Key takeaways
- A printer's temperature ceiling is not a printing temperature. A printer rated 300 °C and a material that needs 300 °C is a pairing with no margin at all.
- An enclosure and a heated chamber are different things. ABS lives with a passive enclosure; PA6-GF and PC need real heat in the chamber.
- The bed is the most overlooked limit: a 100 °C bed isn't enough for PC, which needs 100–120 °C.
- Carbon and glass fibre wear a brass nozzle wide within a few hundred grams. It's the cheapest upgrade on the whole list.
The most common question in the Lab's inbox isn't "which material is strongest" but "can my printer print this one". The answer is almost always on the printer's spec sheet, in four lines — and three of those four are usually misread.
Four numbers, and what they really mean
Read the printer's spec sheet in this order
- Maximum nozzle temperature
- Sets the ceiling on polymer families. Under 250 °C: PLA, PETG, TPU. It takes 300 °C to open up PA6-GF and PC.
- Maximum bed temperature
- Decides whether the first layer holds. ABS/ASA need 95–110 °C, PC up to 120 °C.
- Enclosure — passive or heated
- Decides whether the part warps and delaminates. This is the most misunderstood line.
- Nozzle material
- Brass for unfilled plastics. Hardened steel or bimetal for anything with fibre.
The other two lines on the brochure — maximum speed and acceleration — don't decide which materials you can print. They decide how long a print takes, and with engineering materials you won't be running at those speeds anyway.
What each material asks of the printer
| Material | Nozzle | Bed | Chamber | Hardened nozzle |
|---|---|---|---|---|
| PLA (all grades) | 205–235 °C | 55–65 °C | Not needed | Advisable with PLA-CF and matte PLA |
| PETG | 235–260 °C | 75–85 °C | Optional | Required for PETG-CF |
| TPU 85A–95A | 215–235 °C | 35–60 °C | Not needed | Not needed |
| ABS | 245–265 °C | 95–110 °C | 45–55 °C | Not needed |
| ASA | 250–270 °C | 100–110 °C | 50–60 °C | Not needed |
| PA12 | 250–275 °C | 70–90 °C | 45 °C | Not needed |
| PA-CF | 260–290 °C | 80–100 °C | 50 °C | Required |
| PA6-GF | 270–300 °C | 90–110 °C | 55 °C | Required |
| PC | 265–300 °C | 100–120 °C | 50–60 °C | Not needed |
Popular printers against the table above
| Printer | Max nozzle | Max bed | Chamber | Build volume |
|---|---|---|---|---|
| Bambu Lab A1 | 300 °C | 100 °C | Open, no enclosure | 256 × 256 × 256 mm |
| Prusa MK4S | 290 °C | 120 °C | Open; enclosure sold separately | 250 × 210 × 220 mm |
| Prusa CORE One+ | 290 °C (400 °C with HT hot end) | 120 °C | Enclosed, actively heated to 55 °C | 250 × 220 × 270 mm |
| Creality K2 Plus | 350 °C, hardened steel nozzle | 120 °C | Enclosed, maker states up to 60 °C | 350 × 350 × 350 mm |
| QIDI Plus 4 | 370 °C | 120 °C | Enclosed, actively heated to 65 °C | 305 × 305 × 280 mm |
| Bambu Lab H2D | 350 °C | — | Enclosed, actively heated to 65 °C | 325 × 320 × 325 mm (one nozzle) |
These are the key values each maker publishes, read on 27/08/2026. We only include figures that appear on the maker's own spec page; where a maker doesn't publish a value, the cell is left blank rather than guessed.
Put the two tables side by side and the boundaries appear. An open A1 with a 100 °C bed prints PLA, PETG and TPU well, and small PA12 parts; it is not enough for PC, which needs a bed up to 120 °C and a chamber holding 50–60 °C. An MK4S without its enclosure is similar: its 120 °C bed is enough, but without a chamber, ABS parts wider than about 80 mm will warp or split. A Plus 4 or K2 Plus, with a heated chamber and a nozzle over 350 °C, covers the whole material table above. The what can my printer print tool runs this comparison for you.
Three expensive mistakes
1. An enclosure is not a heated chamber
An acrylic box around a printer holds the heat the bed gives off — a passive chamber. Its steady temperature depends on the bed and the room, typically 35–45 °C with the bed at 100 °C. Enough for medium ABS parts. Not enough for PC or PA6-GF, which need chamber heat as a controlled setting. More in the enclosure article.
2. "Supports PA-CF" means printable, not printed well
The material list on a sales page is the list of materials the maker got a part out of, not the list that delivers data-sheet properties. Nylon printed in a 30 °C chamber still produces a part — one that warps, and whose last layers are weaker than its first because the spool reabsorbed moisture during the print.
3. The bed is the most overlooked limit
People compare nozzles first and discover afterwards that the bed falls short. The difference between a 100 °C bed and a 120 °C bed is the difference between printing PC and not. If you're choosing a printer for engineering materials, read the bed line before the nozzle line.
The printer doesn't limit you to materials. It limits you to temperatures, and temperature is what picks the material.
If your printer falls short: three ways forward
- 01
Change the material, keep the printer
This is the right path in most cases and costs nothing. If you need heat resistance up to about 76–78 °C, PETG does it on an open printer with no enclosure. If you need sun resistance, ASA is the answer, not PC. The cross-reference is in the substitution guide.
- 02
Upgrade in the right order
Hardened nozzle first (cheapest, opens up every fibre-filled material), then a heated dry box, then an enclosure, then a high-temperature hot end. Changing the hot end before you have an enclosure is paying for a ceiling you can't use yet.
- 03
Outsource the parts beyond your printer
For one or two PC or PA6-GF parts a month, outsourcing costs less than upgrading the printer plus the time to relearn settings. The Studio takes jobs like these — send the part here.
To go the other way — know what the part needs, then find the material — use the material finder. And if you're weighing technologies rather than just FDM printers, read FDM vs resin vs SLS.
Frequently asked
Can a budget 3D printer print ABS?
Yes, on two conditions. The bed must reach 95–110 °C, and the printer must have an enclosure — even a passive one. At this price point, a printer that ships enclosed, such as the Bambu Lab P1S, is a better choice than an open printer plus a home-made box. For small parts under 80 mm, an open printer in a draught-free room can still give usable results.
Can a 300 °C nozzle print PEEK or PEI?
No. PEEK needs a nozzle around 400 °C, a bed above 130 °C and a chamber heated to 100 °C or more — that's a different class of machine, not an upgrade. A 300 °C ceiling stops at PC and PA6-GF, which is also the edge of what ZORVA sells.
Do I need a hardened nozzle for matte PLA?
It's advisable. The mineral in matte PLA is mildly abrasive: a brass nozzle lasts months instead of years. That's much less wear than carbon fibre, but the symptoms are the same — a surface that slowly worsens and lines that slowly widen, easily blamed on the material.
Does a bigger printer print more materials?
No. Build volume and material range are independent. An open 350 × 350 mm printer still can't print PC, while a 180 mm printer with a heated chamber can. A bigger volume makes it harder if anything: the wider the part, the more shrinkage stress accumulates, and the stricter the chamber requirement.
How do I know my enclosure's temperature?
If the printer has no chamber sensor, put a separate thermometer inside and read it 20 minutes into a print — not right after switching on. That figure is what you compare with the "Chamber" column above. With most passive enclosures you'll see 35–45 °C with the bed at 100 °C.