers offer a progress bar or percentage indicator on their display. However, by default, this percentage is only updated when printing from SD card. When printing directly through OctoPrint, the progress bar remains empty. This small plugin remedies the situation by injecting M73 (set build percentage) commands into the print stream.

Note: Not all printers support this feature. In order for this to work, your firmware needs to understand the M73 command. See below for instructions for Marlin.

Marlin Firmware

You will need a recent version of Marlin, 1.1.7 or later. The M73 feature is not enabled by default. You can enable it by uncommenting line 576 in Configuration_adv.h:

// Add an 'M73' G-code to set the current percentage
#define LCD_SET_PROGRESS_MANUALLY

Pictures

Working LCD progress bar while printing from OctoPrint!