QIDI Max4

QIDI Max4 – large-format, fast and accurate 3D printer for demanding users

QIDI Max4 is the flagship FFF/FDM 3D printer from QIDI for users who need large print volume, high speed and industrial reliability. Thanks to the volume of 390 × 390 × 340 mm, you can easily print large prototypes, functional parts, fixtures, molds and smaller production series. Combining CoreXY kinematics, FOC closed-loop motors, 370 °C high-flow hotend (40 mm³/s) and an actively heated chamber up to 65 °C pushes the Max4 to the level of industrial machines, but with the simplicity of a desktop printer.

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Main advantages of QIDI Max4

• Huge print volume 390 × 390 × 340 mm – ideal for large parts and multiple jobs in one run.
• Fast CoreXY kinematics – head movement speed up to 800 mm/s, acceleration up to 30 000 mm/s².
• 370 °C hotend, flow rate up to 40 mm³/s – ready for technical and filled materials (CF/GF).
• Actively heated chamber up to 65 °C – significantly reduces warping for ABS, ASA, PA, PC and composites.
• 390 × 390 mm silicone heated bed with even temperature distribution – stable adhesion over the entire surface.
• Enclosed, rigid all-metal construction – stability, safety and consistent results.
• Automatic nozzle leveling (loadcell in hotend) – no offset probe, real contact with the plate.
• AI camera – print monitoring, detection of "spaghetti" and print errors.
• Compatibility with QIDI Box – possibility of multi-color and multi-material printing with up to 16 materials.
• Wide filament support – PLA, ABS, ASA, PETG, TPU, PA, PC, carbon and glass fiber composites, etc.
• Modern connectivity – Wi-Fi 2.4/5 GHz, Ethernet, USB, built-in 32 GB EMMC memory.
• 5" touchscreen and QIDI Studio – intuitive control, support for OrcaSlicer, PrusaSlicer etc.

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Who is QIDI Max4 suitable for

• Industry and production – large functional parts, fixtures, assembly accessories, small series.
• Development and prototyping – rapid iteration of designs, use of technical materials close to final plastics.
• Service, automotive, hobby workshops – robust spare parts, covers, holders, fixtures.
• Schools and universities – demonstrating advanced printing technologies and processing of technical polymers.

Thanks to the combination of large volume, heated chamber and high speed, the Max4 is an ideal "workhorse" wherever printing is frequent and from demanding materials.

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Print quality and speed

CoreXY + FOC closed loop

Max4 uses a CoreXY arrangement with 1.5GT belts and FOC closed-loop motors. This brings:

• smoother and more precise movement,
• reduction of vibration (VFA) and surface artifacts,
• higher reliability at high speeds.

The printer handles head movement speeds up to 800 mm/s and acceleration up to 30 000 mm/s². In practice, this means significantly shorter print times for large models, especially in combination with a high-flow hotend.

Z-axis with short step and anti-backlash nut

The Z-drive is handled by 2mm screws with separate motors and anti-backlash nuts. The short screw pitch minimizes wobble and ensures very fine layering even for tall models.

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Hotend, heated chamber and cooling

370 °C high-flow hotend

• Max. nozzle temperature 370 °C.
• Material flow up to 40 mm³/s – suitable for high-speed printing.
• Ceramic heatbreak for effective thermal insulation.
• New hotend cooling module to reduce clogging.
• Bi-metal hardened steel nozzle – ideal for abrasive filaments (CF/GF).

Actively heated chamber

Integrated PTC heating with controlled air circulation can heat the chamber up to 65 °C. This:

• stabilizes printing for ABS, ASA, PA, PC and composites,
• minimizes deformation and cracking,
• ensures consistent mechanical properties throughout the height of the model.

Active head cooling – Polar Cooler (optional)

The optional Polar Cooler brings cold air directly to the extruder and filament and significantly reduces the risk of clogging, even during long prints in a hot chamber.

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Print bed and first layer

• Bed size 390 × 390 mm.
• Aluminum reinforcement + silicone heating layer with densely spaced heating wires.
• Maximum bed temperature up to 120 °C.
• Double-sided textured PEI plate included in the package.

The result is uniform temperature over the entire surface, excellent adhesion of the first layers and minimization of warping of large parts.

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Automatic leveling and sensors

Nozzle leveling (loadcell)

Max4 uses an integrated loadcell sensor in the hotend, so the nozzle itself is the sensor.

• There is no offset between the probe and the nozzle.
• Alignment is not affected by the type of printing surface.
• User-friendly – true "plug & play" first layer.

Other safety and user features

• Filament sensor (run-out) – stops printing when filament runs out.
• Tangle detection (with QIDI Box) – protection against feeding errors.
• Power loss recovery.
• AI camera (up to 1080p) – timelapse, remote monitoring, "spaghetti" detection.
• RGB status LEDs – fast visual information about print status.

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Supported materials

Max4 is designed as a highly versatile machine for a wide range of filaments:

• Standard materials: PLA, PLA+ (with high-speed profiles), PETG.
• Technical materials: ABS, ASA, PA (nylon), PC.
• Flexible: TPU.
• Composites: carbon and glass filled polymers (e.g., PA-CF, PETG-CF, PLA-CF/GF etc.).

Thanks to the heated chamber and hardened nozzle, Max4 is suitable for functional parts with high strength and temperature resistance.

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Software, connection and control

• Slicer: QIDI Studio (recommended), support for OrcaSliceru, PrusaSliceru and others.
• File formats: STL, OBJ, 3MF, STEP, STP etc.
• Connectivity: 2.4 GHz / 5 GHz Wi-Fi, Ethernet, USB flash.
• Storage: integrated 32 GB EMMC + USB flash.
• Display: color 5" touchscreen panel 800×480 with modern UI.

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Air filtration and safety

• 3-in-1 filter: G3 pre-filter + H12 HEPA + activated carbon from coconut shells.
• Enclosed and flame-retardant chamber for higher safety.
• Multiple temperature sensors and closed-loop temperature regulation for stable and safe operation.

This is ideal for both homes and schools, as well as professional workshops where safety and cleanliness of the environment is important.

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Compatibility with QIDI Box (multi-color / multi-material)

QIDI Max4 can be expanded with the QIDI Box, an intelligent multi-material feeder:

• Up to 4 materials per QIDI Box, up to 16 materials when connecting multiple boxes.
• Active filament drying up to 65 °C during printing.
• Automatic spool switching and tangle detection.
• Suitable for multi-color printing, soluble supports and combination of different materials.

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SEO – what problems QIDI Max4 solves

• Shortening print time of large parts thanks to high speed and high flow.
• Stable printing of technical plastics – heated chamber, uniform bed heating.
• Industrial accuracy and repeatability – CoreXY, linear guides, FOC motors.
• Automation and oversight – AI camera, sensors, remote connection.

If you are looking for a large-format 3D printer with fast and reliable printing of technical materials, QIDI Max4 is a modern solution ready for intense daily operation.

Key features:

• Large-format print volume 390 × 390 × 340 mm for large parts and small series
• Fast CoreXY kinematics with closed-loop motors (FOC) for precise and quiet operation
• Maximum nozzle temperature 370 °C and flow rate up to 40 mm³/s for technical and filled materials
• Actively heated chamber up to 65 °C for reliable printing of ABS, ASA, PA, PC and composites
• Uniformly heated silicone bed 390 × 390 mm with double-sided PEI surface
• Automatic nozzle leveling thanks to loadcell sensor in hotend – no probe offset
• AI camera with error detection and timelapse support for remote supervision
• Compatibility with QIDI Box for multi-color and multi-material printing with up to 16 materials
• 3-in-1 filter (HEPA + carbon filter) and enclosed chamber for safer operation
• Wide connectivity (Wi-Fi, Ethernet, USB) and internal 32GB memory for convenient workflow