Prusa Research
Every FilamentFeed story on Prusa Research — news, reviews, and analysis, newest first.
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Guides
Infill Patterns and Density: The Complete Guide to Stronger Prints
Gyroid, grid, honeycomb, lightning — every infill pattern makes different tradeoffs between strength, speed, material use, and surface quality. Here's exactly when to use each and how density changes the outcome.
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Materials
ABS Filament Complete Guide: Why It Is Hard and When to Use It
ABS remains relevant in 2026 for its heat resistance, impact toughness, and acetone smoothability — but it demands an enclosure, specific bed adhesion, and careful settings. This guide covers everything.
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Software
Bambu Lab Cloud Dependency: Privacy Concerns, LAN Mode, and Your Options
Bambu Lab printers connect to cloud servers by default, raising privacy and reliability questions for users. This guide explains what data is collected, how LAN-only mode works, and what alternatives exist.
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Business
How Bambu Lab Disrupted 3D Printing: Speed, Ecosystem, and Prusa's Response
Bambu Lab arrived in 2022 and changed 3D printing faster than any company since MakerBot. Here is the full story of how they did it, what it cost the market, and how Prusa Research responded.
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Guides
Best 3D Printer Upgrades for the Money: Hotends, Extruders, Probes, and More
Not every upgrade improves every printer. This guide covers the hotend, extruder, bed leveling, enclosure, and frame upgrades that deliver the best return on investment for common FDM machines in 2026.
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Business
Who Actually Makes Filament: The Supply Chain Behind Your Spools
The filament market is less diverse than it appears. A small number of polymer manufacturers supply most brands. This guide traces the supply chain from raw resin to finished spool and explains what quality differences actually matter.
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Guides
How to Dry Filament: Temperatures, Dryers, Ovens, and Long-Term Storage
Wet filament causes bubbling, stringing, and weak layer bonds. This guide covers drying temperatures for every common material, filament dryers vs kitchen ovens, and proper storage to prevent moisture uptake.
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Business
Open-Source vs Proprietary 3D Printers: The 2026 Trade-Off Guide
Voron and Prusa represent open-source printing; Bambu Lab and Ultimaker S-series represent the proprietary end. Both camps offer real advantages — this guide breaks down the honest trade-offs for 2026.
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Software
Orca Slicer Deep Dive: Calibration, Multi-Plate Printing, and How It Compares to Bambu Studio
Orca Slicer is the open-source slicer of choice for serious FDM users in 2026 — with built-in pressure advance calibration, flow rate testing, multi-plate workflows, and broader printer support than Bambu Studio.
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Printers
Prusa XL 5-Tool Review: Multi-Material Done the Hard Way
The Prusa XL brings a true toolchanger to the desktop — five independent hotends, a 360×360mm bed, and the reliability Prusa is known for. Here's whether the premium is worth it in 2026.
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Software
PrusaSlicer 3.x Beginner's Guide: From First Import to Perfect Supports
PrusaSlicer 3.x is one of the most capable free slicers available, but its depth can overwhelm newcomers. This beginner's guide walks through the interface, profiles, support generation, and paint-on supports.
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Materials
PVA and BVOH Water-Soluble Supports: The Complete FDM Guide
PVA and BVOH dissolve in water, enabling complex geometries impossible with breakaway supports. This guide covers how each material works, compatible hardware, storage requirements, and print settings.
