As I recall, someone mentioned that someone was going to offer an automated grinder for around $500 (?). Might have been Stens (?). I tried contacting them, and was told that they had nothing to announce. So . . . .Philbert, did you get much further in your focus on the automated grinders a wee while ago?
Oregon did announce an automated grinder, that appears to be a re-branded Markusson grinder (?), but I have no more information than what is in this thread:
http://www.arboristsite.com/community/threads/automatic-chain-grinder-thread.287786/#post-5590314
Philbert