In an ironic twist of fate-literally a “manual” mistake, Bambu Lab unintentionally revealed the existence of a brand-new 3D printer named H2S, not yet officially announced. The leak originated from technical documentation for the H2D’s cutter module, uploaded to the company’s official wiki. Buried within the instructions is a reference to the H2S, a previously unknown machine.

Based on what we know so far, the H2S-likely short for “H2 Single” appears to be a stripped-down sibling to the high-end H2D, equipped with a single extruder. Back in June, a blurry photo surfaced on X, teasing a new printer with the same footprint as the H2D, but clearly lacking the second nozzle. Now, a technical drawing included in the cutter’s manual confirms that speculation: the image shows a yellow rotating extruder nearly identical to that of the A1, aligning with the single-nozzle theory.

One key detail stands out in the leak: the build plate shows a height marker of “340mm”, suggesting a taller build volume than the H2D’s 325mm. Meanwhile, other components remain the same-such as the printhead camera and fan layout.

Bambu Lab H2S Leaked manual

Same strategy, new printer: will H2S follow the P1 model?

Bambu Lab is no stranger to releasing top-tier machines first, followed by leaner versions. After the flagship X1 Carbon came the more affordable P1P and P1S. Now, the same strategy might be repeating itself with the H2 series. Demand has been high for a large-format 3D printer that ditches pricey extras like the laser module or the smart AMS system.

Currently, the base H2D starts at € 1,899 in Europe, climbing well above € 2,300 in its full configuration. If the H2S enters the scene as a more affordable alternative-with fewer attachments and a single nozzle-it could fill a glaring gap in the 3D printing market: a large-format, essentials-only printer at a mid-range price point.

First clue: the blurry photo from X in June

The first hint of a new Bambu Lab model came back in June 2025, when a blurry image surfaced on the platform X, posted by @ToviDing and allegedly sourced from WeChat. The image revealed a 3D printer that looked nearly identical to the H2D, but with one obvious omission: the second extruder. Sharp-eyed enthusiasts immediately noticed familiar design cues-the yellow extruder wheel and clear shroud window-that matched the single-nozzle A1 printhead.


A closer look at the leaked photo also revealed something intriguing: a build height of “340mm” etched on the edge of the platform-suggesting it may surpass the H2D’s 325mm. While the photo quality left much to the imagination, many speculated this was a prototype for a budget-friendly H2D variant. Given Bambu Lab’s track record with the P1 line, this would make perfect sense. That June leak might have been our first look at the H2S-now seemingly confirmed via an accidental manual upload.

So far, no official announcement has been made by Bambu Lab. But if this leak proves real, we may be on the verge of seeing the most practical large-format 3D printer of 2025-one that ditches the frills and focuses on sheer print power.