Mid-cycle — watch for announcements before buying
🔧 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 →Mid-cycle — watch for announcements before buying
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 →| Prusa Research MK4S | Anycubic Kobra 3 Max | |
|---|---|---|
| Tier | Prosumer | Professional |
| Motion | BedSlinger | BedSlinger |
| Build Volume | 250 × 210 × 220 mm | 420 × 420 × 500 mm |
| Max Speed | 500 mm/s | 300 mm/s |
| Multicolor | ❌ No | ✅ 4 slots |
| Enclosure | ❌ | ❌ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ✅ | ❌ |
| Upgrade Kit | 🔧 From MK4, MK3.5 | — |
| Materials | PLA, PETG, ABS, ASA, TPU, PA, PC | PLA, PETG, ABS, TPU |
| Released | Mar 20, 2024 | Oct 15, 2024 |
| Cycle length | ~730 days | ~450 days |
| Cycle advice | Caution | Caution |
| Deals advice | Caution | Caution |
| Next model | Prusa MK5 (Expected 2027) | Kobra 4 Max (Expected late 2026) |
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.
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.