Will it print?
What to feed the Prusa MK4
Best filament for the Prusa MK4
Prusament PLA is the house answer: it's the machine's default spool, holds a ±0.02 mm diameter tolerance, and serves as the benchmark we measure other PLA against. The MK4 itself runs PLA, PETG, TPU, ABS, and ASA.
The 120 °C bed is the quiet superpower
ABS and ASA want 90-110 °C underneath, and plenty of printers only just get there. The MK4 clears the whole range with margin. Ventilate for both, and note that Prusament ASA pairs well with Prusa's own enclosure if you have one.
For functional parts
Prusament PETG holds the same ±0.02 mm standard and is our note for parts needing chemical resistance: water containers, clips that touch oils.
What to feed the Prusa MK4
Best filament for the Prusa MK4
Prusament PLA is the house answer: it's the machine's default spool, holds a ±0.02 mm diameter tolerance, and serves as the benchmark we measure other PLA against. The MK4 itself runs PLA, PETG, TPU, ABS, and ASA.
The 120 °C bed is the quiet superpower
ABS and ASA want 90-110 °C underneath, and plenty of printers only just get there. The MK4 clears the whole range with margin. Ventilate for both, and note that Prusament ASA pairs well with Prusa's own enclosure if you have one.
For functional parts
Prusament PETG holds the same ±0.02 mm standard and is our note for parts needing chemical resistance: water containers, clips that touch oils.
Top picks for the Prusa MK4
Editor-tested filaments and Prusa's own spools: start here.
Tightest diameter tolerance in its class (±0.02 mm) and the default on the Prusa MK4. It's the benchmark everything else is measured against.
Tuned for Bambu A1/P1S/X1C out of the box. No dial-in needed when using AMS with the built-in profiles.
Creality's own high-speed PLA, the default spool for K1 and Ender-3 V3 owners.
The budget Amazon staple of the Ender/Neptune era: consistent, cheap, and everywhere.
The classic budget PLA+: tougher than plain PLA, semi-matte finish, and a decade of community trust.
US hobbyist staple: widely available on Amazon Prime, consistent quality, and sold in a huge color range.
The Micro Center house brand. If there's a store near you, it's the cheapest reliable PLA+ you can walk out with today.
Great per-kg value with consistent results. A popular starting point when you want to print a lot without spending much.
All compatible filaments
1,632 filaments work with this printer, popular brands first, showing 50. Full lists: PLA, PETG, TPU, ABS, ASA