Bambu Lab P1S Review — The Workhorse That Just Prints

The Bambu Lab P1S sits in a strange sweet spot. It is not the cheapest Bambu printer — that is the A1 Mini. It is not the most capable — that is the X1C. But it might be the one most people should actually buy. The P1S is what happens when a company takes a proven platform and wraps it in an enclosure without doubling the price.

After extensive community feedback and months of real-world use data, here is where the P1S actually stands in 2026.

Specs at a Glance

| Specification | Bambu Lab P1S | |--------------|--------------| | Build volume | 256 x 256 x 256 mm | | Max print speed | 500 mm/s | | Max acceleration | 20,000 mm/s² | | Layer resolution | 50 microns minimum | | Nozzle | 0.4mm hardened steel | | Extruder | Direct drive | | Bed leveling | Automatic (force sensor) | | Filament sensor | Yes | | Power recovery | Yes | | Frame | Enclosed (polycarbonate panels) | | Connectivity | Wi-Fi, microSD | | Camera | Yes (720p) | | Slicer | Bambu Studio / OrcaSlicer | | Price | ~$599 (printer only) / ~$899 (Combo with AMS) |

Print Quality

The P1S produces excellent prints out of the box. PLA, PETG, and TPU all come out clean with default Bambu Studio profiles. The quality is essentially identical to the X1C for most materials because they share the same motion system and extruder.

Where the P1S particularly shines is dimensional accuracy. Parts that need to fit together — enclosures, snap-fits, threaded components — come out right the first time. The automatic bed leveling and vibration compensation handle most of the heavy lifting so you rarely need to fiddle with settings.

ABS and ASA printing is where the enclosure earns its keep. The P1S handles these materials without warping or cracking in most cases, which is something open-frame printers struggle with unless you build a DIY enclosure.

Speed

Bambu advertises 500 mm/s, but real-world prints typically run at 200-300 mm/s with the default profiles. That is still fast. A Benchy prints in about 17-18 minutes, and functional parts that took 4 hours on an Ender 3 finish in under 90 minutes.

The acceleration is the real story. At 20,000 mm/s², direction changes happen so quickly that print times drop dramatically even on complex geometry. Input shaping keeps ringing artifacts under control at these speeds.

The Enclosure — Genuine Advantage or Marketing?

Both. The enclosure genuinely helps with ABS, ASA, and nylon by maintaining a stable chamber temperature. It also cuts noise significantly — the P1S is noticeably quieter than the open-frame A1 at comparable speeds.

But the enclosure has a downside. PLA actually prints worse in a fully enclosed space because it can overheat, leading to stringing and poor overhangs. Most P1S owners learn to crack open the top lid or remove the front glass panel when printing PLA. Bambu has acknowledged this and the slicer now suggests opening the door for PLA, but it is still an extra step.

Noise

With the enclosure closed, the P1S is one of the quieter CoreXY printers available. It is not silent — you will hear the stepper motors and part cooling fan — but it is apartment-friendly. Running it overnight in the next room is perfectly reasonable.

With the door open (for PLA), it gets noticeably louder, closer to what you would expect from any fast printer.

Common Issues and Complaints

No printer is perfect. Here is what the community consistently reports:

The AMS is finicky. The Automatic Material System works well about 85% of the time, but filament jams, failed retractions, and color swap errors happen often enough to be annoying. PTFE tube routing matters, and some filament brands feed better than others. If you are buying the Combo specifically for multi-color, budget for some troubleshooting time.

Wi-Fi connectivity drops. Some users report intermittent disconnections. Running prints from microSD is more reliable, though less convenient.

The camera is low-quality. The 720p camera works for checking if a print failed, but it is grainy and the frame rate is low. It is a "good enough" feature, not a selling point.

No touchscreen. The P1S uses a small non-touch LCD. All interaction is through the slicer or Bambu Handy app. Coming from printers with touchscreens, this feels like a step back.

Proprietary ecosystem concerns. Bambu Studio is the default slicer, firmware updates are required periodically, and the RFID-tagged filament system (optional) rubs some users the wrong way. You can use OrcaSlicer and third-party filament without issues, but the ecosystem nudges you toward Bambu's way of doing things.

Pros and Cons

Pros:

• Exceptional print quality out of the box
• Fast — genuinely cuts print times by 50-70% vs older printers
• Enclosed for ABS/ASA without DIY modifications
• Quiet enough for home use
• Automatic calibration that actually works
• Built-in camera for remote monitoring
• Active community and frequent firmware updates

Cons:

• AMS reliability is inconsistent
• PLA needs the enclosure opened — counterintuitive for an enclosed printer
• No touchscreen
• Wi-Fi can be unreliable
• Camera quality is mediocre
• Proprietary tendencies in the ecosystem
• No ethernet port (X1C has one, P1S does not)

Who Is This Printer For?

The P1S is ideal for anyone who wants a fast, reliable printer that handles engineering materials without building a DIY enclosure. If you print a mix of PLA, PETG, and ABS regularly, the P1S handles all of them competently.

It is also a great choice if you want the Bambu experience without paying X1C prices. You give up the LIDAR scanner, the touchscreen, and ethernet, but the actual print quality is the same.

Skip the P1S if: you only print PLA (get the A1 instead — it is cheaper and handles PLA better in the open air), you need a large build volume (look at the P1S's 256mm cube versus alternatives), or you want a fully open-source experience (consider Prusa or Voron).

Value for Money

At $599, the P1S is arguably the best value enclosed CoreXY printer on the market. The Combo with AMS at $899 is a harder sell — the AMS adds multi-color capability but also adds a reliability variable. If you mostly print single-color functional parts, save the $300.

Compared to building a Voron 2.4 (similar performance, truly open-source, but requires 40+ hours of assembly and troubleshooting), the P1S is a no-brainer for anyone who values their time.

Optimal Print Settings

For detailed, material-specific settings optimized for the P1S, check out our Bambu Lab P1S settings guide. It covers PLA, PETG, ABS, TPU, and more with recommended temperatures, speeds, and retraction values.

Final Verdict

The Bambu Lab P1S does not try to be everything. It is a fast, enclosed printer that produces consistently good results with minimal tinkering. The compromises it makes — no touchscreen, mediocre camera, PLA quirks with the enclosure — are real but minor for most users.

If you want a printer that just works and you occasionally need to print ABS or ASA, the P1S is the one to get. It is not exciting. It is not flashy. It just prints well, and that is exactly what most people need.