Patent ID: 6929234

Claim:
A plank and chamfer assembly for forming one or more precast panels on a casting surface, said assembly comprising a chamfer and a plank configured to be disposed in said chamfer, wherein: said chamfer comprises a base portion comprising an upper surface and a lower surface and a pair of lateral chamfer portions defining a unitary construction; each of said pair of chamfer portions comprises a lower projecting edge disposed at a lower end of said chamfer portion and an upper projecting edge disposed at an upper end of said chamfer portion, said lower projecting edge defining a discrete contact surface for engaging said casting surface such that a gap is defined between said lower surface of said base portion and said casting surface, said upper projecting edge defining a discrete contact surface for engaging said plank; and said chamfer is configured such that, upon placement of said plank into said chamfer, said lower projecting edge on each of said pair of chamfer portions forms a seal with said casting surface and said upper projecting edge on each of said pair of chamfer portion forms a seal with said plank.