Original Prusa MK4
Original Prusa MK4
Printer Highlights
About Original Prusa MK4
Original Prusa MK4 is an open-frame Cartesian FDM 3D printer with a 250 × 210 × 220 mm build volume, up to 250 mm/s print speed, a 290°C hotend, a 120°C heated bed, a direct drive extruder, auto bed leveling, and up to 5-color printing support.
General Information of Original Prusa MK4
Printer Name
Original Prusa MK4
Brand
Prusa Research
Series
Original
Release Date
March 29, 2023
Build Volume & Chassis of Original Prusa MK4
Build Volume
250 x 210 x 220 mm (9.8 x 8.3 x 8.7 in)
Build Volume (X)
250 mm (9.8 in)
Build Volume (Y)
210 mm (8.3 in)
Build Volume (Z)
220 mm (8.7 in)
Enclosed Chamber
No
Frame Type
Die-cast aluminum vertical frame with aluminum extrusion base
Machine Size
500 x 550 x 400 mm (19.7 x 21.7 x 15.7 in)
Machine Weight
7.3 kg (16.1 lbs)
Motion System & Kinematics of Original Prusa MK4
Kinematics Type
Cartesian
Motion Axis Type
Dual leadscrew stepper motors with exact steps
Kinematics Layout
Bedslinger (Cartesian-XZ-Head)
Rail System
Precision 10mm and 8mm smooth rods with Misumi bearings
Dual Z-Axis
Yes
Extruder & Toolhead of Original Prusa MK4
Extruder Type
Direct Drive
Toolhead Count
1
Filament Diameter
1.75 mm
Nozzle Diameter
0.4 mm
Nozzle Material
Brass
Supported Nozzle Diameters
0.25 mm, 0.4 mm, 0.6 mm, 0.8 mm
Max Nozzle Temp
290°C
Multi-Material Ready
Yes
Max Colors / Materials
5 Colors
Multi-Material System
Original Prusa MMU3 (Optional Add-on, Up to 5 Colors)
Bed & Thermal System of Original Prusa MK4
Build Plate Type
MK52 magnetic heatbed with removable PEI spring steel sheet
Heated Bed
Yes
Max Bed Temperature
120°C
Actively Heated Chamber
No
Print Speed & Performance of Original Prusa MK4
Max Print Speed
250 mm/s
Typical Print Speed
150 mm/s
Max Acceleration
4,000 mm/s²
Max Flow Rate
20 mm³/s
Min Layer Height
0.05 mm
Max Layer Height
0.35 mm
Speed Benchy Time
55 min
Automation & Electronics of Original Prusa MK4
Auto Bed Leveling
Yes
Leveling Sensor Type
Load-cell sensor fully automatic first-layer calibration
Filament Runout Sensor
Yes
Power Loss Recovery
Yes
Input Shaping (Resonance)
Yes
Built-in Camera
No
First Layer LiDAR
No
Part Cooling Fan
High-Speed Blower Fan
Hotend Fan
Axial Cooling Fan
Software & Connectivity of Original Prusa MK4
Firmware
Prusa Buddy Firmware
Compatible Slicers
PrusaSlicer
Connectivity
Wi-Fi, Ethernet LAN, USB Type-A
Display Screen
3.5-inch 65k color graphic LCD with rotary knob
Input Voltage
100-240V AC
Special Features
Load-cell sensor for 100% reliable first layer without user calibration, Nextruder lightweight direct drive assembly, Input Shaping and Pressure Advance pre-configured, 32-bit xBuddy mainboard
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