How to get the informations about the second extruder?

[matheusgcoppi 0]

I would like to know how to get the informations about the second extruder e.g: material, nozzle. I know that in definitions there is a file called fdmprinter.def.json that has the variables to use like machine_name, material_type, but has no variable called material_type2 or something like that, is there a way to created my own variables to get this kind informations? please.

[Slashee_the_Cow 409]

Extruders have their own definition files (they're in the extruders folder instead of the definitions folder). Although for whatever reason the base definition file (fdmextruder.def.json) is in the definitions folder with the printer definitions.

 

I've never had a multi-extruder printer so I can't really help, but you might be able to glean some information if you look at the definition files for the different extruders on a multi-extruder printer.

[matheusgcoppi 0]

Yeah, in fdmextruder.def.json there are variables that We can use in other files to access, I use it, but unfortunately does not has variables to get the second one, maybe should I create my own variables? idk yet, thank you to tell me what you know, appreciate it. I figure out that ultimaker get the second extruder seeing their gcode, I'm reading their files to understand, if you wanna see, this is a piece of gcode generated by an ultimaker S3

 

;EXTRUDER_TRAIN.0.INITIAL_TEMPERATURE:200
;EXTRUDER_TRAIN.0.MATERIAL.VOLUME_USED:2127
;EXTRUDER_TRAIN.0.MATERIAL.GUID:44a029e6-e31b-4c9e-a12f-9282e29a92ff
;EXTRUDER_TRAIN.0.NOZZLE.DIAMETER:0.8
;EXTRUDER_TRAIN.0.NOZZLE.NAME:BB 0.8

 

I think they get the informations of the second extruder calling EXTRUDER_TRAIN_0/1 and the variable, but I still did not find how to do it and I added the second extruder in files but I cannot access like that

[ahoeben 1,981]

I guess you are talking about the replacement patterns in the start- and end-gcode snippets?

 

You can specify the extruder like this:

{line_width, 0} # linewidth of 1st extruder
{line_width, 1} # linewidth of 2nd extruder

{line_width, infill_extruder_nr} # linewidth of whichever extruder is used for the infill

 

[matheusgcoppi 0]

Thank you!! I was searching for it for many days, you save me. 🤩 🤩