Fast and Reliable Printing
The MK4S is built for speed without sacrificing quality. The new 360° cooling system allows for better overhangs and finer details, reducing the need for supports. The high-flow nozzle improves filament flow, cutting down print times while maintaining precision.
Easy to Use, Right Out of the Box
Setting up the MK4S is simple. Just unbox, plug it in, run a quick calibration, and start printing within 15 minutes. The user-friendly interface is great for beginners, while experienced users will appreciate the reliable performance.
Works with Many Materials
The MK4S handles a variety of filaments, including PLA, PETG, ASA, carbon-filled materials, and flexible TPU. The direct-drive extruder makes printing flexible materials smooth and hassle-free.
Built to Last
Like all Prusa printers, the MK4S is made to run continuously with minimal maintenance. The open design allows for easy access to parts, and all components are built for durability.
Offline and Secure
You can run the MK4S completely offline if needed. The Wi-Fi module can be removed for added security, and Prusa does not collect print data without consent.
Expandable with Add-ons
The MK4S supports optional upgrades like the MMU3 for multi-material printing and an enclosure for improved temperature control when printing advanced materials.
Whether you're printing for fun, work, or education, the MK4S delivers quality results with a simple and efficient workflow.
| Measurements | |
|---|---|
| Build Volume | 250 x 210 x 220 mm | 9.84 x 8.3 x 8.6 in |
| Filament diameter | 1.75 mm |
| Layer height | 0.05-0.30 mm |
| Printer dimensions (without spool) | 7 kg, 500×550×400 mm; 19.6×21.6×15.7 in (X×Y×Z) |
| Electronics | |
| Mainboard | Custom 32-bit xBuddy electronics with STM32 |
| Stepper Drivers | Trinamic 2130 |
| Stepper motors | Precise 0.9° X,Y stepper motors (prevents VFA) |
| Extruder | |
| Extruder | Nextruder, Direct Drive, E3D V6 compatible (with adapter) |
| Extruder electronics | Custom breakout board for connecting fans, thermistors and other parts. |
| Filament path | Aluminum heatsink, all-metal hotend |
| Drive system | Nextruder Planetary Gear System, 10:1 gearbox ratio |
| Cooling fan | High-performance turbine, 360° cooling system |
| Nozzle | High-flow Prusa Nozzle brass CHT - 0.4 mm |
| Max. operating temperature | |
| Max nozzle temperature | 290 °C / 554 °F |
| Max heatbed temperature | 120 °C / 248 °F |
| Controls | |
| LCD screen | 3.5″ graphic 65k color screen |
| Connectivity | NFC receiver, optional ESP Wi-Fi module (delivered with the printer) |
| Print medium | USB drive / LAN / internet via Prusa Connect |
| Sensors | |
| Advanced sensors | Filament sensor, Loadcell sensor, Power panic, 4 high-precision thermistors (genuine Semitec) + fan motors RPM monitoring |
| Print surface | |
| Print surface | Magnetic heatbed with removable PEI spring steel sheets |
| Calibration | |
| Bed calibration | Automatic, Mesh Bed Leveling (only on print area) |
| Materials | |
| Supported materials | PLA, PETG, Flex, PVA, PC, PP, CPE, PVB and when using the Original Prusa Enclosure with filtration add-on ABS, ASA, HIPS, PA |
| Power | |
| PSU | 240W, custom made by Delta with Power Panic HW |
| Power consumption | PLA settings: 80W / ABS settings: 120W |