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Tuned PrusaSlicer configuration files that I, the speed demon of the industry, use for faster 3D printing.
19m
1× print file
0.32 mm
0.80 mm
13.00 g
75
1089
12
5579
updated January 18, 2025

Description

PDF

These print profiles (or “presets” as the kids are now calling them) make for faster prints, compared to Josef Průša's profiles of similar Z-axis resolution. They can often produce fantastic aesthetics despite their speed, but their focus isn't on intricate details of tiny figurines. Their goal is simply to complete a print quickly without introducing structural flaws.

I print smokin'-fast through a combination of moderately high linear speed, exceptionally wide extrusions, and combined infill layers. I stick to none of these approaches, however, where experience proves them impractical. For instance, I print overhangs rather slowly, I severely restrict perimeter accelerations, and I use normal extrusion widths when printing directly over non-solid infill. But I maintain the highest possible volumetric flow rate whenever it's not quite insane to do so. In addition, I use reliable but speed-optimized approaches for infill and support.

In these print profiles, the settings are tweaked all around to give my favorite smokin'-fast but not-quite-insane defaults. I provide profiles for nozzle sizes from 0.4 to 1.0 mm. I print mostly with a Prusa™ Mini+, but these profiles are not printer-specific. They're meant to work with just about any FFF-style printer.

In addition to the “dang fast” general-purpose profiles, good “spiral” profiles are provided as well -- for fast, sturdy, vase-mode prints.

Instructions

Put the .ini files in the directory where you keep your print profiles. (There's also a universal cross-platform way, through PrusaSlicer's menus: File->Import->Import Config…)

  • In Linux: ~/.config/PrusaSlicer/print
  • In Windows: C:\Users\[name]\AppData\Roaming\PrusaSlicer\print
  • In MacOS: /Users/[name]/Library/Application Support/PrusaSlicer/print

Of the several print profiles in this series, the coarser print profiles tend to be the fastest. A 3dbenchy tugboat is included as a benchmark test.

Troubleshooting

If you happen to experience extruder slippage, which causes a clicking sound as your printer tries to push plastic through the nozzle faster than it can melt the plastic, then try any of the following remedies:

  • On your printer, tighten the extruder's tension screw.
  • In your slicer software, reduce the filament's maximum volumetric flow rate.
  • In your printer's menu, reduce the speed multiplier.

If your prints come out slower than you expect, then check your filament profile. It may impose a filament-specific max volumetric speed.

For a filament that works especially well at high speed, try PolySonic™ PLA and my PolySonic™ filament profiles.

Ludicrous Speed

These presets assume typical hardware, including a mediocre cooling fan. If you’ve got something spectacular, by all means experiment with exceeding the limits set here.

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