Prusa Research
Every FilamentFeed story on Prusa Research — news, reviews, and analysis, newest first.
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Printers
Prusa's INDX Multi-Material System Starts Shipping: 30x Less Waste Than Rivals
Bondtech has begun shipping Prusa's INDX Founder's Edition toolchanger upgrade, which Prusa says cuts multi-color purge waste roughly 30x versus rival systems while supporting eight tools and a CMYKW+RGB workflow.
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Guides
Snap Fit Design for 3D Printing: Deflection Math, Tolerances, and Material Tradeoffs
Cantilever and annular snap fits are deceptively simple mechanisms that FDM printers struggle to reproduce reliably. Here is the geometry, deflection math, clearance strategy, and material selection logic to get them right on the first print.
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Guides
Multi-Material FDM in 2026: Why Architecture Matters More Than You Think
Choosing a multi-material printer is really a choice between three distinct hardware architectures, each with fundamentally different tradeoffs in purge waste, contamination risk, and temperature compatibility -- and the wrong choice for your materials can make certain prints impossible.
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Software
OrcaSlicer vs. Bambu Studio vs. PrusaSlicer: Which Slicer Actually Wins in 2026?
The slicer landscape in 2026 has fragmented along clear lines: ecosystem loyalty, calibration depth, and hardware compatibility each favor a different tool, and the right answer depends almost entirely on what you are printing on.
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Printers
Prusa XL Gets Its Most Ambitious Update Yet: Silicone Printing, Pick-and-Place, and a Lower Price
Prusa Research has significantly upgraded the XL platform with two new experimental toolheads, a price reduction, and the end of the semi-assembled option — signaling that the machine is maturing from a niche workhorse into a genuine production tool.
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Guides
Manual Color Swaps Without an AMS: G-Code Pause Commands in PrusaSlicer, OrcaSlicer, and Bambu Studio
Multi-color printing without a filament changer is entirely achievable using M600 and pause-at-layer commands. The slicer implementations differ in important ways, and getting the G-code sequencing wrong produces failed swaps, ooze blobs, or color bleed that contaminates the swap layer.
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Materials
TPU vs TPE vs TPC: Choosing the Right Flexible Filament for the Job
Flexible filaments are not interchangeable. TPU, TPE, and TPC differ substantially in hardness, chemical resistance, print temperature, and long-term fatigue behavior. Choosing the wrong one means a part that either fails in service or was never printable in the first place.
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Software
3MF: Why the 3D Printing Industry Is Moving Away From STL
STL has been the default 3D printing format for 35 years. The 3MF format does everything STL does and adds color, material, orientation, and multi-part support — here's why the transition is accelerating.
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Materials
Matte Filament: Why Dull Finishes Are Sometimes the Better Choice
Matte PLA and PETG reduce layer-line visibility, photograph better under broad lighting, and hide fingerprints. Here's how the finish is produced and where it makes sense.
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Printers
Prusa MINI+: The Case for a Smaller, Smarter Second Printer
At 180×180×180mm build volume, the MINI+ won't replace a full-size machine. But its compact footprint, consistent quality, and open-source firmware make it one of the most practical second printers available.
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Guides
Designing and Printing Watertight Parts: Vases, Containers, and Plumbing Fittings
FDM prints aren't watertight by default. Layer gaps, infill voids, and perimeter seams all leak. Here's how to close them — in the slicer, the design, and post-processing.
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Software
Slicer Showdown: Bambu Studio vs OrcaSlicer vs PrusaSlicer — Which Should You Use?
All three major slicers can get plastic on a print bed. Where they diverge is in workflow philosophy, calibration tooling, and how tightly they're coupled to their hardware ecosystems.
