Plus4 vs i-Fast

Technical comparison · Fused filament fabrication (FFF/FDM)

In brief

Plus4 and i-Fast are two fused filament fabrication (fff/fdm) in a similar class. Choose Plus4 if price and max print speed matters more; choose i-Fast if multi-extruder and multicolor requires accessory matters more. On the category's overall technical index, Plus4 scores 63/100 against 45/100 for i-Fast.

Parameter
Qidi Tech Plus4 Plus4 Qidi Tech F2 · Intermediate
Qidi Tech i-Fast i-Fast Qidi Tech F3 · Advanced
Identity
Launch year 2024 2021
Use tier F2 — Intermediate F3 — Advanced
Price
Price (€) 799 € ~1800–2500 €
Universal specs
Dimensions (W×D×H) (cm) 50.5 × 48.7 × 55 cm 71 × 51 × 67 cm
Weight (kg) 27 kg 33 kg
Work area (mm) 305 × 305 mm 330 × 250 mm
Z-axis height (mm) 280 mm 320 mm
Power (W) 850 W
Voltage (V) 240 V
Maximum speed 600 mm/s 150 mm/s
Category specs
Footprint X×Y (short side) (mm) 305 mm 250 mm
Build height Z (mm) 280 mm 320 mm
Kinematics CoreXY CoreXY
Max nozzle temperature (°C) 370 °C 300 °C
Max bed temperature (°C) 120 °C 100 °C
Max print speed (mm/s) 600 mm/s 150 mm/s
Enclosed chamber True True
Filament sensor True True
Auto bed leveling Mesh
Standard nozzle diameter (mm) 0.4 mm 0.4 mm
Multi-extruder False True
Native Klipper True False
Input shaper True False
Multicolor printing True True
Multicolor requires accessory True False
Max colors 16 2
Ecosystem
Cloud dependency No No
Software notes The machine relies on an architecture based on Klipper firmware, which provides advanced computational performance and native features like input shaping to reduce vibrations during high-speed movements. Users can interface via the integrated 5-inch touchscreen or through the standard Klipper web interface. The recommended official slicing software is QIDI Studio, a program derived from PrusaSlicer and Orca Slicer, optimized to leverage the machine's profiles and proprietary print parameters. However, the system maintains an open approach and is fully compatible with third-party slicers such as Orca Slicer, PrusaSlicer, and Cura, ensuring maximum flexibility in the daily workflow. The machine comes with the proprietary Qidi Print software, a slicer based on proven open-source architectures, specifically optimized for the profiles of the technical materials supported by the printer. Users can still generate G-code using other widely adopted third-party slicers on the market, such as Ultimaker Cura, PrusaSlicer, or Simplify3D, after manual configuration of machine and extruder parameters. Although it lacks native cloud features or advanced remote connectivity for corporate fleet management, it supports direct file transfer via local Wi-Fi or USB drives, ensuring a secure offline workflow for intellectual property protection.

The differences that matter

  • Price: Plus4 799 € vs i-Fast 2150 € — Plus4 wins (+169%)
  • Max print speed: Plus4 600 mm/s vs i-Fast 150 mm/s — Plus4 wins (+300%)
  • Max colors: Plus4 16 vs i-Fast 2 — Plus4 wins (+700%)
  • Multi-extruder: i-Fast yes, Plus4 no
  • Native Klipper: Plus4 yes, i-Fast no

Which one to choose

Choose Plus4 if…

you value price, max print speed and max colors.

See the Plus4 sheet →

Choose i-Fast if…

you value multi-extruder and build height z.

See the i-Fast sheet →

MakerSpecs is an independent atlas. We don't sell products: this comparison links to both sheets, where you'll find complete data and official links.