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PRUSA MK4S

Direct DriveAuto-LevelBuddy
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Specifications

Prusa MK4S technical specifications
Build Volume250x210x220
Bed TypePEI Spring Steel
Max Nozzle Temp290°C
Max Bed Temp120°C
Hotend TypeAll-Metal
CoolingHigh-Flow Part Cooling Fan
Max Speed200 mm/s
Max Acceleration4000 mm/s²
Motion Systemi3
FirmwareBuddy
Nozzle Sizes0.4mm · 0.6mm · 0.8mm

Known Issues

warning

Extruder clogging

Occasional clogging in the extruder.

Mitigation: Regularly clean the nozzle and use high-quality filament.

See the full fix guide →

Filament Compatibility

PLAexcellentOptimized for PLA with great adhesion.
PETGexcellentHandles PETG well without problems.
ABSgoodRequires good ventilation, slight warping at corners.
ASAgoodSimilar to ABS, effective with an enclosure.
TPUexcellentWorks well due to direct drive system.
NylonfairHigher chances of warping, ideal with enclosure.
PCfairRequires high temperature and slow speed.

Maintenance Tips

Regularly clean the print bed with isopropyl alcohol to maintain adhesion.
Inspect and lubricate rails and bearings monthly for smooth operation.
Check and re-tighten belts every few weeks to ensure precise prints.

Popular Upgrades

Hardened steel nozzle for abrasive filaments.Amazon →
Enclosure for printing high-temperature materials.Amazon →
Additional print sheets for easy swaps.

Best For

High-quality prototype printingMulti-material printsFlexible filament creations

DIALED-IN SETTINGS

FixMyPrint generates exact slicer settings for the Prusa MK4S - calibrated for your filament and slicer in seconds.

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