Anycubic Kobra 4 Combo Review: A Measured Update for 3D Printing Beginners
The Anycubic Kobra 4 Combo enters the 3D printing market as a refined, entry-level machine that prioritizes ease of use and multi-material handling. Priced at $379 for the combo unit, it features an upgraded ACE Pro 2 filament system and a 260 x 260 x 260 mm build volume. While it offers significant improvements in filament management over the Kobra 3, it faces stiff competition from established models like the Creality SparkX i7 and the Bambu Lab A1, which currently dominate the budget-friendly, multi-color segment.
How Does the Kobra 4 Combo Improve Filament Handling?
The most substantial technical advancement in the Kobra 4 is the ACE Pro 2, a multi-material handler that replaces the original ACE system. According to testing, the new unit functions similarly to the Bambu Lab AMS, utilizing individual feeders for each filament spool. This design resolves the frequent misfeeds and synchronization issues found in earlier versions. The ACE Pro 2 also integrates a filament drying feature, allowing users to heat and dry materials like PETG while actively printing. However, users should note that while the system is designed for multi-material throughput, TPU filament still requires manual loading via an external spool holder, as it remains incompatible with the automatic feeder.
Design and Build Quality
Anycubic has shifted toward a more modern aesthetic with the Kobra 4, adopting a brushed aluminum frame and a pale plastic base. This design choice bears a striking resemblance to the Bambu Lab A1, reflecting a broader industry trend toward “bed slinger” printers with streamlined, open-frame footprints. The machine includes a 720p camera mounted on the Z-axis, which provides AI-powered spaghetti detection. While this feature effectively identifies print failures, the camera angle—typical of bed-slinger configurations—limits its utility for high-quality timelapse recording.

Performance and Software Compatibility
The Kobra 4 utilizes the Anycubic Slicer Next software, a fork of OrcaSlicer, which itself is built upon the PrusaSlicer foundation. This software environment allows for remote monitoring and print management through the Anycubic app. In performance tests, the printer demonstrated reliable consistency with standard PLA and PETG, maintaining clean hinges and accurate dimensions. However, users have reported software bugs regarding filament waste estimation, where the slicer occasionally suggests inaccurate or negative flushing volumes—a recurring issue carried over from the Kobra X model.
Market Positioning and Comparison
When evaluating the Kobra 4 against current market alternatives, its value proposition is nuanced. The following table highlights how it compares to its primary competitors in the entry-level multi-material space:

| Model | Market Positioning | Key Advantage |
|---|---|---|
| Anycubic Kobra 4 Combo | Budget-minded beginner | Integrated filament drying |
| Bambu Lab A1 | Established ecosystem | Advanced software and reliability |
| Creality SparkX i7 | Beginner-focused | Aggressive price point |
While the Kobra 4 is a capable machine, it does not displace the Kobra X as the top recommendation for budget-conscious users. The Kobra X remains more space-efficient and offers a more streamlined filament path. The Kobra 4 is best suited for hobbyists who specifically require an all-in-one drying and printing solution but do not need the highly mature software ecosystems offered by competitors like Bambu Lab.
Key Takeaways for Potential Buyers
- ACE Pro 2 Reliability: The new filament handler is a major upgrade, featuring individual feeders that significantly reduce loading errors.
- Material Versatility: While the machine handles PLA and PETG well, TPU must still be fed manually through an external mount.
- Software Constraints: Users should be aware of persistent bugs in the slicing software regarding filament purge calculations.
- Setup Requirements: The unit arrives mostly assembled, requiring only the removal of packing screws and the attachment of the toolhead and purge wiper.
As the 3D printing market continues to evolve, the Kobra 4 represents a steady iteration rather than a radical shift. Future firmware updates are expected to address the current slowness of the filament swapping process, which remains one of the few friction points in an otherwise smooth user experience.