Abstract: A method and system for molding a tissue or substitute tissue product in a mold having an exterior surface, and an interior surface, wherein at least one portion of the interior surface is porous and whose pores are in continuous communication with the exterior surface, and wherein said mold can be fabricated using solid free-form fabrication techniques is disclosed.

Abstract: A method and apparatus for dispensing and distributing a powder is disclosed that uses a rotary dispenser to dispense the powder by gravity onto a movable platen, the platen being movable to a position adjacent to a build bed where the powder can be distributed across the build bed using a spreader. The method and apparatus are also suited to dispensing of a plurality of powders used in build beds for solid free-form fabrication and three-dimensional printing. It is preferred that a powder contacting surface of the apparatus be coated with a coating selected from the group consisting of: an anodized finish, a hardcoat anodized finish, siloxane, baked enamel, electroplated enamel, electroless nickel, coated elastomer, laminated elastomer, dipped latex, sprayed latex, polyvinyl chloride, nylon, polytetrafluoroethylene, polyurethane, an epoxy resin, or a polyester.

Abstract: A method and apparatus for dispensing and distributing a powder is disclosed which uses a rotary dispenser to dispense the powder by gravity onto a movable platen, the platen being movable to a position adjacent to a build bed, where the powder can be distributed across the build bed using a spreader. The method and apparatus are also suited to dispensing of a plurality of powders used in build beds for solid free-form fabrication and three dimensional printing.