Key takeaways
- The right question isn't "which printer" but "how hot does my first part get, and how many millimetres wide is it".
- Spend money in this order: enclosure → high-temperature bed → nozzle ceiling → build volume → multi-colour. Most newcomers go the other way.
- A 2–3 million VND support budget changes the result more than the last 5 million put into the printer.
- The maximum speed on the brochure is the number least related to the part you'll get.
Most 3D printers sit idle after two months not because the printer is bad, but because it was bought to answer a question nobody asked. This article goes the other way round: the part first, the money after.
Three questions before you open a shop page
Answer with a real part, not "probably"
- What is the first part
- A fixture? An equipment housing? A model? A replacement car part? The first three are FDM; the last needs a heat-resistant material.
- How hot does it get
- Under 50 °C: PLA is enough. Up to 70 °C: PETG. In a closed car in tropical sun: over 60 °C, so ASA, PA or PC.
- How many millimetres wide is it
- This number decides build volume **and** whether you need an enclosure.
If the answer to all three is "don't know yet", buy at the lowest tier. The second printer is always chosen better than the first, because by then you have three real answers.
Four tiers, by observed price
| Tier | Price range | Opens up | Can't do |
|---|---|---|---|
| Entry, open frame | 5–9 million VND | PLA, PETG, TPU. Enough for fixtures, housings, FDM models | Large ABS/ASA parts, PC, PA6-GF |
| Enclosed | 9–15 million VND | Adds ABS and ASA for medium parts; fewer draught problems, quieter | PC and PA6-GF (no chamber heat, no 120 °C bed) |
| Actively heated chamber | 25–35 million VND | The whole catalogue: PC, PA-CF, PA6-GF, large ASA | No meaningful material limit within the ZORVA catalogue |
| Desktop resin printer | 16–24 million VND | Features under 1 mm, figurines, glossy-surface models | Impact parts and hot parts — this is a different technology, not a better printer |
Spend money in this order
- An enclosure. It opens up a material family, and it's the only upgrade on the list that does so at a low price.
- A bed that reaches 120 °C. The most overlooked limit. A 100 °C bed isn't enough for PC.
- A nozzle ceiling of 300 °C or more. Opens up PA6-GF and PC — but only means something once you have a chamber.
- Build volume. Expensive, and needed less than people think. Count how many parts really exceeded 200 mm in the last three months.
- Multi-colour. Fun, useful for models, and changes almost nothing for functional parts.
Most newcomers go the other way: buy a big volume and multi-colour first, then discover they can't print ABS. The four deciding numbers are in what can my 3D printer print.
The support budget nobody counts
- A sealed box with desiccant — mandatory in a humid climate, not an accessory. A PETG spool left open for two weeks prints with popping and a foamy surface.
- A filament dryer or a convection oven with a thermometer — if you plan to print PETG, nylon or PC. Drying routine.
- A spare hardened nozzle — cheaper than a spool, and the condition for every fibre-filled material. The nozzle article.
- Filament to learn on — two or three spools of PLA for the first failed prints. They will fail, and that's a normal part of this.
- For a resin printer: isopropyl alcohol, gloves, a ventilated area, spare FEP film — it adds up, and it needs more space than the printer itself.
The real running cost per part — material, electricity, machine hours, labour and failures — can be worked out with the print cost calculator, on your own numbers rather than anyone else's. To see which materials a given printer can handle, use what can my printer print.
Five common mistakes
- Buying a big volume first. Volume and material range are independent; wide parts also need a stricter chamber.
- Believing the maximum speed. 600 mm/s is a figure for ideal conditions with PLA. With engineering materials you'll run at a fraction of it.
- Buying resin to make mechanical parts. 6 % elongation and an HDT of 73 °C are two reasons the part will snap or sag.
- Skipping filament and dry storage to put the money into the printer. Wet filament ruins results on every printer, including a 30-million one.
- Choosing from an old review. Lineups change several times a year; open the spec page of the model actually on sale.
The printer sets the ceiling on materials. Dry filament and orientation decide the rest.
The first seven days, in order
- 01
Day 1 — print the maker's sample file
Don't print a model you downloaded. Print the sample file that came with the printer, with the filament that came with it, on the default profile. If that comes out well, the printer is fine — every problem after that is settings or filament.
- 02
Day 2 — calibrate flow and pressure advance
A flow calibration and a single-wall test take half an hour and fix most of the surface defects newcomers blame on the printer. Record the values for each spool, because every filament is different.
- 03
Day 3 — a tolerance test, measured with calipers
Print a test with holes and pins in several sizes, then measure. You'll learn how much undersize your printer makes holes — a number that goes into every drawing after that.
- 04
Day 4 — store filament properly
Open the sealed box, add fresh desiccant, and put away every spool you're not using. Five minutes that decide the next three months, especially for PETG and nylon.
- 05
Days 5–6 — print the real part, and accept reprints
Print the very part you named in the three questions at the top. It will take two or three attempts: the first off on tolerance, the next off on orientation. That's the normal process, not a sign of a bad printer.
- 06
Day 7 — choose your second material deliberately
By now you know what your part lacks: heat resistance, impact resistance, or stiffness. Use the material finder to go from that gap to a material, instead of buying another colour of PLA.
To see what each maker is selling besides the printer, 3D printer makers compared reads them by the specs they publish.
Frequently asked
Can 5 million VND buy a usable 3D printer?
Yes, at the open-frame entry tier, and it prints PLA, PETG and TPU well. That's most of a small workshop's work. Set aside 500–800 thousand of that budget for a sealed box, desiccant and a spare spool rather than putting it all into the printer.
Should I start with a used printer?
Only if you can establish three things: which standard nozzle and bed fit it, which slicer can export files for it, and who still updates its firmware. A used printer is cheap, but one part that's no longer sold makes the whole machine useless — and as a beginner you have nothing to compare against, so it's hard to tell when it's running wrong.
Do I need a powerful computer for 3D printing?
No. Slicers run fine on an ordinary office computer; the heaviest task is opening models with very many triangles. A better investment is a ventilated spot for the printer that isn't under the air conditioning.
Can I put a 3D printer in my bedroom?
Not recommended, and that decision matters more than any choice of printer spec. 3D printing releases ultrafine particles and volatile compounds, most of all with ABS, ASA and PC. A covered balcony corner or a utility room beats any filter. Details in 3D printing fumes and ultrafine particles.
When should I upgrade?
When you have a specific part your current printer can't make, and you've tried changing material first. A lot of "I need a better printer" is really "I need to move from PLA to PETG or ASA" — the substitution guide is cheaper than a new machine.