Klipper: [Feature Request] Conditional macros

[tameike000]

Hello.
I am looking for a way to bring some logic into my macro's:
Example:
print_start filament=PLA

[gcode_macro print_start]
if filament == PLA
    macro_PLA
if filament == ABS
    macro_ABS
else
    macro_youaredoomed

Maybe I am not the only one and this could be considered as a future feature.

Thanks.
M

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[Hywelmartin]

you know that you can have parameters in macros, that can be changed when you send the command.

If I want the toolhead to park in an other spot than the normal one I send

PARK_MACRO Y=85 Z=50

[gcode_macro PARK_MACRO]
default_parameter_X: 0
default_parameter_Y: -85
default_parameter_Z: 30
gcode:
M117 PARKING..
G91
G1 E-3.14 F1500
G1 Z{Z}
G90
G1 X{X} Y{Y} F3000

[tameike000]

@Hywelmartin
Thanks so much for that example! I think I did not fully understand the potential of the existing implemention yet.

[mcmatrix]

Actually, I'll tell you a little secret.
You can use the Jinja2 templating engine in gcode_macros gcode.
The latest code in the master branch has it built in.
http://jinja.pocoo.org/docs/2.10/templates/

[gcode_macro print_start]
default_parameter_FILAMENT: PLA
gcode:
    {% if FILAMENT == 'PLA' %}
        macro_PLA
    {% elif FILAMENT == 'ABS' %}
        macro_ABS
    {% else %}
        macro_youaredoomed
    {% endif %}

This example is not tested in working klipper.
Edited: default parameter has to be in capital letters

[tameike000]

@mcmatrix if that works I'll send 1001 brownie points over.
Thanks for the hint. I will dig into that.

[KevinOConnor]

I'm going to close this ticket as it looks like the conversation has concluded. As indicated, conditional macros are supported (though documentation is still in progress).

-Kevin

[SrGeek]

@mcmatrix will the following work?
[gcode_macro park]
default_parameter_tool:0
gcode:
{% if TOOL== 0 %}
G1 X-12 F6000
{% else %}
G1 X475 F6000
{% endif %}

or do I need elif in order to make it work?