Bambu Lab H3C: Our Full Reveal


Swaptek enables 6-second material switches between 9 nozzles. FlexFeed extruder prints soft TPU 75A up to three times faster. AMS 3H combines automated feeding and integrated filament storage.

This is Bambu Lab H3C, a complete system purpose-built around the Tool Changer architecture. Let’s dive into it!

SwapTek™: 6-second material switch, including a 3.4-second tool change.

Nine PrintTools, each with its own dedicated filament path and heater, keep every material loaded, preheated, and ready to print. No need to retract one filament before loading another. With an optimized design, fine-tuned parameters, and active preheating, switching between PrintTools takes as little as 6 seconds, with the tool-change done in only 3.4 seconds.

Heating a nozzle usually means waiting. Active Pre-Heat looks ahead to the next tool change and warms the incoming nozzle while the current one is still printing—so the new material starts laying down within 6 seconds.

Swaptek’s fast PrintTool-switching allows Full Spectrum Color Mixing color mixing through layered deposition faster and more practical than ever. With nine dedicated PrintTools and five-color CMYKW mixing, the H3C produces a vast spectrum of colors without requiring a separate spool for every shade. The result? Vibrant, full-color figurines with incredible detail.

Mixed Nozzle Sizes: Speed and detail, no more compromises.

The dial, case, and flexible TPU band are printed together as one piece. Fine dial details call for a 0.2 mm nozzle, the case is better suited to 0.4 mm, and the soft band requires a dedicated 0.4 mm TPU nozzle. H3C can carry different nozzle sizes at once. Paired with Bambu Studio’s new mixed-diameter toolpath planning algorithm, each nozzle prints at a layer height that suits it and plays to its strengths, without having to share a single layer height.

FlexFeed Extruder: Softer TPU, up to 3x faster.

Soft TPU has always been slow to print. The softer the filament, the more it bends and buckles before reaching the nozzle. Traditional extruders have to crawl to stay reliable. FlexFeed handles both 1.75mm and 2.85mm filament and switches on the go. A cam-driven mechanism, powered by a PMSM motor, keeps tension precise and consistent. Every extrusion stays rock-solid for prints that are cushion-soft.

With our dedicated 2.85mm TPU, the thicker filament provides greater resistance to buckling and higher volumetric flow. The result: TPU as soft as 75A, printed reliably at up to 3x the flow rate of a traditional printer.

AMS 3H: Filament storage built for Tool Changer.

A fully enclosed, integrated filament management system built for Swaptek: every roll stays sealed against moisture and feeds automatically into the PrintTool.

Auto Filament Loader replaces manual feeding altogether. Drop a filament into any of the nine slots and the AMS 3H detects, routes, and engages it with the PrintTool automatically — across all 9 paths. No more guesswork on loading.

A dedicated 2-slot dryer sits right in the filament slots and works with Swaptek — drying on demand or mid-print, so prep never stalls production. It reaches 85°C, enough for engineering-grade PA, PC, and carbon-fiber-filled filaments.

The H3C integrates filament storage and drying into a clean, compact design, maintaining a footprint comparable to a single-nozzle printer. With 7 built-in bypass feeding ports, even the soft TPU can be routed completely inside the enclosure. No hanging spools, no external racks, no exposed paths.


Don’t let the number of tools cap your material count. Connect your existing AMS to the H3C through PrintTool No.1, and the system extends to up to 24 filament spools, unlocking more colors and materials in a single print without changing your workflow.

You are here for the print, not (always) the printer.

With the H3C, automation handles routine tasks. AI detection helps make intelligent adjustments along the way. The H3C makes it easy to focus on what matters most: bringing your ideas to life

Full Auto Calibration handles PrintTool docking calibration, offset compensation for accurate color and material alignment, and bed leveling before every print. No manual adjustments are needed, so you can spend more time making, less time tinkering.

Flagship performance. No compromise.

The toolhead and X-axis assembly are 40% lighter compared to the H2D, reducing inertia for faster, more precise movement. With acceleration reaching 25,000 mm/s² and travel speeds up to 1,400 mm/s, the H3C delivers exceptional speed while minimizing vibrations and ringing that can affect print quality.

The H3C runs four cooling layers working together. A CFD-optimized part cooling fan and dual auxiliary fans help maintain clean overhangs and bridges, even at high speeds. A dedicated PrintTool fan maintains thermal stability during extended printing and frequent PrintTool changes, while a chamber fan draws in cooler air to help regulate internal temperatures. Together, these systems deliver consistent cooling and reliable print quality across changing ambient temperatures.


Engineering-grade filaments demand precise temperature control. The H3C delivers with active dual-zone chamber heating up to 65°C, helping maintain consistent temperatures and minimize warping. All nine hardened-steel nozzles reach up to 350°C, supporting demanding materials such as ABS, PC, PA-CF, PET-CF, and more.

Go beyond printing.

Swaptek isn’t limited to PrintTools. Optional CutTool, DrawTool, DebossTool — and more — mount the same way and switch automatically. Multi-process projects no longer mean multiple machines, manual swaps, or repeated setups. One job, every process, hands off.

Available now at Bambu Lab Store.


Availability and pricing details vary by region. Select features require additional accessories, full details available in Bambu Lab Store.

What multi-material or multicolor print do you hope to make with the H3C? Let us know under this thread!

Well, I know better than to early adopt, but damn…

So exciting!

Adam savages tested

All we need is this, but smaller…

Allowing an external input for regular AMS units is a good decision, but tying it to the #1 nozzle is an odd choice - it means anything coming from the external AMS is only ever able to be printed through a single nozzle size.

Other than that, this looks like a fairly impressive machine. Looking forward to seeing some reviews.

I still say the AMS 3 is fugly tho :laughing:

Congratulations Bambu! This is a pretty solid setup. The way you ended up handling the larger tpu is a true gamechanger. I did not see that coming. You guys did a great job with this printer, from what I can see from the marketing material.

Maybe I’ll grab one when I can and redo my comparison videos.

More advanced, more polished, integrated AMS, and still Cheaper… That seems like a well-aimed bullet.

Prusa must have really pissed them off with last year’s reveal that tried to upstage Bambu.

Congratulations Bambu.

The P3C is expected sometime soon also.

I feel like this could be an upgrade kit but it wouldn’t be super cheap. Unless it ships with one nozzle and allows people to upgrade as they go.

After finding out today that I’ll most likely need surgery based on my MRI results, seeing and actually managing to buy the H3C to finally release my own FDM models is just everything I could have asked for. Got the 0.2 nozzles, a Cool Plate, an assembly kit, and even the watch kit with my favourite green color for the TPU. Everything I’ve been looking for and even the final monthly price ended up just 61 cents away from what I was expecting to pay.

This is just the best present I could have given myself :smiling_face_with_tear:

Its also less capable given it cant dry 7 of the 9 slots. You can use AMS2s to have drying but whoops, limited to 1 slot again.

Multiplexing to 4 modules would solve it, AMS3 actually being a dryer would solve it. But bambu went with neither.

Overall it looks nice.

My only complaint is only having 2 slots acting as filament dryers in the AMS 3H. It makes sense that they would not have it on the whole thing, but I expected at least 4 or 5 (like top row or bottom row).

85C drying built in is nice though.

Well done Bambu you got me good.

H3C, .4HF nozzles, .2, .6, .8 Nozzle kit. 2x E1 Purifiers (H3C, H2D). Crafting kit, build plate kit, TPU x 3, Extra TPU nozzle. Spare parts.

boring small plate again---------

I wonder how many crafting kits they had available, they seem to have already been sold out after the first 5 minutes. Disappeared right when I clicked to add them.

Outstanding! Bambu Lab knocked this one out of the park. Some very exciting devs slipped into this announcement. I don’t “need” another printer. But dang! You’ve made it very difficult to not calculate the “need”. Really impressed. Those of us that just print for fun, this one is pretty darn cool. I’m stoked to see and hear the announcement for the kid brother of this one. Tuned in and raring to go.

I don’t know. It has a seperate Birds Eye camera that comes with it and it looks like it can be used for 3d Printing as well. "

EDIT: I guess you can buy it separate as well.
BirdsEye Camera - H3C | Bambu Lab US Store

“The AMS 3H does not have an auto-unload and rewind function. When unloading filament, you need to manually pull it out and rewind the filament.”

Bruh