On edge though a table saw set at 30 degs. Or clamp the board to the side of a work bench, top edge of the board flush with the top of the bench. Lay the track on the bench and cut with saw at 30 deg. You would have to have a square edge on the bench top and a sacrificial piece between the bench and face of the board. Or you could put shim strips under the track, that would prop it up,say 30 regs, then set the saw to 30 regs. The last idea would probably be too finicky.
I'm assuming you mean 60 degs from the face of the board, since cutting 60 from the edge would be the same as cutting 30 deg from the face, which is simple enough to do.