Overdue for a refresh — no successor announced yet. Prices should be at their lowest
Best for: Makers who need a very large print area for props, architectural models, or batch production — and want multicolor without paying professional-tier prices.
Full details →Late in cycle — but an upgrade kit is available. Existing owners can upgrade without buying new
🔧 Upgrade kit available — from MK4, MK3.5
Best for: Makers who value open-source hardware, community support, long-term repairability, and battle-tested reliability over raw speed or multicolor features.
Full details →| Anycubic Kobra 3 Max | Prusa Research MK4S | |
|---|---|---|
| Tier | Professional | Prosumer |
| Motion | BedSlinger | BedSlinger |
| Build Volume | 420 × 420 × 500 mm | 250 × 210 × 220 mm |
| Max Speed | 600 mm/s | 500 mm/s |
| Multicolor | ✅ 4 slots | ❌ No |
| Enclosure | ❌ | ❌ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ✅ |
| Upgrade Kit | — | 🔧 From MK4, MK3.5 |
| Released | Oct 15, 2024 | Mar 20, 2024 |
| Cycle length | ~450 days | ~730 days |
| Cycle advice | Wait | Upgrade Kit |
| Deals advice | Buy | Buy |
| Next model | — | Prusa MK5 (Expected 2027) |
One of the largest build volumes available at a consumer price — ideal for life-size props, large terrain tiles, and batch production.
Few printers offer multicolor at this scale. The ACE Pro system enables filament switching across the full 420×420 bed area.
Delivers large-format multicolor at a fraction of professional large-format printer costs.
MK4 and MK3.5 owners can upgrade to MK4S specs without purchasing a whole new printer. This is Prusa's commitment to owners and is unique in the industry at this level.
Firmware, PCB schematics, hardware designs, and slicing profiles are all published under open licenses. You own the printer completely.
Prusa's forum, knowledge base, and repair guides are unmatched. Parts are stocked and available for years after purchase.