Hi All! Haven't been here for some time, the changes are looking good! Anyway, formalities aside, I am having serious problems sourcing and implementing a suitable stainless steel (Grade: 304; thickness: 0.3mm) substrate for my etching process. I'm currently working on developing a microfluidic, micro-channel array in a conductive metal substrate, however, nothing that I can seem to procure is straight and flat enough for me to work with, do any of you prestigious fellows have some highfalutin companies from which I could purchase a conductive metal sheet (preferably SS 304) of the aforementioned dimensions? I implore you, good people of the PF whom I have so long abandoned!