QIDI Plus4 - 3D Printer CoreXY

QIDI Plus4 3D printer – high-temperature CoreXY for professional applications

Introduction: who is QIDI Plus4 intended for

QIDI Plus4 is an enclosed CoreXY FDM 3D printer with a large print volume of 305×305×280 mm, actively heated chamber up to 65°C, and a high-temperature nozzle up to 370°C. This positions it between desktop and industrial solutions – ideal for engineers, product designers, small manufacturing workshops, makerspaces, and advanced hobbyists who want reliable printing with technical materials like ABS, ASA, PC, PA, and composite filaments with carbon/glass fibers.:contentReference

Thanks to the fully enclosed housing, active heating of the chamber, and stable steel construction, Plus4 is designed for long working cycles and consistent quality – exactly what print farms and prototyping departments need. In independent reviews, the printer is often described as "entry-level industrial" – easy enough for beginners, but with capabilities that satisfy demanding professionals.

Technology and print quality

QIDI Plus4 uses FDM/FFF technology (Fused Deposition Modeling) in CoreXY configuration. This means that the print head moves quickly and smoothly across the XY plane, while the platform only moves along the Z-axis, minimizing inertial forces and vibrations. The result is a smoother surface and higher accuracy at high speeds compared to classic Cartesian machines.

The minimum layer thickness is 0.05 mm (50 μm), and the maximum is up to about 0.4 mm, allowing for both fine details and coarser, but very fast prototypes. The typical dimensional accuracy is in the range of 50–200 μm according to commercial and review sources.

The hot end is a fully metal bimetallic hotend with a power of about 80 W and a maximum temperature of 370°C, which opens the door to engineering polymers and composites – PA, PC, ABS/ASA, PPA-CF, PPS-CF, etc.:contentReference[oaicite:4]{index=4} The standard nozzle is 0.4 mm, with options of 0.2/0.6/0.8 mm for fine details or thicker layers.

The chamber is actively heated to 65°C with a circulation fan and an activated carbon filter. This stabilizes the temperature around the model, reduces warping and cracking with materials like ABS, ASA, PC, and reinforced nylons, while simultaneously limiting dust particles and odors.

Performance, speeds, and workflow

Plus4 is designed for high performance. The officially declared maximum printing speed is up to 600 mm/s with acceleration up to 20,000 mm/s², supported by Klipper firmware with activated input shaping to limit ringing effects. In practice, this allows for significantly reduced printing time while maintaining very good detail – especially useful for serial printing of repeatable parts.

The build volume of 305×305×280 mm is large enough for complete helmets, complex figurines, functional prototypes, and even small series of parts placed on a single platform. The printing platform is a double-sided textured PEI plate that provides good adhesion when heated and easy removal of the finished model when cooled.

The leveling system is fully automatic ("hands-free"), combining sensors and Klipper macros to create an accurate bed mesh map. This makes the first layer reliable even for beginners and reduces the need for manual tweaking of screws.

The firmware is Klipper v0.12 with a clean and modern UI, managed by a 5-inch 800×480 touchscreen. Although some reviews note a slightly "slow" interface when clicking quickly, the general opinion is that navigation is logical and easy to get used to.

Plus4 features 32 GB of built-in eMMC storage, a USB port for external flash memory, as well as Wi-Fi and Ethernet for network printing and remote monitoring. The built-in 1080p camera allows for timelapse and monitoring of the print through the software.

Software, compatibility, and ecosystem

The officially recommended software is QIDI Studio – a modified version of Bambu Studio/PrusaSlicer, optimized for all QIDI models. It is available for Windows, macOS, and Linux and offers profiles for the main materials and for Plus4 out of the box.

For advanced users, the printer is also compatible with Orca Slicer, as well as popular software like Cura and PrusaSlicer, providing flexibility in integration into existing workflows.

QIDI Studio (and other supported slicers) work with the most common 3D file formats – STL, OBJ, 3MF, STEP, AMF, generating standard G-code for the printer. This facilitates the import of models from CAD systems as well as those downloaded from online libraries.

In the QIDI ecosystem, there is a rich range of engineering and composite filaments – PLA, PETG, TPU, ABS, ASA, PC, PA, UltraPA (PPA), carbon/glass fibers, etc., specifically tested for Plus4. This does not exclude the use of third-party materials but ensures that with the official profiles, stable results are reached faster.

For extended features like multicolor printing, the printer is compatible with the external QIDI Box module, which feeds several filaments to a single hotend.

Design, construction, and ergonomics

The body of the QIDI Plus4 is enclosed, with a metal chassis and plastic panels, providing good thermal insulation and solid mechanical stability. The dimensions of the printer are 505×487×550 mm, and the net weight is about 27 kg, so it needs to be placed in a permanent spot on a stable surface.

The movement in XY is realized through CoreXY kinematics with automatic belt tensioning and 10-mm hardened hollow steel shafts, while in Z – through two independent screw motors and linear guides. This significantly reduces platform twisting and improves the quality of the first layer, especially with larger models.

The 5-inch 800×480 touchscreen is conveniently located at the top of the body, with a clean menu and quick access to the main functions – starting print, calibrations, setting temperatures and speeds, camera control, and more.

The printer offers several convenient interfaces – USB, Ethernet, and Wi-Fi, and the built-in handles facilitate its movement (despite the massive weight). The front door and glass top cover provide good access to the chamber for filament changes, inspection, and cleaning.

Professional scenarios, limitations, and best practices

Engineering prototyping and functional parts. Thanks to the high nozzle temperature and heated chamber, Plus4 is excellent for printing ABS, ASA, PC, and nylon composites for prototypes of enclosures, technical details, assembly fixtures, etc., where dimensional stability is critical.

Small batch production. The large volume and high speeds make the printer suitable for short runs of repeatable parts – e.g. fasteners, custom brackets, jigs, and fixtures for production, with very good dimensional repeatability.:contentReference[oaicite:23]{index=23}

Cosplay, props, and large models. Models such as full-size helmets, masks, and figures can be printed in one piece or in a few segments, thanks to the volume of 305×305×280 mm and the PEI platform that holds large prints without warping.:contentReference[oaicite:24]{index=24}

Education and laboratories. The enclosed body, air filtration, and stable printing with engineering materials make Plus4 a good choice for university and R&D laboratories that want to train students on real industrial materials.

Scenarios from the user community. On Reddit and other communities, Plus4 owners often share successful projects with ASA-CF, PPS-CF, and other difficult-to-print composites, as well as 100+ hour prints without serious issues, provided there is good maintenance and calibration.

Limitations and known peculiarities. Out of the box, the printer has only one extruder; multi-color printing requires QIDI Box. The interface sometimes responds slower when quickly scrolling through menus, and the machine itself is heavy and not convenient for frequent moving. User forums discuss topics about X-axis maintenance and lubrication of guides to avoid wear or jamming – it is good practice to follow the manufacturer's maintenance recommendations and use quality lubricants.

As general good practices for Plus4 (and for any high-temperature 3D printer), the following are recommended:

• good ventilation of the room, especially when printing with ABS, ASA, and PC;
• drying hygroscopic filaments (PA, PPA, PET-GF/CF) before printing;
• periodic inspection and cleaning of the PEI plate and chamber;
• regular calibration and checking of automatic leveling;
• monitoring the printer during initial attempts with new material or profile.

Technical specifications, sources, and downloadable materials

Technical specifications

The data below is summarized from the official QIDI specifications and independent technical sheets.