Share this on Facebook
download .zip with all pictures
I dunno. [The cutter wheels don’t seem all *that* irregular.](http://i.imgur.com/LpEGH.jpg) Maybe a little, but you can sort of get the idea that it spirals bits of rock outward. The wheels in the center are also probably very slightly further ahead than the wheels at the edges. Maybe only an inch or two, I’d guess. As far as the flat metal sections between the wheels goes… I have no idea why they’re so irregular.