klipper-gcode-loader

virtual_sdcard alternative providing ability to pause and cancel print during macro execution, run macros as prints and reload macros without restart

Installation

cd ~
git clone https://github.com/vertexbz/klipper-gcode-loader.git
cd ~/klipper/klippy/extras/
ln -s ~/klipper-gcode-loader/src gcode_loader

Moonraker

To add the extension to the update manager you can use following config

[update_manager klipper_gcode_loader]
type: git_repo
path: ~/klipper-gcode-loader
origin: https://github.com/vertexbz/klipper-gcode-loader.git
primary_branch: master
is_system_service: False

Klipper Configuration

To have gcode_loader working you need to define it before virtual_sdcard. It is important to load gcode_loader so it can take virtual_sdcards place, and to keep virtual_sdcard to satisfy moonraker.

[gcode_loader]

[virtual_sdcard]
path: /home/printer/gcode

Additional configuration options

[gcode_loader]
# A comma separated list of macros to be executed without interruption
uninterrupted: T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11

G-Code commands

MACRO_RELOAD

G-Code command MACRO_RELOAD [VARIABLES=1] [NAME=<macro name>] re-reads configuration files again and reloads macros. By default, it also adds new variables, to disable this behavior add VARIABLES=0 parameter, or to replace current macro variables with those from file use VARIABLES=2. You can also restrict reload by macro/template name using NAME=... parameter.

PRINT_FROM_MACRO

With PRINT_FROM_MACRO MACRO_NAME PARAMS... you can run your custom macro as print, pause and cancel it.

[gcode_macro MAX_FLOW_CALIB]
gcode:
    {% if printer.gcode_loader is defined and not printer.gcode_loader.is_virtual %}
        PRINT_FROM_MACRO MAX_FLOW_CALIB {rawparams}
    {% else %}
        PRINT_START ...
        G-CODE...
        PRINT_END
    {% endif %}

TODO

• recursive call protection