Does the Bambu Lab H2S have a dual nozzle?

No. The Bambu Lab H2S has a single hotend. Bambu Lab says it cannot be upgraded to an H2D. The one official way to get two nozzles is the Vortek Upgrade Kit (H2S Compatibility Pack), listed at $899 on October 12, 2026. The kit converts the printer into an H2C.

Does the Bambu Lab H2S have a dual nozzle?

No. The H2S has one hotend. Bambu Lab’s comparison of the H2 series lists the H2S as “Single hotend”, the H2D as “Dual hotend” and the H2C as “Dual hotend+Vortek”. The H2S still prints in multiple colors, but every color goes through that one nozzle, fed by an AMS (Automatic Material System) filament changer.

The trade for the missing second hotend is space. Bambu Lab lists the H2S build volume as 340 × 320 × 340 mm, the largest in the H2 series. Like the H2D, it has a 350 °C nozzle and a 65 °C actively heated chamber.

Can you upgrade the H2S to dual nozzle?

Yes, but only by converting it into an H2C with Bambu Lab’s Vortek Upgrade Kit (H2S Compatibility Pack), listed at $899 on October 12, 2026. The kit replaces the heatbed, toolhead and AP board and adds a hotend rack. Bambu Lab rules out an H2S-to-H2D upgrade and recommends buying an H2C instead of converting.

To the question “Can the H2S be upgraded to an H2D?”, Bambu Lab’s H2S FAQ answers: “No, it is recommended to choose the model that suits your needs when placing an order.” After the upgrade, the machine has a left lifting hotend plus a right hotend that swaps among induction hotends held in a rack. That gives up to 7 hotends in one print, each a separate material with no purge between them.

What the H2S-to-H2C conversion involves

Bambu Lab’s upgrade guide rates the job five out of five for difficulty and estimates 4 to 5 hours. It involves:

• Firmware first. Update the H2S to firmware 01.02.00.00 or later before you start. Bambu Lab warns that skipping this can make the upgrade fail and “could even require replacing the MC board”.
• New identity. The kit includes a new AP (application processor) board with its own serial number. You send both serial numbers to Bambu Lab support, and the printer cannot join Wi-Fi or your Bambu account until it is registered. Afterwards it runs H2C firmware.
• Parts swapped. You replace the heatbed, the toolhead with X-axis assembly, the AP board and the front cover, and add the hotend rack and the induction hotend latch actuator.
• In the box. The kit ships with six induction hotends (four 0.4 mm hardened steel, one 0.6 mm hardened steel, one 0.2 mm stainless steel), a textured PEI (polyetherimide) plate and a nozzle offset calibration sensor.

Laser-edition H2S owners face extra steps. Bambu Lab does not recommend converting the laser version. H2C firmware expects Hall sensors in the side panels, so you would also buy the H2C left and right side panels yourself. Bambu Lab support sends the matching top cover frame assembly free for a Vortek upgrade order.

What changes after the upgrade

The build volume shrinks, because the converted printer takes on the H2C’s heatbed and toolhead. Figures are from Bambu Lab’s H2 series comparison:

Mode	H2S as shipped	After Vortek upgrade (H2C)
Single nozzle	340 × 320 × 340 mm	325 × 320 × 325 mm (left), 305 × 320 × 325 mm (right)
Both nozzles, overlap	n/a	300 × 320 × 325 mm
Both nozzles, combined	n/a	330 × 320 × 325 mm

On cost: the H2S printer is $1,199, so with the $899 kit the total is $2,098. The H2S AMS Combo is $1,399, so with the kit it reaches $2,298. Bambu Lab lists the H2C AMS Combo at $2,199. The store’s product data showed both Vortek kit versions out of stock on October 12, 2026.

How is the H2S different from the H2D and H2C?

The table compares the three H2 printers by their maker specifications, sorted by price. Prices are in US dollars, listed by Bambu Lab on October 12, 2026. The H2S and H2D AMS Combo listings showed these as reduced from a “typical price” of $1,499 and $1,999. Bambu Lab lists no printer-only H2C.

Printer	Hotends	Build volume	Printer only	AMS Combo
H2S	1	340 × 320 × 340 mm	$1,199	$1,399
H2D	2 (left and right)	325 × 320 × 325 mm single, 350 × 320 × 325 mm combined	$1,549	$1,749
H2C	2, right one swaps among up to 6 induction hotends	325 × 320 × 325 mm left, 330 × 320 × 325 mm combined	not listed	$2,199

All three list a 350 °C nozzle and a 65 °C actively heated chamber. For what a second nozzle changes in a print, see dual-nozzle printing. The H2D’s two-nozzle layout is covered in does the H2D have a dual nozzle.

How do you print multi-material on an H2S?

Connect an AMS and every material shares the one nozzle. Bambu Lab’s H2S FAQ gives the limits:

• Supported units. The AMS 2 Pro, the AMS HT and the first-generation AMS all work. The first-generation AMS works for printing but cannot dry filament on the H2S. The AMS lite does not fit the H2S.
• Maximum slots. Up to 4 AMS 2 Pro and 8 AMS HT units, for 24 filament slots.
• Adapter. Connecting more than one AMS needs the 4-in-1 PTFE Adapter (FAZ013-N), per the H2S store listing.

With one nozzle, every change between materials purges the old filament before the next one prints, which costs filament and time on prints with many color changes. Bambu Lab’s Vortek system avoids that purge for up to 7 materials. For routes that work through one nozzle, see multi-color printing.