How to get duration and filament usage on CLI? - PrusaSlicer https://forum.prusa3d.com/forum/prusaslicer/how-to-get-duration-and-filament-usage-on-cli/ Prusa3D Forum Discussion Board en-US Thu, 14 May 2026 01:47:25 +0000 wpForo 60 RE: How to get duration and filament usage on CLI? https://forum.prusa3d.com/forum/prusaslicer/how-to-get-duration-and-filament-usage-on-cli/#post-785852 Sat, 14 Mar 2026 20:51:43 +0000 interesting, thanks for sharing. my python script now just calls prusa-slicer, then reads those comments. that's enough for me for now, I'll keep it in the back of my mind in case I need more gcode related things in my code tho.

]]> PrusaSlicer Nia https://forum.prusa3d.com/forum/prusaslicer/how-to-get-duration-and-filament-usage-on-cli/#post-785852 RE: https://forum.prusa3d.com/forum/prusaslicer/how-to-get-duration-and-filament-usage-on-cli/#post-785825 Sat, 14 Mar 2026 17:31:06 +0000 I also did this for my g-code library. There is a function called estimate_print which will return an object that encapsulates time, length and weight. It's in Python. If not comfortable with Python REPL I could be convinced to create shell script (or PowerShell for Windows)

pip install gcode-lib
import gcode_lib as gl

# Load and estimate

 # Works with both binary and ascii gcode
gf = gl.load("my_print.bgcode")

 # auto-detect filament type
est = gl.estimate_print(gf.lines)

print(f"Print time:      {est.time_hms} ({est.time_seconds:.0f}s)")
print(f"Filament length: {est.filament_length_m:.2f} m")
print(f"Filament weight: {est.filament_weight_g:.1f} g")

# Use a different filament type
est = gl.estimate_print(gf.lines, filament_type="PETG")

# Or specify density and diameter directly
est = gl.estimate_print(gf.lines, filament_density=1.27, filament_diameter=1.75)

 

 

 

]]> PrusaSlicer hyiger https://forum.prusa3d.com/forum/prusaslicer/how-to-get-duration-and-filament-usage-on-cli/#post-785825 RE: How to get duration and filament usage on CLI? https://forum.prusa3d.com/forum/prusaslicer/how-to-get-duration-and-filament-usage-on-cli/#post-785680 Fri, 13 Mar 2026 16:02:41 +0000 Great, thanks. I'll pull it out of the comments of the gcode file!

]]> PrusaSlicer Nia https://forum.prusa3d.com/forum/prusaslicer/how-to-get-duration-and-filament-usage-on-cli/#post-785680 https://forum.prusa3d.com/forum/prusaslicer/how-to-get-duration-and-filament-usage-on-cli/#post-785605 Fri, 13 Mar 2026 03:33:19 +0000 One workaround is to include it in the gcode file name with 

--output-filename-format

(you will need to use --help-fff if you don't see this in your -help output.)

Or, if you want to capture the info for a database the values are in every text format g-code file in the comment section at the end.  So you could pipe the output file through grep or use a custom post-processing script...

Cheerio,

]]> PrusaSlicer Diem https://forum.prusa3d.com/forum/prusaslicer/how-to-get-duration-and-filament-usage-on-cli/#post-785605 How to get duration and filament usage on CLI? https://forum.prusa3d.com/forum/prusaslicer/how-to-get-duration-and-filament-usage-on-cli/#post-785554 Thu, 12 Mar 2026 20:32:15 +0000 I'm trying to use the prusa-slicer cli interface to generate time and filament usage estimates for a lot of stl files in a big project of mine.

I can slice the stl files successfully, but I don't see any ways to get the resulting time and filament usage on stdout and didn't spot anything in the help output.

Any hints?

]]> PrusaSlicer Nia https://forum.prusa3d.com/forum/prusaslicer/how-to-get-duration-and-filament-usage-on-cli/#post-785554