Printing with Dental LT resin there is a section of the build platform which is covered in a thin layer of cured resin after every print. It is always the same area and it only occurs with Dental LT resin. The part print perfectly elsewhere on the platform.
I have tried a new build platform, resin tank and cleaned the optical window. There is no contamination on the main mirror.
Has anyone else experienced this? It’s like there is some refraction of light from somewhere onto the print area -_-.
Presumably the Dental LT cures faster than the other resins (judging from its reduced print times).