Prusa Research
Every FilamentFeed story on Prusa Research — news, reviews, and analysis, newest first.
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Printers
Prusa Ships the First INDX Founder's Edition Units — And Firmware 6.6.1 Fixes the Growing Pains
Bondtech has begun shipping Founder's Edition INDX toolchangers as Prusa's 6.6.1 firmware squashes early bugs, setting up a direct price-and-waste showdown with Bambu Lab's H2C.
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Printers
Prusa's INDX Multi-Material Toolchanger: Founder's Edition Ships, Waste-Free Nozzle Swaps Detailed
Prusa's July update confirms Founder's Edition INDX units are shipping, with a 13mg-per-swap waste bin, inductive offset calibration, and CMYKW+RGB color-mixing detailed ahead of the full August rollout.
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Guides
3D Printer Nozzle Size Guide: 0.25mm vs 0.4mm vs 0.6mm vs 0.8mm-1.0mm
Prusa and E3D manufacturer data on how nozzle diameter caps layer height and flow rate, with per-size guidance for detail work, general printing, and speed.
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Guides
3D Printing Temperature Guide: Nozzle and Bed Temps by Filament Type
A reference guide to nozzle and bed temperatures for PLA, PETG, ABS, ASA, TPU, and nylon, drawn from manufacturer technical data sheets and enclosure/adhesion guidance.
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Printers
Bondtech Opens Orders for INDX Development Kit, Bringing Tool-Changing to DIY Printers
Bondtech's INDX Development Kit, on sale since Friday, brings its wireless-induction tool-changing head to Klipper, Kalico, and RepRapFirmware machines instead of just Prusa's CORE One.
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Software
Prusa Ships Firmware 6.6.1 for CORE One INDX, Fixing Spontaneous Tool-Head Resets
Prusa's stable 6.6.1 firmware for CORE One/+ INDX toolchangers fixes random tool-head resets and tool-assignment mix-ups after crashes, and adds a bed-lowering safety net for lost tools.
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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.
