PEI Spring Steel Build Plate for AnyCubic Kobra S1 / S1 Combo (MPN S010261)

The PEI Spring Steel Build Plate for AnyCubic Kobra S1 / S1 Combo is a replaceable magnetic print surface engineered to fit the AnyCubic Kobra S1 series. It features a textured PEI coating bonded to spring steel that provides reliable first-layer adhesion for a wide range of FDM filaments and allows parts to detach more easily as the plate cools. The plate is designed for quick installation and removal, supporting efficient bed swaps and repeatable printing results while maintaining a flat, reusable surface throughout multiple print cycles.

Advantages

This PEI spring steel plate combines a durable spring steel substrate with a textured PEI surface to balance adhesion and release. The magnetic backing enables fast removal and replacement of the build plate for streamlined workflow, while the steel core helps resist warping and keeps the print surface flat. The textured PEI finish reduces the need for additional adhesives for many common filaments and simplifies post-print part removal as the plate cools.

Suitable for

• FDM 3D printing with the AnyCubic Kobra S1 or Kobra S1 Combo
• Printing PLA, PETG and other common filaments that adhere well to PEI
• Users who need quick bed swaps and easy part removal
• Repeated printing workflows requiring a flat, reusable surface

When it may not be suitable

This build plate is intended specifically for the AnyCubic Kobra S1 series and may not fit other printers without modification. Extremely high-temperature filaments or materials that require specialized surfaces (for example certain nylon blends or flexible materials that benefit from glue or tape) might not perform optimally on a standard textured PEI finish without additional bed preparation.

Key specifications

• Surface coating: textured PEI for improved adhesion and release
• Substrate: spring steel for flatness and durability
• Attachment: magnetic backing for quick install/removal
• Compatibility: designed to fit AnyCubic Kobra S1 and Kobra S1 Combo build platform
• Reusability: suitable for repeated print cycles with proper care

How to use

Align the magnetic backing of the PEI spring steel plate with the printer's heated bed and allow it to attach securely. Perform the usual bed leveling or mesh bed compensation as required by the Kobra S1 firmware with the plate in place to ensure a correct first-layer height. For most filaments, print at recommended bed and nozzle temperatures for the chosen filament; allow the plate to cool after printing to facilitate easier part removal. Clean the PEI surface with isopropyl alcohol or mild soapy water when needed and avoid abrasive scrubbing that could damage the textured finish.

What to consider before purchase

• Verify compatibility with AnyCubic Kobra S1 or Kobra S1 Combo build plate dimensions
• Consider the filament types you print most often and whether textured PEI suits them
• Plan for routine cleaning and gentle handling to maintain the PEI surface
• Remember that very high-temperature or specialty materials may need additional surface preparation

Usage recommendations

Use moderate nozzle and bed temperatures appropriate for your filament, perform a final bed leveling after installing the plate, and let prints cool before removing parts. Regularly clean the PEI surface with isopropyl alcohol to maintain adhesion and avoid using sharp metal tools directly on the PEI to prevent scratches.