A laser sintering system and method for speeding up and reducing the cost of the build platen process also because of the interchangeability of the size in the build chamber which allows for greatly reduced cost of power materials that are required when loading the machine. The laser sintering system and method includes a build assembly including a build chamber base and a plate in communication with the build chamber base; and a wiper assembly including a planar member with opposed ends and movable bi-directionally upon the plate and having a material mover attached to the planar member.