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
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
// Add an 'M73' G-code to set the current percentage
The plugin should work as-is. Once enabled, the plugin will automatically inject
M73 commands in the printer’s serial stream. There are two options to fine-tune
the plugin’s behavior, available through the
M73 Progress tab in OctoPrint
Output time left: Sends the estimated time remaining using the R parameter. This is only supported by certain firmwares (e.g. Marlin 2.0 and Prusa firmware). This option is enabled by default; most firmwares will just ignore this extra parameter if not supported.
Use time estimate: By default, the plugin uses OctoPrint’s built-in progress estimate, which is based on the progress inside a G-code file. In some cases, a better progress estimate can be calculated from the time elapsed and the time remaining:
P = elapsed / (elapsed + remaining). This option is particularly useful for PrintTimeGenius users.