Well first i tried a PEI surface on a glas bed and black alunminium beneath. Big surprise it didn´t work. The deviations were extreme. The map looked like a landscape with a lot of mountains. Then i managed to get some PEI without the glue sheet preinstalled. As adviced i use a oven coating on it and placed it for two hours 170° in my domestic oven.
First impression after the installation. I´ve never expected that level of accuracy. I don´t remember the values but they were amazing and the repeatability...
But i had to use a little force to get some printings of the PEI. Doing so caused the coating to be partially seperated from the PEI. Luckily i use 3 Point Leveling to correct the tilt and the places where the sensor measures are still intact. But i´m afraid sooner or later the PEI will be unuseable for the Mini IR again...
I thought i share my experiences and ask for suggestions. Are PEI and the Mini IR a impasse?