Feature Request: Additional filename placeholders

[therealzanfar]

Version

Version 2.2.0+win64

Operating system type + version

Windows 10 Pro x64, ver. 2004, build 19041.388, feature pack 120.2202.130.0

3D printer brand / version + firmware version (if known)

Prusa i3 MK3s stock

Feature Request

Additional filename placeholders for use in Print Settings -> Output Options -> Output filename format

• Parent Folder

  My workflow commonly involves multiple STLs per project, all saved in the same folder. These parts will commonly have similar or identical names as parts in other project--for example, multiple projects may include a similar, but not identical, "axle.stl". While the filename is sufficient to identify the part in a folder hierarchy, when exported, PrusaSlicer defaults to naming the GCode file "axle.gcode" which gets lost in the printers single-level storage.

  Please add a {parent_folder} placeholder that matches the name of the immediate ancestor folder of the primary object file.

• Object Count

  My workflow commonly involves generating multiple GCode files from a single STL object usually in different quantities. That is, I might have a GCode file with 1, 4, and 16 duplicate objects on the build plate. Which file gets printed depends on the quantity of parts needed--sometimes I'm doing a production run and I use the full-plate x16 version, while sometimes I just need a quick replacement or a prototype and only want a single object.

  Please add a {object_count} placeholder that is the count of objects on the build plate.

Together, this means my ideal Output filename format would be something like:

{parent_folder}_{input_filename_base}x{object_count}_{layer_height}mm_{filament_type[0]}_{printer_model}_{print_time}.gcode

[josedpedroso]

I also have some new placeholder variables I'd like to request:

• output_filename: the idea would be to build print progress messages with M117 and conditional g-code, to show different stats on odd or even layers, for instance, but always maintaining the real filename visible.

• layer_min_volumetric_rate, layer_max_volumetric_rate, layer_avg_volumetric_rate: I was thinking about making some sort of automatic temperature adjustment script on layer changes, like Marlin's autotemp feature, but steadier.

[sslupsky]

I like the suggestion of the object count placeholder. This would be very useful.

[bubnikv]

{num_objects} and {num_instances} implemented with 1ddd060

New placeholder parser values for output file name template;
{num_objects} - number of printable objects on the plater.
{num_instances} - number of printable instances on the plater, adding up
  	all printable instances of all objects.

It will be released with PrusaSlicer 2.4.0-beta2.

[sslupsky]

@bubnikv Thank you!

[carlosjln]

Well this is still hanging, but I'd like to have the stl file name not the project filename. I save the project with specific print settings and just swap the files but I'd like to export with the sliced STL filename.