Bambu Lab H2C Multicolor Printing Tips

You want to know the secret behind every chunky little Demon Cat keychain, every articulated dragon, and every Deadpool Pokéball in my shop? One beautiful, over-caffeinated machine: the Bambu Lab H2C. It's the printer that lets me throw seven colors at a model and come out the other side with something that looks painted instead of printed. Let me pull back the curtain.

What makes the Bambu Lab H2C a multicolor beast

The H2C's party trick is the Vortek Hotend Change System — six swappable, contactless hotends that let it print up to SEVEN colors or materials in a single job (and up to 24 filaments when you bolt on the AMS units, which I run two of). Induction heating gets a nozzle up to temp in about 8 seconds, it'll hit 350°C, and the heated chamber keeps the fussy engineering filaments happy. Translation: it swaps colors fast and rarely throws a tantrum.

Multicolor's dirty little secret: purge waste

Here's the thing nobody puts on the box: every time a multicolor printer changes color, it has to purge the old color out of the nozzle, and that plastic goes in the trash. On a traditional single-nozzle AMS setup, a busy multi-color print can spit out 300 grams of waste. The H2C's multi-hotend system cuts that by up to 58% — so that same print might waste under 130 grams. Less wasted plastic is literally more merc money in my pocket, and fewer little poop-noodles in the bin.

My H2C multicolor printing tips

A few things I've learned wrangling color on this machine, so you don't have to learn them the hard (wasteful) way:

Flush into infill: in Bambu Studio, turn on "flush into infill" so the purged color hides inside your model instead of building a giant wasteful purge tower next to it. Free plastic savings.

Tune your purge volumes by transition: going light-to-dark needs way less purge than dark-to-light. Yellow into black? Easy. White out of red? Crank it up or you'll get muddy edges.

Keep the hotends clean: cold pulls and the little cleaning sponge are your friends. A gunky nozzle is where color bleed and failed swaps come from.

Model in pieces / color by part: a lot of my designs (the Pokéballs especially) are built so each color lives on its own part, which means cleaner color breaks and even less purge. Design smart, waste less.

See the H2C multicolor work in the shop

Want to see what seven colors of maximum effort looks like in person? The whole Print Shop is stocked with H2C multicolor prints — the Deadpool, Wolverine, and Iron Man Pokéballs, the Demon Cat keychains, and the articulated dragons. Every one of them comes off this machine.

Bambu Lab H2C FAQ

How many colors can the Bambu Lab H2C print?

Up to 7 colors or materials in a single print thanks to the Vortek multi-hotend system — and up to 24 filaments when paired with Bambu Lab AMS units.

Does multicolor 3D printing waste a lot of filament?

Some purge waste is normal on any multicolor printer, but the H2C's multi-hotend design cuts it by up to about 58% compared to a single-nozzle AMS setup. Turning on "flush into infill" trims it even more.

What is the Vortek hotend system?

It's the H2C's system of six swappable, contactless hotends, induction-heated to temperature in roughly 8 seconds, that lets the printer change colors and materials fast with far less waste.

Can you print multicolor without a purge tower?

Mostly, yes — enable "flush into infill" in Bambu Studio to hide the purged filament inside your model instead of building a separate purge tower.

Want a custom multicolor print, or the merc in red at your event? Browse the Print Shop or book The Dallas Deadpool. Maximum effort, maximum colors. — The Dallas Deadpool

Small print: I'm not affiliated with or sponsored by Bambu Lab — I'm just a guy who prints an unreasonable amount of stuff and loves this machine. Specs and figures are from Bambu Lab's own published info as of 2026.