Anycubic Kobra S1 ACE 2 Pro Combo Review: Enclosed Multicolor Value

At first glance, the Kobra S1 clearly borrows visual cues from the category standard-bearers, but a closer touch reveals deliberate cost optimizations. The frame is structurally rigid where it counts, providing a firm foundation for high-acceleration CoreXY kinematics. However, Anycubic opted for lightweight plastic moldings and acrylic windows instead of heavy tempered glass. This aesthetic compromise serves a practical purpose: it reduces shipping weight and manufacturing overhead while still creating an insulated chamber capable of retaining ambient heat for warp-prone polymers like ABS and ASA. Inside, the 320C quick-release hotend and single-nozzle direct drive assembly showcase mature manufacturing, allowing rapid hardware swaps without the tedious wire routing typical of older designs.

Getting the Kobra S1 operational takes under an hour, but success hinges on avoiding a few unwritten mechanical gotchas. The printer arrives well-braced with bright shipping screws locking down both the ACE 2 Pro unit and the internal print bed. A recurring user oversight involves leaving the rearmost bed hold-down screw secured, which stalls initial homing. More critically, the quick-start guide omits factory belt tension verification. Multiple owners discovered loose belts right out of the box, requiring manual adjustment before running the LeviQ 3.0 auto-leveling sequence. Once past physical unpacking, the software side is polished: the large color touchscreen handles resonance compensation, input shaping, and multi-point bed probing with minimal fuss.

Motion performance is rapid and precise, with acceleration curves that minimize print artifacts. Print quality matches modern expectations: dimensional accuracy is sharp, vertical layer lines are virtually invisible on standard PLA runs, and overhangs cool cleanly. Multicolor execution is handled through single-nozzle purge cycles, which naturally generate waste material and extend print times, but toolhead changes remain reliable across long runs. The primary mechanical vulnerability is what we term retraction snag friction. During repetitive multi-material swaps, aged or brittle filament can shear off between the direct-drive extruder gears and the heatbreak, requiring a partial teardown of the printhead. Keeping filament thoroughly conditioned inside the active dryer is critical to preventing these feed jams.

The software ecosystem relies on Kobra OS running local tasks, supplemented by Anycubic's slicer based on the proven Prusa open-source platform. Slicing presets for native materials yield clean prints without requiring immediate profile tweaking, and wireless model transmission works consistently over standard home Wi-Fi. The ecosystem is not without minor bugs. Several owners note that if a mobile phone display goes to sleep while monitoring a print via the integrated webcam, the printer firmware may hold the video stream open, requiring a machine reboot to restore remote visual monitoring. Cloud job initiation and basic print progress tracking, however, perform reliably.

The true differentiator for this package is the ACE 2 Pro unit. While competing ecosystems sell multi-material feeder units that rely strictly on passive desiccant packs, Anycubic includes an active 65C heating chamber that dehydrates hygroscopic filaments while printing. For users producing functional mounts and brackets out of technical materials, this eliminates the hidden equipment cost of dedicated standalone filament ovens. In terms of long-term reliability, Anycubic has demonstrated an uncommonly responsive customer support framework. When early production runs suffered from isolated leveling sensor faults or shipping-related hotend damage, the company routinely provided prompt modular replacements and detailed diagnostic guidance without protracted disputes.