Elegoo Centauri Carbon 2 Combo Review: Four-Color Printing on a Budget

The Elegoo Centauri Carbon 2 Combo is the cheapest way to put an enclosed, four-color CoreXY printer on a desk. At $369 on sale against a $449 list price, it is priced against open-frame single-color machines rather than against other enclosed multicolor ones. That is the whole argument for it, and it is also where you should look for what you are giving up.

What the Combo adds over the Centauri Carbon 2

The Combo is the Centauri Carbon 2 with a CANVAS material system attached: same motion platform, same chamber, same hotend, same build volume. The one functional difference is that four spools feed the machine and color changes happen inside a single job instead of you standing over it with a pair of cutters.

That difference is not cosmetic. Four-color printing is normally the feature that doubles the price of a budget printer, because the material system is a second mechanism with its own motors, its own filament path, and its own failure modes. Getting it bundled at this price is the entire reason the Combo exists as a separate product.

Hardware

• Build volume: 256 × 256 × 256 mm
• Hotend: 350 °C hardened nozzle
• Heated bed: 110 °C
• Chamber: enclosed, with a smart grille and all-around cooling
• Motion: CoreXY, rated to 500 mm/s and 20,000 mm/s² acceleration
• Sensors: 31, with full-auto calibration and one-click leveling
• Noise: rated under 45 dB while printing

Three of those numbers decide what the machine can actually be used for. The enclosure holds a stable chamber, which is what separates ABS, ASA, and polycarbonate from wishful thinking on an open frame. The 350 °C nozzle and 110 °C bed reach engineering filaments rather than stopping at PLA and PETG. The CoreXY platform, rather than a bedslinger, is why the speed rating is not pure marketing — the toolhead moves, not the part, so tall prints do not wobble themselves into scrap.

The running cost is purge

Every color change on a single-nozzle four-color system throws filament away. The nozzle has to clear the old color before the new one arrives, and that cleared plastic goes in the bin. More colors per layer means more changes, and a model painted into four colors can spend a large fraction of its filament on transitions rather than on the part.

This is the trade the Combo makes, and it is not a defect — every single-nozzle multicolor printer does it. But it turns a cheap machine into a machine with a higher cost per finished print, and it makes “how many colors does this model actually need” a question worth asking before you slice. A two-color print with a handful of swaps is cheap. A figurine shaded across four colors on every layer is not.

Where it falls short

Remote management is the weak part of the package. There is no native camera streaming and no mature fleet-management app, so the machine is at its best standing next to you rather than monitored from another room. If your workflow depends on watching a print from a phone, checking a timelapse, or running several printers from one dashboard, this is the wrong ecosystem and no amount of price makes up for it.

Fan noise is the second complaint worth knowing about before you buy. The 45 dB rating is a claim about a specific operating condition, not a promise about a four-hour multicolor job in a shared room.

Who should buy it

Buy the Combo if you want an enclosed machine that can handle engineering filaments and you also want color, and you are willing to plan prints around purge waste to get both at this price. At $369 it is a lot of machine for the money: enclosure, four-color, and CoreXY kinematics are three features that normally do not appear together under $400.

Who should not

Do not buy the Combo if you print single-color. The material system buys you nothing, the extra mechanism is one more thing to maintain, and the single-color Centauri Carbon 2 does the same printing for less.

Do not buy it as a first printer if what you actually want is a polished appliance. The hardware is the strong half of this product; the software and monitoring story is the weak half, and a beginner notices the weak half first.

And do not buy it on the strength of the sale price alone. A four-color machine with a purge-heavy workflow can cost more per finished part than a two-color print on the same hardware. Decide what you are printing first, then decide whether four colors belong in it.