For a very large bed, now discontinued

QIDI Tech X-Max 3

A CoreXY FDM printer with an actively heated chamber up to 65°C, a 325 × 325 × 315 mm nominal build volume; discontinued by QIDI.

Filament (FDM)325 × 325 × 315 mmEnclosed

Documentary analysis · Not personally tested

See the manufacturer and sellers

QIDI Tech X-Max 3, manufacturer image
Image provided by QIDI Tech. Equipment shown does not establish the contents of the selected bundle.

Specification sources reviewed 2026-09-12. These are manufacturer claims, not measurements by Find My 3D Printer.

Why consider it?

A 325 × 325 × 315 mm volume with an actively heated chamber up to 65°C, a nozzle advertised up to 350°C, and a bed up to 120°C per QIDI, one of the brand's largest heated formats.

What to verify

QIDI lists this model as discontinued (its listing shows sold out) and points to the QIDI Max4 (390 × 390 × 340 mm) as a successor; new-unit availability isn't guaranteed.

The specifications that matter

Process
FDM
Nominal build volume
325 × 325 × 315 mm
Enclosure
Enclosed
Multicolor
No stock multicolor system; compatible with the optional QIDI Box on later models in the lineup.
Materials
PLA, ABS, ASA, PETG, TPU, PC, nylon (UltraPA), and recommended fiber-reinforced composites (PAHT-CF, PET-CF, PA12-CF) per QIDI.

Allow room for supports and the chosen orientation. Confirm the exact nozzle, feeder, included accessories and installation clearance against the manual and seller’s listing.

Which projects is it for?

The X-Max 3 is a very-large-format CoreXY FDM printer, with a 325 × 325 × 315 mm nominal build volume per QIDI. It targeted makers printing large single parts or full batches on one plate, with an actively heated chamber to limit warping.

QIDI now lists this model as discontinued on its official page, which stays online with full specifications; it's no longer a standard new purchase, with the brand steering new buyers toward the even larger Max4.

Materials and setup

The actively heated chamber up to 65°C, a nozzle advertised up to 350°C, and a bed up to 120°C let it print ABS, ASA, PETG, and TPU on top of standard PLA per QIDI, at a generous format.

QIDI also recommends fiber-reinforced composites like PAHT-CF, PET-CF, and PA12-CF, as well as UltraPA nylon, materials that benefit from the heated chamber on a part this size.

What the bundle includes or not

Per the manufacturer's listing, the machine shipped with a desiccant dryer box and two nozzle sets (copper alloy and hardened steel), to cover both standard materials and abrasive composites.

The exact contents of any remaining stock unit aren't guaranteed to match this original description: check the retailer's listing carefully before buying.

Alternatives to compare

For an even larger format at QIDI, the Max4 (390 × 390 × 340 mm) officially takes over, though it isn't yet part of this catalog. For a large format still sold by QIDI, the Plus 4 is the direct alternative with a slightly smaller volume.

Against other enclosed large formats from other brands, the Creality K1 Max offers a 300 × 300 × 300 mm volume without an actively heated chamber, a useful comparison depending on the materials you target.

Frequently asked questions

Is the X-Max 3 still for sale?

No, QIDI's official listing marks it as discontinued and shows sold out across the listed warehouses; the brand recommends the larger Max4 as a replacement.

What's the benefit over the Plus 4?

The X-Max 3 offered a larger volume (325 × 325 × 315 mm versus 305 × 305 × 280 mm) per QIDI, but the Plus 4 is the model still actively sold today.

Is a heated chamber necessary for PLA?

Not really: per QIDI, the actively heated chamber up to 65°C mainly helps with ABS, ASA, and fiber-reinforced composites, not PLA, which prints fine without a heated enclosure.

Sources and limits

We have not measured noise, real printing speed, accuracy or reliability. Manufacturer images do not establish the contents of the selected bundle.