An enclosure is one of those upgrades that sits on the "maybe someday" list for a long time - until you try to print ABS and it warps off the bed for the fourth time, or your PETG gets draught-affected mid-print and develops a crack through the entire model. Then it jumps straight to the top of the list.
I printed without an enclosure for about eighteen months. It was fine for PLA. The moment I wanted to do anything more serious - ASA outdoor parts, ABS functional parts, large PETG prints in a cold room - the lack of enclosure was holding back every print. An enclosure wasn't just a nice-to-have, it was the thing standing between me and reliable results with engineering materials.
FDM printing is sensitive to ambient temperature and airflow. When the air around your print is cold or moving, the outer layers cool faster than the inner ones. This creates thermal stress - the outer shell contracts while the inner core is still hot - and the result is warping, layer cracking, or delamination.
An enclosure traps the heat from the heated bed and keeps the air around the print warm and still. For ABS, ASA, and similar materials, this isn't optional - it's the difference between prints that work and prints that don't.
Even for PLA, an enclosure reduces the risk of draughts ruining long prints and keeps ambient temperature consistent between seasons.
The Creality fabric enclosure tent is the most popular budget option and genuinely works. It's a zippered fabric tent that fits around most standard printers (Ender 3 size and similar), keeps heat in, reduces noise slightly, and costs around £30-40.
It's not perfect - fabric isn't as thermally efficient as a rigid enclosure, it doesn't seal perfectly, and you can't see the print as clearly through the clear window panel. But for reducing warping on ABS and ASA prints, it makes a real difference at a price that's hard to argue with.
Best for: Budget buyers, Ender 3 and similar sized printers, anyone who wants to try an enclosure without spending much.
Watch out for: Check the dimensions match your printer. Creality makes multiple sizes.
The Comgrow is a step up from the basic fabric tent - better build quality, clearer viewing window, and more stable frame. Still a fabric-based enclosure rather than rigid, but the improved construction means less heat leakage and a tidier setup.
Priced around £45-60. Good choice if the Creality tent feels too flimsy but you're not ready to spend on a fully rigid enclosure.
Best for: Mid-range budget, anyone who wants better build quality than the basic tent without the premium price.
For a proper rigid enclosure, the most popular DIY option in the community is the IKEA Lack table enclosure - two IKEA Lack tables (£5-8 each) stacked and modified with printed brackets to form a rigid box. With an acrylic or polycarbonate door panel and foam tape sealing, it's an excellent enclosure for around £30-50 total if you have a printer already (you print the brackets yourself).
Search IKEA Lack enclosure parts on Amazon UK
It's a project, not a plug-and-play purchase. But the result is better than most budget pre-built enclosures and you can customise it for your specific printer.
If you have a Bambu Lab printer, their official enclosure is the cleanest solution - designed specifically for their printers, rigid panels, proper sealing, and it integrates with the printer aesthetically. It's around £100-120 which is expensive for an enclosure, but it's purpose-built and fits perfectly.
For non-Bambu printers, there are various rigid panel enclosures on Amazon around the £80-120 range - quality varies significantly so check reviews carefully before buying.
Best for: Bambu Lab owners who want a clean, purpose-built solution.
Honestly, usually not. PLA prints well at room temperature without warping issues in most cases. Where an enclosure helps with PLA is in cold environments (below 15°C ambient), draughty rooms, or very large prints where temperature consistency across the full print height matters.
Where you definitely need an enclosure:
Ventilation matters for ABS and ASA. These materials release fumes that you don't want to breathe. If you enclose them, make sure you're either printing in a ventilated space or add a filter (activated carbon filter kits are available for most enclosures). PLA fumes are much lower risk.
Temperature inside the enclosure rises. Your electronics (stepper drivers, mainboard) don't love being in a hot enclosure. Some printers handle this fine; others benefit from routing electronics cables to sit outside the enclosure while the print chamber stays warm. Worth checking what others with your specific printer model have done.
You can build better than you can buy at the budget end. The Lack table build beats a £40 fabric tent for thermal performance. If you have an afternoon and enjoy a project, it's worth considering.
An enclosure is one of the upgrades with the clearest before/after results if you're printing temperature-sensitive materials. If you've been fighting ABS or ASA warping and haven't tried an enclosure yet, that's where to start.