Prusa Expansion Joints Set
This product is a replacement Prusa Expansion Joints Set for the heatbed.
Compatible with:
MK3.5/SMK3.9/SMK4MK4/SCORE One/+
Our Prusa CORE One Smooth PEI Print Sheet is a replacement Spring Steel Sheet With Smooth Double-sided PEI compatible with:
CORE One/+
The steel sheet color may differ from the product picture (black, gold, green, MK4, Core1 etc). The smooth PEI surface on the steel sheet, as well as all other properties, remain the very same for all color versions.
The MK52 heatbed has embedded high Curie temperature magnets. These magnets are able to firmly hold removable spring steel sheets. The Spring Steel Sheet With Smooth Double-sided PEI uses the same PEI sheets as on the MK2/S. The Prusa CORE One Smooth PEI Print Sheet is the best solution for printing PLA and it has great adhesion with almost all materials. The bottom of your prints will be smooth.
You can leave small marks on the print surface with your nozzle or tools, they will typically be shinier than the rest. It does not affect functionality or adhesion. However, if you want to have the same surface look on the whole printbed you can resurface it. The easiest way is to take the hard side of a dry kitchen sponge and wipe the affected area with a circular motion gently a few times.
Find more details about the spring steel sheets in Prusa's knowledgebase.
Note:
Consumable parts, such as PEI sheets (smooth, textured, etc.) are not covered by warranty as the coatings are designed to diminish over time unless failure has occurred due to a defect in materials or workmanship. Cosmetic damage, including but not limited to scratches, dents, cracks or other cosmetic damage is also not covered by the warranty. Only defective sheets on arrival are covered by warranty.
Tiny dots may appear on the PEI-Ultem steel sheet surface. These can slightly affect the finished print bottom surface. However, they do not impact the printing process, reliability in any way. We do not consider these dots a reason for a warranty claim.

This product is a replacement Prusa Expansion Joints Set for the heatbed.
Compatible with:
MK3.5/SMK3.9/SMK4MK4/SCORE One/+
Prusament PLA Prusa Azure Blue 1.75mm 1kg is an in-house-made filament at Prusa Research. The whole manufacturing process is closely monitored and tested - guarantee ±0.02mm precision and highly consistent colors. You can inspect the parameters of every spool made at prusament.com.
Replacement Prusa Bearing Clips MK4 set for the y-carriage (y-axis).
Compatible with:
This product is a replacement Extension board.
Compatible with:
COREOne/+CORE One L
Our Hotend PTFE Tube (MK3S+, MMU2S) is the replacement hotend PTFE tube
The Prusa XL PEI Smooth Print Sheet is a double-sided smooth spring steel sheet for Original Prusa XL
XL
Our Prusa Thumb Screw M4x8 is a replacement screw for the Nextruder compatible with:
MK3.9MK4CORE One/+ CORE One L
These Genuine E3D premium DiamondBack Prusa nozzles bring you the most extreme Nextruder Nozzle solution to date.
Compatible with:
MK3.9MK4/SCOREOne/+CORE One LXL
Advanced Filtration for Prusa CORE One with HEPA and carbon filters is useful when printing ASA and other materials that produce larger volumes of ultra-fine particles and fumes during printing.
This spare part is compatible with:
CORE One/+ CORE One L
Our Prusa Power Panic Cable (Einsy) is the replacement PSU to Einsy power panic cable. It is ONLY compatible with the black housing PSU.
Prusament PLA is an in-house-made filament at Prusa Research. The whole manufacturing process is closely monitored and tested - guarantee ±0.02mm precision and highly consistent colors. You can inspect the parameters of every spool made at prusament.com.
Prusament PETG Lipstick Red 1.75mm 1kg is an in-house-made filament at Prusa Research.
The whole manufacturing process is closely monitored and tested.
Guarantee ±0.02mm precision and highly consistent colors.
You can inspect the parameters of every spool made at prusament.com.
Prusament PEI 1010 is an in-house-made filament at Prusa Research. Prusament PEI 1010 filament is designed for applications that demand high durability and stability under thermal stress, making it ideal for use in aerospace, automotive, and industrial components.
The whole manufacturing process is closely monitored and tested.
Guarantee ±0.05mm precision and highly consistent colors.
You can inspect the parameters of every spool made at prusament.com.
This product is a replacement NTC thermistor for the Nextruder Heatsink
Compatible with:
MK3.9/SMK4/SCOREOne/+CORE One L
The Prusa XL LCD cable is the replacement LCD cable for the Original Prusa XL.
Our Prusa CORE One Smooth PEI Print Sheet is a replacement Spring Steel Sheet With Smooth Double-sided PEI compatible with:
CORE One/+