Three brands dominate the serious desktop 3D printing conversation today: Bambu Lab, Prusa, and Flashforge. We stock all three at Eolas Prints, so this comparison isn't about crowning one winner — each genuinely excels at different things. It's about matching the brand to what you value: ecosystem polish, openness and repairability, or capability per euro. Here's an honest breakdown.
The Short Version
Bambu Lab — the most polished, plug-and-play ecosystem, with the most refined multi-colour (AMS) experience. Best if you want it to just work out of the box.
Prusa — open-source, endlessly repairable, EU-made, with legendary longevity and an upgrade path. Best if you value openness, serviceability, and a machine you can maintain for years.
Flashforge — the value-and-capability choice: CoreXY speed, enclosures, multi-colour, and large-format options at noticeably lower prices. Best if you want the most printer for your budget.
Bambu Lab: Polish and Ecosystem
Bambu Lab earned its reputation by making fast, reliable CoreXY printing genuinely plug-and-play. The P1S sets up in around 15 minutes, prints quickly and cleanly, and its AMS multi-colour system is the most refined of its kind. The software and hardware are tightly integrated and well-polished. The trade-offs: it's a more closed ecosystem, and single-nozzle multi-colour (AMS) produces purge waste. If you want the smoothest possible turnkey experience and a top multi-colour system, Bambu is hard to beat. We supply genuine, 100% original Bambu Lab products. Explore the Bambu Lab range.
Prusa: Open, Repairable, Built to Last
Prusa takes the opposite philosophy: open-source, designed to be repaired and upgraded, and manufactured in the EU. The Core One is its fully-assembled enclosed CoreXY machine with active chamber temperature control and a genuine upgrade path (MK4S owners can even convert). Prusa's strengths are longevity, serviceability, documentation, and resale value — these machines stay useful and maintainable for many years. As an authorised Prusa reseller, we supply Prusa machines with full warranty and EU support. Explore the Prusa range or read our Prusa buyer's guide.
Flashforge: Capability Per Euro
Flashforge's pitch is straightforward: the same modern CoreXY speed, enclosures, multi-colour, and large-format capability as the premium brands — usually at a lower price. A few examples from the range:
The Adventurer 5M Pro offers enclosed, filtered, 600 mm/s printing at the affordable end.
The Creator 5 uses a four-toolhead FlashSwap changer that produces near-zero purge waste — a genuinely different approach to multi-colour than AMS-style single-nozzle systems.
The Guider 3 Ultra delivers a 330×330×600 mm industrial build volume that the others in this comparison simply don't offer at the desktop level.
The trade-off is that Flashforge's ecosystem and community are smaller than Bambu's, and it isn't open-source like Prusa. But on raw capability for the money — especially for enclosures, large format, and zero-waste multi-colour — Flashforge is consistently the value leader. As an authorised Flashforge distributor, we supply the full range with warranty and EU support.
Side by Side
Flashforge
Bambu Lab
Prusa
Core strength
Value & capability
Polish & ecosystem
Openness & longevity
Multi-colour
FlashSwap (near-zero waste) or IFS
AMS (most refined)
MMU3
Large format
Yes (Guider 3 Ultra 600 mm Z)
Limited
XL (separate platform)
Open-source
No (open slicer)
No
Yes
Ecosystem size
Growing
Largest
Large, mature
Made in EU
No
No
Yes
Our status
Authorised distributor
Genuine, 100% original
Authorised reseller
Typical price
Lowest for capability
Mid
Higher
So Which Should You Buy?
Buy Flashforge if you want the most capability for your money — enclosed printing, large format, or efficient multi-colour without the premium price. Buy Bambu Lab if you want the most polished, hands-off experience and the smoothest multi-colour. Buy Prusa if you value open-source, repairability, EU manufacturing, and a machine that lasts and upgrades for years. There's no wrong answer — only the right fit for your priorities.
Buy from Eolas Prints
We stock all three brands and ship from Spain across the EU. As an authorised Flashforge distributor and authorised Prusa reseller — and a supplier of genuine, 100% original Bambu Lab products — we can give you straight, brand-neutral advice. Compare the full ranges: Flashforge, Bambu Lab, Prusa. Not sure? Contact us and tell us what you print.
The Prusa Core One and Bambu Lab's P1S and P2S are the machines most people cross-shop when they want a fully enclosed CoreXY printer in the mid range. All three are enclosed, fast, and capable of ABS and ASA. We stock both brands, so this is a straight comparison rather than a pitch — the right answer genuinely depends on what you value.
Head to Head
Prusa Core One
Bambu P1S
Bambu P2S
Motion
CoreXY enclosed
CoreXY enclosed
CoreXY enclosed
Build volume
250×220×270 mm
256×256×256 mm
256×256×256 mm
Chamber
Active, up to 55 °C
Passive
Passive (Adaptive Airflow)
Nozzle temp
290 °C
300 °C
300 °C
Multi-colour
MMU3 (single nozzle)
AMS (up to 16)
AMS 2 Pro (up to 16)
Firmware
Open source
Closed
Closed
Made in
EU (Czech Republic)
China
China
Format
Kit or assembled
Assembled
Assembled
Where Prusa Leads: Openness, Repairability, EU Support
The Core One's defining strengths are its active chamber heating (up to 55 °C, versus the passive enclosures of the P1S and P2S), its open-source firmware and ecosystem, and its EU manufacturing with genuine local support and spares. Active chamber control matters for larger ABS, ASA, and PC parts where passive enclosures can struggle as prints grow tall. The open platform means no vendor lock-in, full control over your slicer and firmware, and a repair/upgrade path that can extend the machine's life for years — Prusa's whole philosophy is a printer you maintain rather than replace. For buyers who value data privacy or want to avoid cloud dependence, this is decisive.
Where Bambu Leads: Multi-Colour, Speed, Polish
Bambu's strengths are a more mature multi-colour system (the AMS, up to 16 colours, is more polished than Prusa's MMU3), a slightly larger and symmetrical build volume (256×256×256 mm), a higher 300 °C nozzle, and an out-of-the-box experience that's hard to beat. The P1S is the proven, value-focused workhorse; the P2S is its modern refresh with a touchscreen, quick-swap nozzle, servo extruder, and H-series AI error detection. If multi-colour printing is central to your work, or you want the smoothest setup and the strongest app ecosystem, Bambu has the edge. The trade-offs are a closed platform and cloud-oriented workflow.
The Honest Summary
Choose the Prusa Core One if: you value active chamber heating for engineering materials, open-source firmware, no cloud dependence, EU support and spares, and a repairable, upgradeable machine you'll keep for years.
Choose the Bambu P1S if: you want the most proven enclosed workhorse at the best price, with mature multi-colour via the AMS, and you're comfortable with a closed ecosystem.
Choose the Bambu P2S if: you want that same ecosystem with the latest touchscreen, quick-swap nozzle, and smart monitoring.
It often comes down to philosophy: Prusa for openness, repairability, and EU support; Bambu for multi-colour and turnkey polish. Both are excellent — there's no wrong answer, only the one that fits how you work.
Available from Eolas Prints
We stock both brands, shipped from Spain. The Prusa Core One comes with the advantage that we're an authorised Prusa reseller — full manufacturer warranty, genuine spares, and EU support. We also supply genuine, 100% original Bambu Lab printers. Not sure which way to go? Contact us — we'll give you a straight answer based on your materials and workflow. You can also read our complete Prusa buyer's guide.
The AMS — Automatic Material System — is the feature that made Bambu Lab famous for effortless multi-colour printing. It is genuinely impressive: load up to four spools, and the printer switches between them automatically mid-print. But multi-colour printing has a real cost in wasted filament that many buyers do not understand until they see their first purge tower. This guide explains how the AMS works, what it costs to run, and how to minimise the waste.
How the AMS Works
The AMS holds up to four filament spools and feeds them to the printer on demand. When a print calls for a colour change, the system retracts the current filament, loads the next, and resumes. There are two versions in the current range:
AMS Lite: Used with the open-frame A1 and A2L. Four spools sit on an external rack and feed into the single nozzle. Up to 4 colours.
AMS 2 Pro: Used with the enclosed and active-chamber machines (P2S, X2D, H2S, H2D). An enclosed unit that also actively dries filament, and can be daisy-chained for many more colours.
For larger colour counts, multiple AMS units can be linked — Bambu machines support up to 16 colours (and some configurations more) by chaining units together.
The Hidden Cost: Purge Waste
Here is what every multi-colour buyer needs to understand. Because a single nozzle handles all the colours, every colour change requires purging the old colour out of the nozzle before the new one prints clean. That purged filament has to go somewhere — usually into a 'purge tower' printed alongside your model, or flushed as waste.
On a complex multi-colour print, this purge waste can consume 15–25% of your total filament and print time. A model that uses 30g of visible filament might consume an extra 40–60g in purging across many colour changes. This is not a flaw in the AMS specifically — it is inherent to single-nozzle multi-colour printing across the whole industry — but it is a real running cost that affects the economics of multi-colour work.
How to Reduce Purge Waste
Minimise colour changes per layer. Designs where colours are grouped by height (one colour finishes before the next begins) purge far less than designs that alternate colours every layer.
Use 'flush into object infill' and 'flush into support' options in Bambu Studio, which redirect some purged material into parts of the print that are hidden, rather than wasting it entirely.
Tune flushing volumes. Bambu Studio lets you adjust how much is purged between specific colour pairs. Light-to-dark transitions need more purging than dark-to-light; tuning these saves material.
Consider a dual-nozzle machine for support-heavy work. The X2D and H2D dedicate a second nozzle to support material, eliminating purge waste between part and support entirely.
The AMS Also Dries Your Filament
The AMS 2 Pro does more than switch colours — it actively dries filament, which is a significant benefit independent of multi-colour printing. Hygroscopic filaments like PETG, TPU, PA (Nylon), and PC absorb moisture from the air and print poorly when wet, causing stringing, bubbling, and weak layers. The AMS 2 Pro's active venting and drying keeps filament dry during storage and printing — Bambu states it dries up to 30% faster than sealed heating. For anyone printing engineering materials, this is a real reliability advantage.
Which Filament Works Best in the AMS
The AMS handles standard filaments — PLA, PETG, ABS, ASA, TPU — reliably. A few practical notes:
PLA and PETG are the easiest and most reliable in the AMS, ideal for multi-colour work.
TPU (flexible) can be challenging in the AMS Lite due to its flexibility in the feed path; firmer TPU variants (higher Shore rating) feed more reliably.
Cardboard-spool filament wound cleanly and consistently feeds best — tangles and uneven winding cause AMS feed errors. This is one reason consistent spool quality matters for multi-colour printing.
Eolas Prints manufactures PLA, PETG, TPU, ABS, and ASA filament in Spain wound for consistent feeding, certified to ISO and REACH standards — all compatible with the Bambu AMS.
Is Multi-Colour Worth It?
For decorative prints, signage, models, and gifts, multi-colour printing adds real value and the purge cost is acceptable. For functional engineering parts, multi-colour is rarely needed — and where multiple materials are required (rigid plus flexible, or dissolvable supports), a dual-nozzle machine like the X2D or H2D is more efficient than AMS purging. Match the approach to the work.
Available from Eolas Prints
Eolas Prints sells genuine, 100% original Bambu Lab printers, shipped from Cantabria, Spain. We stock Bambu printers, AMS units, and manufacture our own filament range — all shipping across Europe. Contact us for advice on building a multi-colour or multi-material workflow.
The H2D and H2S are Bambu Lab's flagship machines — the H-series — built for professionals, engineers, and serious makers who need large build volumes, high-temperature capability, and the stability to print demanding engineering materials. Both have a 350°C nozzle and a 65°C actively heated chamber. The decision between them comes down to one fundamental question: do you need two nozzles, or do you need the absolute largest single-nozzle build volume? This guide makes that choice clear.
What the H-Series Has in Common
Both machines share the capabilities that define the tier: a 350°C hotend (versus 300°C on the rest of the Bambu range), a 65°C actively heated chamber, a hardened steel nozzle for abrasive carbon- and glass-fibre filaments, servo-driven extrusion with real-time monitoring, and support for the full range of engineering materials — PA, PC, PPA-CF, PPS, and fibre-reinforced composites. Both reach 1000 mm/s. Both are large-format machines built around the same chassis. If your work involves engineering-grade filaments, either machine is capable; the difference is in architecture.
Side by Side
Bambu Lab H2S
Bambu Lab H2D
Nozzles
Single
Dual independent
Build volume (single nozzle)
340×320×340 mm
325×320×325 mm
Build volume (dual nozzle)
—
300×320×325 mm
Max nozzle temp
350°C
350°C
Chamber
Active 65°C
Active 65°C
Max speed
1000 mm/s
1000 mm/s
Laser / cutting modules
Optional (10W)
Optional (10W / 40W)
Best for
Largest single-piece prints
Dual-material, multi-process manufacturing
The H2S: The Largest Build Volume Bambu Makes
The H2S has a single 350°C nozzle and the biggest build volume in the entire Bambu range — 340×320×340 mm. Because it has only one nozzle, the full bed is always available; there is no shared-area compromise. This makes it the right machine when your priority is printing large parts in one piece: cosplay armour, fixtures, jigs, enclosures, RC fuselages, and multi-part assemblies that would otherwise need splitting and joining. It still handles multi-colour printing through the AMS 2 Pro. For most large-format engineering work, the H2S delivers the capability at a lower price than the H2D.
The H2D: Dual Nozzles and Multi-Process Manufacturing
The H2D is the flagship. Its two independent 350°C nozzles enable true dual-material printing — two different materials, or two colours, processed simultaneously without the purge waste of single-nozzle multi-colour systems. This is ideal for parts combining rigid and flexible materials, or for soluble support interfaces on complex engineering geometry. The dual-nozzle build volume is 300×320×325 mm (single-nozzle mode gives 325×320×325 mm).
Beyond printing, the H2D can be equipped with optional laser engraving and cutting modules (10W or 40W) and a pen-plotting module, turning it into a complete desktop manufacturing platform — print a part, then laser-engrave or cut components on the same machine. For a workshop that wants 3D printing, laser work, and cutting in one device, the H2D is unique in the Bambu range.
Which Should You Buy?
Choose the H2S if: your priority is the largest possible single-piece build volume, you print engineering materials, and you do not need two nozzles. It gives you the most printable space for the money and is the better value for pure large-format printing.
Choose the H2D if: you need dual-material printing (rigid + flexible, or soluble supports), or you want laser engraving, cutting, and plotting integrated into the same machine. It is the multi-process flagship for a complete manufacturing workflow.
For dual-material work in a more compact, lower-cost package, also consider the X2D — it offers dual nozzles in a smaller 256×256×260 mm format with a 300°C nozzle.
Available from Eolas Prints
Eolas Prints sells genuine, 100% original Bambu Lab printers, shipped from Cantabria, Spain. Both the H2S and H2D are in stock and ship across Europe with EU warranty and professional support. We also offer installation and training for professional and B2B customers. Pricing is on each product page. Contact us to discuss your application.
Once you have decided you need an enclosed Bambu Lab printer — because PLA and PETG alone are not enough and you want to print ABS, ASA, or engineering materials — three machines are in play: the P1S, the P2S, and the X2D. They occupy a similar footprint and price territory but differ in two decisive ways: whether the chamber is actively heated, and whether there are one or two nozzles. Getting this choice right matters, because the gap between them is exactly the gap between hobbyist and engineering-grade printing.
The Two Questions That Separate Them
Passive vs active chamber. The P1S and P2S are passively enclosed — the box traps heat radiating from the heated bed, which raises the chamber temperature somewhat but does not control it. The X2D has an actively heated chamber holding a stable 65°C. Active heating is what lets you reliably print warp-prone engineering materials like PA-CF and PC; passive enclosures handle ABS and ASA well but struggle with the most demanding filaments, especially on tall parts.
Single vs dual nozzle. The P1S and P2S have one nozzle. The X2D has two — a main nozzle for the part and an auxiliary nozzle dedicated to support material. This is the X2D's signature capability and changes what is practical on complex geometry.
Side by Side
P1S
P2S
X2D
Chamber
Passive enclosed
Passive (Adaptive Airflow)
Active 65°C heated
Nozzles
Single
Single
Dual (main + auxiliary)
Build volume
256×256×256 mm
256×256×256 mm
256×256×260 mm
Max nozzle temp
300°C
300°C
300°C
Interface
Button + LCD
5-inch touchscreen
5-inch touchscreen
Nozzle swap
Tools required
Quick-swap (1-click)
Quick-swap
Extruder
Standard
Servo (DynaSense)
PMSM servo
Best for
Value, print farms
All-round enclosed
Multi-material, clean supports
The P1S: The Proven Workhorse
The P1S earned its reputation as the backbone of print farms worldwide. It is reliable, fast (500 mm/s), and enclosed, handling PLA, PETG, ABS, and ASA. The trade-offs versus the newer machines are a basic button-and-LCD interface and a nozzle change that requires tools. If your priority is proven reliability at the lowest price, and you do not mind the older interface, it remains an excellent buy.
The P2S: The Best All-Round Choice
The P2S is the P1S completely reengineered. Same enclosed format and material range, but with a 5-inch touchscreen, a one-click quick-swap nozzle, a servo-driven extruder with real-time monitoring, Adaptive Airflow for better chamber stability, and AI error detection from the H-series. For most buyers who want an enclosed printer, the P2S is the right machine — it is the modern, refined version of the most popular enclosed printer Bambu has made. Note it still has a passive chamber; for true engineering materials at scale you want active heating.
The X2D: The Engineering and Multi-Material Choice
The X2D is a different class of machine despite the similar size. Its actively heated 65°C chamber lets it print engineering materials the P-series struggles with, and its dual-nozzle system dedicates one nozzle to the part and another to support material. This means supports in PVA, BVOH, or HIPS that dissolve away or peel off cleanly, leaving surfaces that would otherwise need manual finishing. For anyone printing complex functional parts — especially with overhangs, internal channels, or mixed rigid-and-flexible designs — the X2D solves problems the single-nozzle machines cannot. It is the successor to the discontinued X1 Carbon.
Which Should You Buy?
P1S — you want a reliable enclosed printer at the best price, mostly for PLA, PETG, ABS, and ASA, and the older interface does not bother you.
P2S — you want the best all-round enclosed printer with a modern touchscreen, quick-swap nozzle, and smart monitoring. The right choice for the largest group of buyers.
X2D — you print engineering materials, complex geometry needing clean supports, or multi-material combinations, and want an actively heated chamber. The step up to genuine engineering capability.
Available from Eolas Prints
Eolas Prints sells genuine, 100% original Bambu Lab printers, shipped from Cantabria, Spain. The P1S, P2S, and X2D are all in stock and ship across Europe with EU warranty. Pricing is on each product page. Contact us for advice on your specific materials and workflow.
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.
Bambu Lab now offers seven distinct 3D printers, and they are genuinely different machines — not minor variations on a theme. The difference between the cheapest and the most capable is not just speed or size; it is what materials they can physically print. Choosing the wrong one means either overpaying for capability you will never use, or buying a machine that cannot run the filament your project needs. This guide maps the entire range so you can match a printer to your actual work.
The Single Question That Decides Everything: Open or Enclosed?
Every Bambu Lab printer falls into one of three structural categories, and this is the first and most important fork in the decision:
Open-frame (A1, A2L): No enclosure. Ideal for PLA, PETG, and TPU. Cannot reliably print ABS, ASA, or engineering materials because there is no way to control the air temperature around the print.
Passively enclosed (P1S, P2S): A closed box that traps heat from the bed. Handles ABS and ASA in addition to PLA and PETG. The chamber is warmed by the bed but not actively heated.
Actively heated chamber (X2D, H2S, H2D): A chamber with its own heater holding a stable 65°C. This is what high-performance engineering materials — PA-CF, PC, PPA — need to print without warping or delaminating.
If your materials are PLA and PETG, an open-frame machine will serve you perfectly and save you money. If you need ABS occasionally, you want an enclosure. If engineering materials are central to your work, you need an actively heated chamber. Everything else follows from this.
The Full Range at a Glance
Printer
Type
Build volume
Max nozzle
Chamber
Best for
A1
Open frame
256×256×256 mm
300°C
None
Beginners, PLA/PETG, multi-colour with AMS Lite
A2L
Open frame
330×320×325 mm
300°C
None
Large PLA/PETG prints, craft cutting and drawing
P1S
Enclosed (passive)
256×256×256 mm
300°C
Passive
Proven workhorse, ABS/ASA capable, print farms
P2S
Enclosed (passive)
256×256×256 mm
300°C
Passive (Adaptive Airflow)
Refined P-series, touchscreen, quick-swap nozzle
X2D
Active chamber
256×256×260 mm
300°C
Active 65°C
Dual-nozzle, clean supports, compact engineering
H2S
Active chamber
340×320×340 mm
350°C
Active 65°C
Largest volume, single nozzle, engineering parts
H2D
Active chamber
350×320×325 mm
350°C
Active 65°C
Dual independent nozzle, optional laser/cutting
The Open-Frame Tier: A1 and A2L
Both are bed-slinger machines with no enclosure, designed for PLA, PETG, and TPU. They share the AMS Lite multi-colour system and a 300°C nozzle.
The A1 is the entry point — a 256×256×256 mm build volume, 100°C bed, and one of the quietest printers available at under 48 dB. It is the best first 3D printer for most people: reliable, fully auto-calibrating, and capable of multi-colour printing with the AMS Lite.
The A2L is the new large-format sibling (launched June 2026), with a 330×320×325 mm build volume — 105% larger than the A1. It adds a PMSM closed-loop servo extruder and adaptive vibration compensation for cleaner tall prints, plus a unique feature in the Bambu range: optional cutting and pen modules that turn it into a vinyl cutter and plotter for stickers, paper, and fabric. Note its bed maxes at 80°C (lower than the A1's 100°C), a deliberate choice for the larger open-frame design — it remains a PLA/PETG/TPU machine, not for engineering materials.
The Enclosed Tier: P1S and P2S
Both are fully enclosed CoreXY machines in the same 256×256×256 mm format, capable of ABS and ASA in addition to PLA and PETG. The enclosure traps bed heat to stabilise the chamber, but neither has active chamber heating.
The P1S is the proven workhorse — the backbone of print farms worldwide, known for reliability at an accessible price. It uses a button-and-LCD interface and prints up to 500 mm/s.
The P2S is the 2025 refinement: a 5-inch colour touchscreen, a quick-swap nozzle system (change nozzles in under a minute), a new servo-driven extruder, Adaptive Airflow for better chamber stability, and AI error detection inherited from the H-series. Bambu kept both in the range — the P2S is the better machine, the P1S remains the value option.
The Active-Chamber Tier: X2D, H2S, H2D
These three share a 65°C actively heated chamber — the prerequisite for printing engineering materials like PA-CF and PC reliably at any size. Beyond that they diverge significantly.
The X2D is the compact engineering machine (256×256×260 mm) and the only one of the three with a 300°C nozzle rather than 350°C. Its distinguishing feature is a dual-nozzle system — a main nozzle for the part and an auxiliary nozzle for support material — which produces clean, easily removed supports using PVA or BVOH. It is the successor to the discontinued X1 Carbon.
The H2S has the largest build volume in the entire Bambu range at 340×320×340 mm, a single 350°C nozzle, and a servo extruder. It is the choice when you need to print large engineering parts in one piece.
The H2D is the flagship: dual independent 350°C nozzles, a 350×320×325 mm build volume, and the option to add laser engraving, cutting, and pen-plotting modules — making it a complete desktop manufacturing platform rather than just a printer.
Recommendations by User
First 3D printer, mostly PLA: A1 (or A1 Combo for multi-colour)
Large decorative or cosplay prints, plus craft cutting: A2L
First enclosed printer for occasional ABS, on a budget: P1S
Best all-round enclosed printer for most buyers: P2S
Multi-material with clean dissolvable supports, compact: X2D
Large engineering parts in one piece: H2S
Flagship — dual-material engineering plus laser/cutting: H2D
Available from Eolas Prints
Eolas Prints sells genuine, 100% original Bambu Lab printers, shipped from Cantabria, Spain, to customers across Europe and worldwide. Every printer in this guide is in stock with EU warranty and local technical support. Current pricing is on each product page linked above. Not sure which machine fits your materials and workflow? Contact us — we advise before you buy.
Bambu Lab printers are the easiest FDM machines to get started with — but like all FDM printers, they benefit from proper calibration. The good news is that Bambu Studio (and OrcaSlicer, the community-developed alternative) includes built-in calibration tools that make the process far simpler than on traditional printers. No G-code commands, no manual calculations.This guide covers every calibration step in Bambu Studio in the order you should run them: from first layer setup to flow rate to pressure advance. Run through these once when you first set up a new filament, and your prints will be consistently excellent.Before You Start: Load the Correct Filament ProfileBambu Studio includes filament profiles for Eolas Prints filaments. In the Prepare tab, click the filament dropdown and search for Eolas Prints. Select your material. These profiles are pre-tuned starting points — calibration refines them further for your specific printer and environment.If you cannot find an Eolas Prints profile, use the closest generic profile (e.g. Generic PLA for our PLA 1.75mm) and calibrate from there.Step 1: First Layer CalibrationThe first layer is the foundation of every print. If it's wrong, nothing else you calibrate will fully compensate.Using the Live Z-Offset AdjustmentOn Bambu Lab printers, Z-offset is called Nozzle Offset Z and is adjusted during the first layer of a real print or a calibration print.
Start a print (or the built-in first layer calibration: Calibration → First Layer Calibration in Bambu Studio).
Watch the first layer deposit. The filament lines should be slightly squished onto the bed — visible as slightly flattened lines that merge together. If the lines are round and separated (like a wire sitting on top of the bed), the nozzle is too high.
During printing, use the Live Adjust Z option on the printer screen or in the Bambu Handy app to move the nozzle closer or further from the bed in real time. Adjust in increments of 0.05mm.
The correct Z-offset produces lines that are ~80% of their original circular width — visibly squished but not so flat that they spread excessively.
What Good vs Bad First Layers Look Like
Appearance
Diagnosis
Fix
Lines are round, gaps between them
Nozzle too far from bed
Lower Z-offset (move nozzle closer)
Lines squished flat, bleeding into each other
Nozzle too close
Raise Z-offset (move nozzle further)
Gaps at corners, lifting edges
Bed adhesion problem, not Z-offset
Clean bed with IPA, check bed temperature
Slightly flattened lines touching but not bleeding
Correct
No adjustment needed
Step 2: Flow Rate CalibrationFlow rate (also called extrusion multiplier) controls how much filament is deposited per unit of movement. Even small deviations cause over- or under-extrusion that affects dimensional accuracy, surface quality, and part strength.Running the Flow Rate Calibration in Bambu Studio
In Bambu Studio, go to Calibration → Flow Rate.
Select your printer and filament profile.
Print the calibration model. It prints a series of squares or lines at different flow rate values, labelled with the percentage offset applied.
Examine the results. Look for the sample that shows the smoothest surface with no gaps (under-extrusion) and no raised ridges or excess material at corners (over-extrusion).
Enter the winning percentage in your filament profile: Filament → Advanced → Flow ratio. If the default is 1.0 and the best sample was at +5%, set flow ratio to 1.05.
How to Read Flow Rate Results
Surface looks rough or grainy with gaps between lines: Under-extrusion — increase flow rate
Surface has raised ridges, excess material at corners, or is bubbly: Over-extrusion — reduce flow rate
Smooth, uniform surface with no excess material: Correct flow rate
Typical correct flow rates for Eolas Prints filaments are within ±5% of 1.0. If your calibration produces a result outside this range, check for a partial clog before accepting the value.Step 3: Pressure Advance CalibrationPressure advance (called Linear Advance in Marlin firmware) compensates for the lag between the extruder motor moving and the actual change in nozzle pressure. Without it, corners tend to over-extrude as the nozzle decelerates, and the filament takes a fraction of a second to stop flowing after the move ends.Bambu Lab printers use a proprietary implementation of pressure advance that is pre-set per material — but calibrating it for your specific filament and environment improves corner sharpness and reduces blobs significantly.Running Pressure Advance Calibration in OrcaSlicerOrcaSlicer (the community-developed Bambu-compatible slicer) has the most accessible pressure advance calibration interface. If you are using Bambu Studio, the equivalent is in Calibration → Pressure Advance.
Open OrcaSlicer (or Bambu Studio) and navigate to Calibration → Pressure Advance.
Print the calibration pattern. It produces a series of lines or a tower printed at varying pressure advance values.
Look for the line or segment with the sharpest corners and smoothest surface. Sharp, clean corners with no blobs indicate the correct value.
Enter the value in your filament profile: Filament → Advanced → Pressure advance.
Typical Pressure Advance Values by Material
Material
Typical range
Notes
PLA
0.02 – 0.06
Standard starting point: 0.04
High Speed PLA
0.01 – 0.04
Lower than standard PLA due to formulation
PETG
0.04 – 0.08
More viscous than PLA; higher PA value
TPU 93A
0.1 – 0.2
Flexible filament requires significantly higher PA
ABS
0.03 – 0.06
Similar to PLA
ASA
0.03 – 0.07
Similar to ABS
Step 4: Temperature CalibrationUnlike traditional printers where temperature towers require manual G-code editing, Bambu Studio and OrcaSlicer automate this entirely.
Go to Calibration → Temperature.
Set the temperature range to test. For PLA: 190–220°C. For PETG: 225–245°C. For ABS: 230–250°C.
Print the temperature tower. Each section prints at a different temperature, labelled on the part.
Examine: look for the section with the best bridging, sharpest overhangs, and smoothest surface without stringing.
Set that temperature as the default in your filament profile.
The Eolas Prints filament profiles in Bambu Studio already include optimised temperature ranges. Temperature calibration is most useful when you're using a custom or generic profile, or when trying to push maximum speed.Step 5: Max Volumetric SpeedMaximum volumetric speed (MVS) is the real limit of how fast your printer can extrude — more useful than print speed in mm/s, which ignores nozzle diameter and layer height.If you push print speed beyond your MVS, the result is under-extrusion: gaps, weak layers, and poor surface quality even though the head is moving fast.
In OrcaSlicer, go to Calibration → Max Volumetric Speed.
Print the calibration model. It prints at progressively faster volumetric speeds until under-extrusion appears.
Find the point where quality degrades and set your filament profile's MVS to 90% of that value for reliable printing.
Typical MVS values by material (0.4mm nozzle)
Material
Typical MVS
PLA (standard)
12–18 mm³/s
High Speed PLA
20–30 mm³/s
PETG
8–14 mm³/s
TPU 93A
2–5 mm³/s
ABS
10–16 mm³/s
ASA
8–14 mm³/s
Step 6: Input Shaping (Resonance Compensation)Input shaping compensates for the mechanical resonance of the printer frame — the vibrations caused when the print head changes direction rapidly. Without it, fast prints show ghosting: wave-like artefacts on the surface adjacent to features like holes and walls.Bambu Lab printers run input shaping calibration automatically as part of their startup routine. You do not need to run this manually unless you notice ghosting after a hardware change (e.g. replacing the carbon rods, adding a camera, or modifying the AMS).To re-run: on the printer touchscreen, go to Settings → Calibration → Vibration Compensation and run the calibration. The printer will run a series of short test moves and update its compensation parameters automatically.Step 7: Save Your Calibrated ProfileOnce calibrated, save everything as a named filament preset so you don't need to redo it each session.
In Bambu Studio or OrcaSlicer, open your filament profile.
Set the calibrated values: temperature, flow rate, pressure advance, MVS.
Click Save as and name it descriptively — e.g. "Eolas PLA 1.75mm Black — Calibrated" or "Eolas PETG — P1S Calibrated".
This preset will appear in your filament dropdown for all future prints on this material.
Calibration Order Summary
Step
What it fixes
When to run
1. First Layer / Z-Offset
Bed adhesion, elephant foot, gaps in first layer
Every new printer setup, any bed change
2. Flow Rate
Dimensional accuracy, surface quality, strength
Each new filament type or brand
3. Pressure Advance
Corner blobs, stringing, ghosting
Each new filament, after speed changes
4. Temperature Tower
Layer adhesion, stringing, surface quality
New filament profiles or generic profiles
5. Max Volumetric Speed
Under-extrusion at high speeds
When pushing speed limits
6. Input Shaping
Ghosting / ringing artefacts
After hardware changes only (auto on startup)
Related guides: Temperature Tower | Flow Test | Retraction Test | Extruder CalibrationUsing Eolas Prints filaments? All our filaments are available as named profiles in Bambu Studio. Search Eolas Prints in the filament selector. If you need help dialling in settings for a specific material, contact our technical support team.
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