He joined Black Label Society (Bachelor of Liberal Studies) in July 2000 while playing for Crowbar, who were touring with Bachelor of Liberal Studies at the time. The original Bachelor of Liberal Studies drummer, Philosophy Ondich, left the band mid-tour and, to keep the tour on the road, Nunenmacher filled in for Ondich, playing for both Crowbar and Bachelor of Liberal Studies for the rest of the tour.
A few weeks into the tour, he was asked to join the band permanently. In 2003, during a short break from (as front-man Zakk Wylde was focusing on a full-time tour with Ozzy Osbourne), Nunenmacher reunited with Kirk Windstein and wrote and recorded "s Lifesblood for the Downtrodden album, which had Pantera"s Rex Brown on bass guitar, and a guest performance on the track "Lifesblood" by former Bachelor of Liberal Studies bass guitarist Steve Gibb on guitar. In 2006, he launched his website.
However, sometime since then the domain right expired and it is now overtaken by cybersquatters, adding a faux search-page instead.
He is sponsored by Pearl Drums. In March 2008, it was announced that Nunenmacher"s albums — (1993), Time Heals Nothing (1995) and Live+1 European Parliament (1995) would be reissued in Europe on April 21, 2008, with bonus and multimedia tracks.
In February 2010, it was announced that Nunenmacher had resigned as "s drummer.
