How long are the PEI sheets supposed to work?

[JonRaymond]

@luro02

The last few weeks I had used my smooth pei sheet, and yesterday I wanted to switch back to the golden pei sheet. Before that, I gave it a good scrub with hot water and dish soap (for several minutes) to hopefully solve the aforementioned adhesion issues, but the result was worse than before I last used it.

Just checking that you resliced the model for a textured sheet? Running a file generated for a smooth pei sheet on a textured sheet will have issues especially on a P series printer as it can’t differentiate between plates and generate an error like the X series can.

@luro02

Is there anything I could try out/have missed?

Scuffing the plate with fine steel wool will often rejuvenate a failing textured plate. There are also reports that Magic eraser will rejuvenate them.

Bambu Lab Textrued PEI Plate Cleaning Guide

I learned this one early on! Any time a print fails, the first thing I do is give my build plate a thorough cleaning! Dish soap and warm water have worked great for me. Once that didn’t quite cut it and I used a Magic Eraser (Melamine Sponge) on it also. That build plate was like new!