Original Prusa MK4S 3D Printer Fast and Precise Results without Compromise The Original Prusa MK4S is designed to deliver consistent, high-quality results for any project. An enhanced version of the widely acclaimed MK4—trusted by hobbyists and industry professionals—it offers improved precision and faster print speeds. With advanced features like 360° cooling, a high-flow nozzle, and optimized firmware, you can count on quick, top-tier 3D prints every time. Additional Features of the Original Prusa MK4S: Great for all Levels of 3D Printing The MK4S is built to meet your needs—whether you're new to 3D printing or a seasoned pro. Its user-friendly interface is intuitive enough for beginners, while its dependable performance makes it ideal for professional environments. Setup is quick and hassle-free: just unbox it, plug it in, run a short calibration, and you’ll be ready to start printing in just 15 minutes! Print Quality That Sets the Standard Though the MK4S is Prusa's fastest printer to date, it maintains exceptional quality with every print. Its finely optimized features and workflow ensure consistently precise results at impressive speeds—earning a flawless 30/30 Print Quality score in TechRadar’s review. Outstanding Dimensional Accuracy Dimensional accuracy is critical—especially for components requiring precise tolerances and seamless fit. The MK4S is engineered to deliver high-precision prints with minimal deviation from the original design. Accuracy has been independently verified using CT scan analysis, as shown below: 360° Cooling – Print without Supports Reduce the need for supports and print quicker with less material! Thanks to the 360° cooling, the MK4S allows you to print overhangs of up to 75° without supports, significantly cutting down on print costs and time. This also simplifies printing flexible materials like TPU, where removing supports is often a challenge. Next-Level Speed and Efficiency The Prusa MK4S is built for speed. With a powerful new turbine fan and 360° cooling, plus a high-flow nozzle that maximizes filament output, it dramatically reduces print times. Combined with fine-tuned firmware and optimized print profiles, the MK4S delivers fast, flawless results—so you can spend less time waiting and more time creating. Remarkable Surface Finish With the MK4S, your prints come out smooth and visually stunning, thanks to finely tuned print profiles that emphasize superior surface quality. Easily adjust the layer height to suit your project—from highly detailed miniatures using a 0.25mm nozzle to larger models where speed takes priority over fine detail. The Original Prusa MK4 vs MK4S: The following innovations are showcased in the MK4S: New high-performance 360° cooling system High-quality high-flow nozzle as standard* Native iOS/Android Prusa app for iOS and Android with easy Wi-Fi setup with an NFC tap Improved print speed Improved print quality New parts printed from Prusament PC Blend Carbon Fiber or injection molded Optional accessory such as the GPIO hackerboard and accelerometer for printer modders With the MK4S/MMU3 bundle, you will receive both nozzles in the package - the standard and the high-flow nozzle. Assembled MK4S in a bundle with MMU3, the standard nozzle will be pre-installed on the printer by default. 100% Privacy with Offline Mode without Compromise Prusa does not collect information about your prints or your printer’s surroundings without consent. No matter whether you’re developing a new-generation space shuttle, or just printing silly things for your friends, no organization should be interested in this information. This is why Prusa printers can be found in top companies, universities and research institutions around the world. Prusa printers are primarily designed for completely offline operation with no drawbacks or limitations. You have the option to share data with our tech support and connect your printer to the Prusa Connect remote print management system, but only if you choose to do so. The Prusa code is open source, so you can always check that Prusa isn’t cheating or stealing your files, even when you’re connected to the internet. Designed for Offline Use The MK4S has been designed for native offline use, so if you don’t want to use the network services, you don’t have to. The printer can be configured completely without internet access and there are no drawbacks or limitations. The Wi-Fi module can be easily unplugged for environments that require the highest level of security. What's in the Box: Assembled: Original Prusa MK4S Assembled 3D Printer Smooth PEI Print Sheet 3D Printing Handbook Toolset: Uni-wrench, 13-16 wrench, Nose pliers, Allen and torx keys Spoolholder Prusament PLA Prusa Galaxy Black 1kg Alcohol-saturated wipes, acupuncture needle USB drive with sample prints (G-codes) Prusa lubricant for bearings Kit: Original Prusa MK4S 3D Printer kit 2x 25g Prusament Sample 3D Printing Handbook Alcohol-saturated wipes, acupuncture needle Prusa lubricant for bearings Smooth PEI Print Sheet USB drive with sample prints (G-codes) Spoolholder *Warranty Note: Consumable parts, such as print sheets (smooth, textured, etc.), are not covered by the warranty since their coatings are expected to deteriorate over time, unless the failure is due to a defect in materials or workmanship. Cosmetic damage, which includes, but is not limited to, scratches, dents, cracks, or other aesthetic damage, is also not covered. Only sheets defective upon delivery are covered by the warranty. Technical Specifications: 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) Mainboard: Custom 32-bit xBuddy electronics with STM32 Stepper Drivers: Trinamic 2130 Stepper Motors: Precise 0.9° X,Y stepper motors (prevents VFA) 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 Nozzle Temperature: 290 °C / 554 °F Max Heatbed Temperature: 120 °C / 248 °F 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 Advanced Sensors: Filament sensor, Loadcell sensor, Power panic, 4 high-precision thermistors (genuine Semitec) + fan motors RPM monitoring Print Surface: Magnetic heatbed with removable PEI spring steel sheets Bed Calibration: Automatic, Mesh Bed Leveling (only on print area) 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 PSU: 240W, custom made by Delta with Power Panic HW Power Consumption: PLA settings: 80W / ABS settings: 120W
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