Advanced 3D Printing

The A1 and A2L are Bambu Lab's two open-frame printers — bed-slinger machines without an enclosure, built for PLA, PETG, and TPU. They look similar in spirit but serve different needs. The A2L is not simply a bigger A1; it is a newer machine with a meaningfully upgraded motion and extrusion system, plus a feature the A1 does not have at all. Here is how to choose. The Core Difference: Size and Generation The A1 launched in late 2023 with a 256×256×256 mm build volume. The A2L arrived in June 2026 with a 330×320×325 mm build volume — 105% larger — and a set of internal upgrades that reflect two and a half years of engineering progress. The A2L is the large-format, second-generation A-series machine the community had been asking for. Side by Side Bambu Lab A1 Bambu Lab A2L Build volume 256×256×256 mm 330×320×325 mm Max nozzle temp 300°C 300°C Max bed temp 100°C 80°C Extruder Direct drive PMSM closed-loop servo Vibration control Input shaping Adaptive vibration compensation Max speed 500 mm/s Up to 1000 mm/s Multi-colour AMS Lite (up to 4) AMS Lite (up to 4) Cutting / pen modules No Yes (optional) Materials PLA, PETG, TPU PLA, PETG, TPU Why the A2L's Bed Temperature Is Lower One spec looks like a downgrade: the A2L's bed maxes at 80°C versus the A1's 100°C. This is deliberate. The A2L's bed is much larger, and heating that area to 100°C would draw enough power to strain a typical home electrical circuit. Bambu capped it at 80°C for energy efficiency and safety. Since both machines are designed for PLA, PETG, and TPU — none of which need a bed above 80°C — this does not limit their intended use. Neither machine is suitable for ABS or ASA regardless; that requires an enclosure. The A2L's Unique Trick: Cutting and Drawing The A2L has a mounting point for optional modules that no other Bambu printer offers. The Blade Cutting Upgrade Kit adds a cutting module and pen module, turning the A2L into a vinyl cutter and plotter. It cuts stickers, paper, vinyl, and thin leather, and draws with a pen — Cricut-style craft work on a machine that also 3D prints. For a craft room or small personalisation business, this dual capability is genuinely useful. Note the A2L does not support laser modules, due to safety considerations with its open frame. The Real-World Upgrades Beyond size, the A2L's PMSM closed-loop servo extruder monitors extrusion in real time and detects problems before they ruin a print — technology shared with the X2D. Its adaptive vibration compensation actively corrects ringing and ghosting as a print grows taller, which matters more on a large bed-slinger where tall prints wobble more. These are real quality improvements, not just marketing. Which Should You Buy? Choose the A1 if: you are new to 3D printing, you mostly print single-colour or multi-colour PLA and PETG at normal sizes, and you want the most affordable, proven entry into the Bambu ecosystem. It remains an excellent machine. Choose the A2L if: you need the larger build volume for cosplay, large decor, or one-piece prints; you want the cleaner tall-print quality from adaptive vibration compensation; or the cutting and pen modules appeal to your craft or personalisation work. Both are PLA/PETG/TPU machines. If you need to print ABS, ASA, or engineering materials, neither is the right choice — look at the P2S (enclosed) or the active-chamber machines instead. Available from Eolas Prints Eolas Prints sells genuine, 100% original Bambu Lab printers, shipped from Cantabria, Spain. Both the A1 and A2L are in stock and ship across Europe with EU warranty. Pricing is on each product page. Contact us if you would like help deciding.

For any organisation considering the Prusa Pro HT90, the real question is not whether it works — it demonstrably does. The question is whether it is the right fit for your specific operational requirements, compared to the industrial machines it is positioned against. This article gives you an honest comparison. The Landscape Before the HT90 Until recently, if your engineering process required functional PEEK, Ultem, or PA-CF parts from an in-house machine, your options were limited and expensive: Stratasys Fortus 450mc / F900: Industrial FDM with heated chamber, full material range. Price: €80,000–€200,000+. Requires dedicated facility space, climate control, trained operators. Markforged X7 / X5: Continuous fibre reinforcement capability, metal and composite materials. Price: €50,000–€100,000. Different capability profile — very strong continuous-fibre parts, but not the same material range. Roboze One+ 400: PEEK and high-temp capable desktop/semi-industrial. Price: €30,000–€60,000. Closer in price to the HT90 but still substantially more expensive. Bureau printing services: Pay per part, no capital investment. High per-unit cost, lead times of days to weeks, IP exposure when sending proprietary part geometry to third parties. The Prusa Pro HT90 sits below all of these on price while offering a meaningful subset of their capabilities. Understanding exactly which subset — and which gaps remain — is the basis for making the right decision. Where the HT90 Competes Directly The HT90 delivers industrial-grade results in the following scenarios: Prototype iteration in engineering materials. If you are iterating on PEEK or Ultem geometries — testing fit, thermal performance, or mechanical behaviour — the HT90 gives you in-house capability at a fraction of bureau or industrial machine cost. Design-to-print cycles that previously took a week and cost hundreds of euros per part can be done overnight for the cost of filament. Low-to-medium volume functional end-use parts. For production runs measured in tens or hundreds rather than thousands, the HT90 is a realistic in-house production tool. Jigs, fixtures, custom brackets, tooling inserts, sensor housings — any part where PEEK or PA-CF is the right material and volumes are moderate. Research and development environments. University labs, corporate R&D departments, and materials science teams need access to engineering polymer printing capability without capital budgets for industrial machines. The HT90 fills this gap genuinely. Medical device prototyping. PEEK is biocompatible and autoclave-sterilisable. For companies developing implants, surgical tools, or medical equipment components, in-house PEEK printing capability has historically required either a large capital investment or a service bureau relationship. The HT90 changes that equation. Where Industrial Machines Still Have the Edge The HT90 is an honest machine. Understanding where it doesn't compete with industrial systems is as important as understanding where it does. Build consistency and process repeatability Industrial machines certified for aerospace, medical device production, or regulated manufacturing processes have documented, validated process capability — Cpk values, traceability systems, and quality control frameworks that meet ISO 13485, AS9100, or similar standards. The HT90, as a professional desktop machine, does not come with this level of process validation documentation out of the box. For prototype and R&D work this doesn't matter. For regulated end-use production, it may. Multi-material and support material printing The Stratasys Fortus series prints with dedicated support materials (SR-30, SR-35) that dissolve in a bath, enabling complex internal geometries that cannot be supported with standard breakaway supports. The HT90 is a single-extrusion machine — support removal in PEEK and similar materials requires manual post-processing, which can be challenging for complex geometries. Throughput for production volumes For production volumes above a few hundred parts per month in engineering materials, the economics shift. Industrial machines have larger build volumes, faster throughput, and are designed for sustained operation. If you need thousands of PEEK parts per month, multiple HT90s or a dedicated industrial machine becomes the right answer. Material availability from the manufacturer Stratasys and Markforged machines use proprietary filament — you buy their validated materials. This is a cost and flexibility limitation, but it also means the material-to-machine combination has been validated. The HT90 uses open materials, which is an advantage for material selection and cost, but puts the validation burden on the operator. The Economics: A Realistic Comparison Bureau printing (PEEK) Stratasys Fortus 450mc Prusa Pro HT90 Capital cost €0 ~€120,000 ~€7,000–9,000 Per-part cost (small bracket) €80–300+ €5–30 (filament cost) €5–30 (filament cost) Lead time 3–10 days Hours Hours IP exposure High (files sent externally) None None Material range Extensive (whatever bureau stocks) Extensive (proprietary) Extensive (open materials) Breakeven vs bureau — ~400–600 parts ~30–50 parts The breakeven calculation is the most important number in this table. If you are currently sending PEEK parts to a bureau at €150 per part and you print 30 parts per year, an HT90 at €8,000 pays for itself in year one. If you print 200 parts per year, the payback period is measured in months. Decision Framework The HT90 is the right choice if: Your primary need is prototype iteration and functional testing in PEEK, PEKK, PA-CF, or similar engineering materials You are currently using bureau printing services and the per-part cost is significant relative to the machine price Your production volumes are low to medium (tens to low hundreds of parts per month) IP protection is important — you don't want to send part geometries to a third party You are a research or educational institution that needs engineering polymer capability You need the large build volume (Ø300 × 400mm) for tall or large-format parts An industrial machine may be the right choice if: You need validated, documented process capability for regulated end-use production (ISO 13485, AS9100) Your parts require complex internal geometries that need soluble support materials Production volumes are high enough that the per-part economics of an industrial machine justify the capital cost You need manufacturer-supported, certified material-to-machine combinations for compliance purposes Our Recommendation For the majority of engineering teams, R&D labs, medical device companies, and professional users considering entering high-performance polymer printing, the HT90 represents the most sensible starting point. It delivers the capability that matters — 90°C chamber, 500°C nozzle, HEPA filtration, large build volume — at a price that does not require a capital investment committee approval. You can validate whether in-house PEEK printing works for your process, learn the material, and build operational knowledge, with the option to scale to industrial machines if and when volumes justify it. The alternative — committing €80,000–€150,000 to an industrial machine before you've validated in-house engineering polymer printing as a workflow — carries far more risk. View the Prusa Pro HT90 The Prusa Pro HT90 is available from Eolas Prints — authorised Prusa resellers based in Cantabria, Spain. EU warranty and support included. Questions about whether the HT90 is right for your specific application? Contact us directly — we're happy to discuss your use case before you commit. The Full Series Part 1: What the HT90 Is and Who It's For Part 2: High-Temperature Filament Guide — PEEK, PEKK, PA-CF Part 3: Settings, Materials, and Practical Tips