3D printer QiDi Max 4 model MAX4qidi

The QiDi Max 4 (model MAX4qidi) is a desktop FDM 3D printer engineered for hobbyists, designers and small workshops that require a large build volume and support for technical filaments. The printer combines a CoreXY motion system, a high-temperature extruder and a third-generation active heated chamber to enable printing of standard polymers such as PLA and PETG as well as engineering materials like PC and carbon-fiber composites. Built-in automation and connectivity features simplify iterative prototyping and small-batch production tasks.

Advantages

The Max 4 provides a 390 × 390 × 340 mm workspace that lets you produce large one-piece models without splitting parts. Its extruder reaches temperatures up to 370°C and uses a ceramic throat and improved heat dissipation to reduce clogging when processing demanding filaments. The active chamber heating up to 65°C combined with directed air circulation stabilizes the print environment and reduces warping. CoreXY mechanics, FOC closed-loop stepper motors and robust linear guidance deliver higher speed and positional accuracy while the printer’s automatic bed leveling, filament detection and a 1080p camera support more reliable unattended printing.

Suitable for

• Large-format prototyping and functional parts with a 390 × 390 × 340 mm build area
• Printing engineering filaments such as PC, PA, and carbon/glass fiber composites
• Hobby and small-series production where stable chamber temperature and filtration are required
• Designers and workshops that need fast, precise FDM printing with remote monitoring

When it may not be suitable

The QiDi Max 4 is relatively large and heavy (about 40 kg and substantial footprint), so it may not be convenient for very small desks, mobile use, or field work. Its power and heating systems are optimized for workshop and desktop environments with stable mains supply; it is not intended for battery-powered or highly constrained power scenarios.

Key specifications

• Build volume: 390 × 390 × 340 mm
• Maximum extruder temperature: up to 370°C
• Maximum heated bed temperature: up to 120°C
• Active chamber heating: up to 65°C (3rd generation)
• Maximum print speed: up to 800 mm/s; maximum acceleration: up to 30,000 mm/s²
• Extruder type: Direct Drive with hardened steel double gears
• Supported filament diameter: 1.75 mm
• Supported materials: PLA, ABS, ASA, PETG, TPU, PA, PC, carbon and glass fiber composites
• Material flow capacity: 40 mm³/s
• Motion system: CoreXY with reinforced belts, linear guides and multi-guide Z-axis with dual motors
• Automation: automatic bed leveling (load cell sensor), filament end detection, print resume after power loss
• Air filtration: 3-stage (G3 pre-filter, HEPA H12, activated carbon)
• Camera: 1080p with timelapse support
• Connectivity: Wi‑Fi (2.4/5 GHz), Ethernet, USB
• Interface and memory: 5" touchscreen (800 × 480), 32 GB eMMC + USB
• Supported file formats and software: STL, OBJ, 3MF, STEP/STP; QIDI Studio, OrcaSlicer, PrusaSlicer
• Power input: 110 V / 220–240 V AC, 50/60 Hz; rated power includes chamber and bed heating

How to use

Install the printer on a stable, level surface that can support its weight and allow ventilation. Load 1.75 mm filament into the Direct Drive extruder and set appropriate temperature profiles in the slicing software for the chosen material. Use the automatic bed leveling routine before the first print and after changing the build surface or nozzle. Monitor prints remotely via Wi‑Fi or the integrated camera and use filament end detection and resume functions to reduce failed prints. Follow the included maintenance instructions for lubrication and periodic inspection of belts, pulleys and guides to preserve accuracy and reliability.

What to consider before purchase

• Check physical dimensions and ensure you have sufficient space for the 558 × 578 × 612 mm footprint and ≈40 kg weight
• Confirm power compatibility (110 V or 220–240 V, 50/60 Hz) for your location
• Decide which filaments you plan to use and confirm the need for high extruder and chamber temperatures
• Plan for ventilation and handling of engineered filaments, including post-processing of carbon/glass fiber composites
• Account for the learning curve associated with large-format and high-temperature FDM printing

Usage recommendations

For stable results with technical filaments, preheat the chamber and bed to recommended temperatures and allow the chamber to reach thermal equilibrium before starting long or large prints. Use the provided filtration system when printing materials prone to emissions, and schedule regular checks of the extruder throat and hotend when printing abrasive composite filaments.