I make musical instruments called the BEAM. They are probably best known for the work of Mickey Hart during the Drums>Space section of Grateful Dead shows. This beam was carved thru powder coat and about .125" into the aluminum. To carve into the 6" - 6061 aluminum channel, I had to raise the legs of the Longmill 30x30 about 4". This Beam has trademarked images that I do not own and was not sold. It was a gift.