Every FilamentFeed story on Prusa Research — news, reviews, and analysis, newest first.
A blowtorch test of a dozen filaments found ABS, ASA, and foam TPU burn readily with sooty yellow flames, while regular TPU and PETG strongly resist ignition even under direct flame.
Read the story →Prusa delays INDX conversion kits for the CORE One/+ to mid-August after Bondtech admitted its 'hardened' nozzles are nitrocarburized ordinary steel (~30-32 HRC vs the promised 55-60) that 100 g of abrasive filament wears through — Prusa offers refunds and free hardware while Bondtech quietly renamed the product and has no compensation plan.
A maker hunting for a cheap webcam turned to Thingino, open-source Linux firmware for budget Ingenic-chipset IP cameras, and scripted his own bridge into Prusa's remote monitoring API before official camera support ships.
Prusa's new castor-oil-based PA11 nylon lands between PA6 and PA12 with lower moisture uptake, strong impact resistance and broad chemical resistance — but it needs an enclosed, chamber-heated printer to run.
A GitHub repo has reconstructed parametric CAD for Prusa's INDX toolchanger from Prusa's own printable mesh and published it as CC BY-SA 4.0 — a share-alike claim that runs straight into the Open Community License, which says any distributed derivative stays under OCL.
Stefan of CNC Kitchen has released PrusaPATuner, an experimental AGPL-3.0 tool that auto-calibrates pressure advance on Prusa printers by repurposing the nozzle load cell as a back-pressure sensor — no extra hardware, no test prints, no squinting at a calibration tower.
Prusa's 6.6.2 firmware for CORE One/CORE One+ INDX fixes nozzle-cleaner offset drift and tool-pickup ejection, auto-migrates EEPROM offsets, and adds safety options for lost-tool recovery and Dock Calibration.
Sovol's M1D fuses independent dual extrusion with a six-toolhead changer for up to seven purge-free colors, launching on Kickstarter from $1,199.
Marlin runs entirely on your printer's own board; Klipper splits the job with a host computer. Both now do input shaping and pressure control. Here is how the two actually compare — and who ships which one stock.
The MK4S and M5C both promise 500 mm/s, but they sit in different price classes and different realities: one is Prusa's flagship workhorse, the other a $399 speed bargain whose maker has left the FDM market. Here is how the two compare on specs, ecosystem, and long-term ownership.
Filament price is only part of the bill. A step-by-step breakdown of material, electricity, machine depreciation, failure rate, and labor costs, with a full worked example calculating the true cost of one printed part.
Prusa's July update confirms the standard 8-tool INDX kit starts shipping by end of July, backed by firmware 6.6.1 fixes and waste-reduction numbers that dwarf a rival multicolor setup.
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