Can ABS Be 3D Printed?
Yes — but ABS is the fussiest common filament. Here is why it warps, what an enclosure does, and why ASA is usually the better answer.
Yes, ABS can be 3D printed. It is the plastic Lego bricks and car interior trim are made from, and it has been printed on FDM machines for as long as FDM machines have existed. But it is the most temperamental of the common filaments, and it is worth understanding why before you ask for it.
Why ABS is difficult
ABS shrinks as it cools — noticeably more than PLA or PETG. In a print, that shrinkage is not uniform. The layer being extruded is hot and expanded; the layers below have already cooled and contracted. Every new layer pulls on the ones underneath.
Two things follow:
- Warping. Corners curl up off the bed, and long flat parts bow. The bigger and flatter the part, the worse it gets.
- Layer splitting. Tall parts can crack horizontally partway up as the accumulated stress overcomes the bond between layers.
ABS also gives off a noticeable smell while printing, so it wants ventilation.
What an enclosure actually does
The fix is to stop the part cooling unevenly. An enclosure traps the heat coming off the bed and the part, holding the whole build in warm, still air. The already-printed layers stay closer to the temperature of the fresh one, so there is far less differential shrinkage — less warping, better layer bonding.
That is the whole trick. It is not exotic, but it does mean ABS is not something you throw at any printer and hope. Along with a hot bed, adhesion promoter, no part cooling fan and a draught-free room, it turns ABS from "usually fails" into "usually works".
Why we normally suggest ASA instead
ASA is ABS's better-behaved relative. Same broad family, same heat resistance, similar strength and machinability — but with two real advantages:
- Much better UV resistance. ABS goes chalky, yellow and brittle in sunlight, sometimes within a single summer. ASA is designed for outdoor use and holds up.
- Slightly easier to print. It still wants an enclosure, but it is a little more forgiving about warping.
There is almost no job where ABS beats ASA except colour matching to an existing ABS component, or cost on a large part. If you ask for ABS for an outdoor or automotive part, expect us to suggest ASA and explain why.
When ABS or ASA is genuinely worth it
- Heat. A car interior in July, a part near a motor, light fitting or hot pipe. PLA sags, PETG softens; ABS and ASA hold their shape.
- Sunlight. Outdoor fittings, campervan exterior parts, garden hardware — ASA.
- Automotive trim. It matches what the original was, takes paint well, and behaves the same in the same conditions. Our automotive and campervan parts service leans on ASA for exactly this.
- Post-processing. ABS sands well and can be smoothed and solvent-welded, which matters for cosmetic parts.
When it is not worth it — be honest with yourself
- Large flat panels. A wide, thin ABS plate is fighting physics. Warping risk is high even with an enclosure, and the cost of a failed print lands somewhere. For a big flat part with no heat requirement, PETG will be cheaper, more reliable and just as good.
- Indoor, room-temperature, out of the sun. You are paying an ABS premium for nothing. PETG is tougher anyway.
- Very fine detail on tall parts. The stress and the lack of part cooling both work against you.
- Parts needing maximum toughness. ABS is not the strongest option; nylon is.
The rule of thumb: choose ABS or ASA when the environment demands it, not because it sounds more industrial. Our PLA vs PETG vs ABS guide sets out the trade-off in one page.
Cost
ABS and ASA cost more to print than PLA or PETG — the filament is dearer, the print is slower, and the failure rate is higher, which has to be priced in. See how pricing works for what feeds into a figure.
Tell us where the part lives and how hot it gets, and we will pick the material for you.
Worked examples
Real models from our print library, priced by the same calculator that estimates your own part — so you can put numbers against the advice above.
| Example part | Size | PLA | PETG | ABS / ASA |
|---|---|---|---|---|
| 15mm Pipe Clip | 19 × 39 × 12 mm | £1.18 – £1.51 | £1.25 – £1.60 | £1.42 – £1.81 |
| 28mm Pipe Clip | 30 × 52 × 16 mm | £2.46 – £3.14 | £2.61 – £3.33 | £2.93 – £3.75 |
| L-Bracket (large) | 70 × 40 × 70 mm | £9.99 – £12.76 | £10.50 – £13.42 | £11.62 – £14.85 |
| Gusseted Shelf Bracket (large) | 90 × 60 × 90 mm | £21.97 – £28.07 | £23.09 – £29.51 | £25.54 – £32.64 |
Guide prices for a single unit, calculated from the measured geometry of each example model — not fixed quotes. Small parts land at or near the £0 minimum order, and per-unit prices fall with quantity. Your price depends on your own part, its material and its printability. How pricing works.
Models that show this in practice
Open-source designs from our print library. Each one has a full material and quantity price breakdown.
L-Bracket (small)
Coaster (large)
Garage Tool Rail (6-hook)
Coaster (standard)
These are open-source example designs (CC0) we publish to show what the process suits and what it costs — not a record of past jobs. Prices shown are examples in PLA.
Get a 3D print estimate
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Related guides
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The route from a sketch to a batch you can sell — what each stage is for, what to test, and when to stop printing in PLA and start printing in something real.
How Many Prototype Iterations Should You Expect?
Three or four rounds for a simple part, more for anything with a mechanism. How to iterate cheaply — one change at a time, several variants per print — and how to know when to stop.
From Prototype to Production
What happens after the design is frozen — bridge batches, the point where tooling beats printing, the design changes that make moulding cheaper, and what a moulder actually needs from you.