Prusa MK4S Repair

The Prusa MK4S, Prusa’s 2024 iteration of its flagship 3D printing workhorse. The printer features a metal frame and a print area of 250 x 210 x 220 mm. Compared to its predecessor, the MK4S offers marginal improvements, including enhanced part cooling and increased print speeds. Users can upgrade from a Prusa i3 to the MK4S using the provided upgrade kit.

• Print Area:
  • X: 9.84 in (250 mm)
  • Y: 8.3 in (210 mm)
  • Z: 8.6 in (220 mm)
• Filament Diameter: 1.75 mm
• Layer Height: 0.05 - 0.30 mm
• Weight: 15.43 lb (7 kg)
• Printer Dimensions (No Spool)
  • X: 21.6 in (500 mm)
  • Y: 21.6 in (550 mm)
  • Z: 15.7 in (400 mm)

• 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 w/ 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: 554 °F (290 °C)
• Max heatbed temperature: 248 °F (120 °C)

• LCD Screen: 3.5″ graphic 65k color screen
• Touch Control: Yes
• Firmware update interface:
  • USB drive
  • Prusa Connect
  • Prusa Mobile App
• Prusa Connect Support: Yes
• Prusa App:
  • iOS Support
  • Android Support
• Quick-Swap Nozzle System: Yes
• Lighting: No

• MMU3 Support: Yes
• GPIO Board Compatibility: Yes
• Accelerometer Compatibility: Yes

• Ethernet Connection: Yes
• Wi-Fi:
  • NFC receiver
  • Optional ESP Wi-Fi module (delivered with the printer)

• Filament Sensor: 1 sensor
• Loadcell Sensor: Yes
• Power Panic: Yes
• Thermistors: 4 high-precision thermistors (genuine Semitec)
• Fan RPM Motors Monitoring: Yes

• Print Medium:
  • USB drive
  • LAN
  • internet via Prusa Connect
  • Mobile Prusa App
• Print Surface: Magnetic heatbed w/ removable PEI spring steel sheets
• First Layer Calibration: Fully automatic
• Bed calibration: Automatic, Mesh Bed Leveling (only on print area)
• Input Shaper: Yes
• Supported materials:
  • PLA
  • PETG
  • Flex
  • PVA
  • PC
  • PP
  • CPE
  • PVB
• Supported Materials Using Advanced Filtration System:
  • ABS
  • ASA
  • HIPS
  • PA

• PSU: 240W
• Power Panic: Custom made by Delta with Power Panic HW
• Power Consumption:
  • PLA settings: 80W
  • ABS settings: 120W

• Prusa MK4S Assembled 3D Printer
• Smooth PEI Print Sheet
• 3D Printing Handbook
• 1 kg Prusament PLA Prusa Galaxy Black
• USB w/ Sample G-Code Prints
• Alcohol-saturated wipes
• Acupuncture Needle
• Toolset:
  • Uni-wrench
  • 13-16 wrench
  • Nose pliers
  • Allen and torx keys
• Spoolholder
• Prusa Lubricant for Bearings
• 3D Printing Handbook

• Official Prusa MK4S Product Page