Deletion of Lap circle (2nd nomination)

Comment: per nom.  I've actually noticed this one before while patrolling orphaned articles, and was never able to actually find any in-depth sources that would actually indicate notability.  There is certainly stuff out there that shows that , but that is not a valid reason to keep an article.  Even the sources introduced in this AFD are nothing more than instructions for how to do it
Stance: delete
Cited policy: Wikipedia:Arguments to avoid in deletion discussions (WP:ITEXISTS)