Spring Steel PEI Print Sheet for Prusa Mini+ (textured) – Prusa PSA-19934

Spring Steel PEI Print Sheet for Prusa Mini+ (textured) is a flexible, replaceable build surface intended for the Prusa Mini+ magnetic bed. The sheet combines a spring steel base with a textured PEI coating to offer reliable first-layer adhesion for common FFF/FDM materials and simplified part removal after cooling. It is engineered to withstand routine printing cycles and to be compatible with typical desktop filaments used on the Prusa Mini+ platform.

Advantages

The textured PEI coating provides consistent adhesion during printing while reducing visible marks on the bottom surface of parts. The spring steel substrate enables easy flexing to detach finished prints without tools and returns flat when reinstalled on the magnetic bed. The replaceable design is compatible with the Prusa Mini+ build plate system, offering a durable surface that resists wear from repeated printing and simple maintenance by cleaning and occasional replacement.

Suitable for

• Everyday FFF/FDM 3D printing on Prusa Mini+
• Printing with PLA and PETG filaments
• Small to medium-sized models that benefit from textured bottom surfaces

Key specifications

• Surface: textured PEI coating for improved first-layer grip
• Base material: spring steel for flexible removal
• Compatibility: designed for the magnetic bed of Prusa Mini+
• Intended use: suitable for common desktop filaments including PLA and PETG
• Durability: wear-resistant coating formulated for repeated print cycles

How to use

Install the spring steel PEI sheet onto the Prusa Mini+ magnetic bed by aligning it with the bed magnet and pressing until it lies flat. Perform bed leveling and live Z-adjustment as required for your printer and filament. Start printing with standard first-layer settings for the chosen filament; adhesion typically improves when the bed and nozzle settings match recommended values for PLA or PETG. After a print finishes and the bed has cooled to room temperature, flex the spring steel sheet gently to release the part.

Usage recommendations

Clean the PEI surface with isopropyl alcohol or warm soapy water to remove oils and residues before printing. Avoid abrasive cleaners that could damage the textured coating. If adhesion becomes inconsistent, inspect the sheet for deep scratches or coating degradation and replace the sheet when necessary. Store spare sheets flat in a dry environment to prevent warping.