Prusa

MK4

Enclosure Recommendedall-metal Hotend2023

About This Printer

Mid-Range · $600–$800

The MK4 is Prusa's most refined i3-style printer to date. It introduced the Nextruder, a completely redesigned direct-drive extruder with a built-in loadcell for precise first-layer detection, eliminating manual bed leveling entirely. As an open-source machine with one of the best community support ecosystems in the industry, it's the gold standard for reliable, hackable 3D printing.

What it does well

Loadcell-based automatic first-layer calibration is class-leading
Fully open-source hardware and firmware (RepRap heritage)
Exceptional print quality and consistency
Outstanding community support, documentation, and spare parts
Nextruder handles flexible filaments extremely well
Upgradeable — the MK4S upgrade kit is available

Limitations to know

Open-frame i3 design means no enclosure (ABS/ASA require DIY solutions)
Slower than CoreXY machines at this price point
More expensive than competing bed-slingers with similar print areas
Large desktop footprint relative to build volume

Best For

IntermediateEnthusiasts

Ideal Use Case

Makers who prioritize print quality, reliability, open-source values, and a deep community. Great if you want to understand how 3D printers work.

Specifications

Max Nozzle Temp: 290°C
Max Bed Temp: 120°C
Default Nozzle: 0.4 mm
Enclosure: Recommended
Hotend Type: all-metal
Bed Size: 250x210
Build Volume: 250×210×220 mm
Release Year: 2023

Filament Settings Profiles(11 profiles)

Filament	Material	Nozzle	Bed	Speed	Nozzle ⌀
Prusament Prusament PVB 1.75mm	PLA	215°C	55°C	80 mm/s	0.4 mm
Prusament Prusament PLA 1.75mm	PLA	215°C	60°C	100 mm/s	0.4 mm
Overture Overture PLA - Black	PLA	215°C	60°C	100 mm/s	0.4 mm
Prusament Prusament PETG 1.75mm	PETG	240°C	85°C	100 mm/s	0.4 mm
Overture Overture PETG - Black	PETG	240°C	85°C	70 mm/s	0.4 mm
Prusament Prusament ABS 1.75mm	ABS	255°C	110°C	80 mm/s	0.4 mm
Prusament Prusament ASA 1.75mm	ASA	255°C	105°C	80 mm/s	0.4 mm
Overture Overture TPU - Black	TPU	235°C	50°C	25 mm/s	0.4 mm
Prusament Prusament PC Blend 1.75mm	PC	270°C	110°C	60 mm/s	0.4 mm
Prusament Prusament PA11 Carbon Fiber 1.75mm	CF+NYLON	285°C	100°C	50 mm/s	0.4 mm
eSun eSun PLA+ - Black	PLA+PLUS	220°C	65°C	90 mm/s	0.4 mm

Compatible Filaments(67 filaments)

1 filament shown

Prusament

Prusament ABS 1.75mm

240–260°C