The Original Prusa MK4S 3D Printer is the latest evolution of Prusa Research’s flagship model, designed for hobbyists and professionals seeking top-tier reliability and print quality. Featuring a redesigned 360° cooling system with a high-performance turbine, a high-flow nozzle, and firmware optimizations, it delivers faster prints with exceptional accuracy—up to twice as fast as the MK3S+. With a build volume of 250 x 210 x 210 mm, it supports multi-material printing with up to 5 colors via the optional MMU3 add-on, minimizing waste during filament changes. The MK4S offers automatic calibration, a direct-drive Nextruder for flexible materials, and seamless integration with PrusaSlicer and Prusa Connect for remote management. Built in the EU with a claim rate of less than 1%, this printer combines ease of use, durability, and precision for flawless 3D printing. Specifications Build Volume: 250 x 210 x 210 mm (9.84 x 8.27 x 8.27 inches) Printing Speed: Up to 200 mm/s (based on typical Prusa performance; exact speed not specified) Layer Height: 0.05–0.4 mm Extruder: Direct-drive Nextruder with loadcell sensor for precise first-layer calibration Nozzle: High-flow Bondtech CHT nozzle (0.4 mm standard, supports 0.2 mm, 0.6 mm, 0.8 mm) Nozzle Temperature: Up to 300°C Heatbed Temperature: Up to 100°C Cooling System: 360° cooling with high-performance turbine for precise filament shaping Leveling: Automatic bed leveling with loadcell sensor (unaffected by print surface type) Multi-Material Printing: Optional MMU3 add-on for up to 5 colors/materials (25–35 seconds per filament change) Supported Filaments: PLA, PETG, ABS, ASA, carbon-filled filaments, flexible materials (e.g., TPU) Connectivity: Wi-Fi, Ethernet, USB drive (supports Prusa Connect for remote management) Slicing Software: PrusaSlicer (with multi-material painting and waste-saving features) Display: Color touchscreen (size not specified, typically 3.2-inch for Prusa models) Firmware Features: Input Shaper and Pressure Advance for resonance elimination and optimized filament flow Dimensions: Approximately 500 x 500 x 550 mm (based on similar Prusa models) Weight: Approximately 14 kg (based on similar Prusa models) Power: 240W, 100-240V, 50/60Hz Additional Features: Designed and built in the EU with a claim rate of <1% (fewer than 20 returns per month from 10,000 shipped) Optional GPIO “hackerboard” for controlling external electronics via G-commands Optional accelerometer add-on for Nextruder modifications Open-source code for transparency and customization Setup in 15 minutes with automatic calibration and one-click printing