Abstract: A method for removing substrate material from a part produced by a 3-D printer. The machine includes a housing having a working chamber defined therein. A spray header is disposed along at least a portion of the perimeter of the working chamber. A pump is configured and arranged to convey a fluid at varying pressures through the spray header. The fluid contacts the part and then flows to the bottom of the working chamber to a fluid outlet.

Abstract: A method for removing substrate material from a part produced by a 3-D printer. The machine includes a housing having a working chamber defined therein. A spray header is disposed along at least a portion of the perimeter of the working chamber. A pump is configured and arranged to convey a fluid at varying pressures through the spray header. The fluid contacts the part and then flows to the bottom of the working chamber to a fluid outlet.

Abstract: A machine for removing substrate material from a part produced by a 3-D printer. The machine includes a housing having a working chamber defined therein. A spray header is disposed along at least a portion of the perimeter of the working chamber. A pump is configured and arranged to convey a fluid at varying pressures through the spray header. The fluid contacts the part and then flows to the bottom of the working chamber to a fluid outlet.

Abstract: A method for removing substrate material from a part produced by a 3-D printer. The method includes providing a housing having a working chamber defined therein. The method further includes providing a spray header disposed along at least a portion of the perimeter of the working chamber. A pump is configured and arranged to convey a fluid at varying pressures through the spray header. Fluid contacts a part inserted into the working chamber and then flows to the bottom of the working chamber to a fluid outlet.

Abstract: A machine for washing and removing substrate material for parts produced by a 3D printer. The machine includes a working chamber and a disposal chamber. The machine has at least one inlet in fluid communication with the working chamber. The disposal chamber is disposed adjacent to the working chamber. A dividing wall is disposed between the working chamber and the disposal chamber. A pump conveys a working fluid to the at least one inlet in the working chamber. The disposal chamber and the working chamber are disposed in fluid communication such that working fluid passes from the working chamber to the disposal chamber. The machine may also include an ultrasonic generator for generating ultrasonic vibrations within the working chamber and a heater for warming the working fluid.

Abstract: A machine for processing a part produced by a 3-D printer. The machine includes a housing having a working chamber defined therein. A support structure is disposed at the bottom of the working chamber for supporting the part. The structure has at least one opening defined therein. A spray header is disposed along at least a portion of the perimeter of the working chamber. A pump is configured and arranged to convey a fluid at varying pressures through the spray header. The fluid contacts the part and then passes through the opening in the structure where it flows to the bottom of the working chamber to a fluid outlet.

Abstract: A method for removing substrate material from a part produced by a 3-D printer. The method includes providing a housing having a working chamber defined therein. The method further includes providing a spray header disposed along at least a portion of the perimeter of the working chamber. A pump is configured and arranged to convey a fluid at varying pressures through the spray header. Fluid contacts a part inserted into the working chamber and then flows to the bottom of the working chamber to a fluid outlet.

Abstract: A machine for removing substrate material from a part produced by a 3-D printer. The machine includes a housing having a working chamber defined therein. A spray header is disposed along at least a portion of the perimeter of the working chamber. A pump is configured and arranged to convey a fluid at varying pressures through the spray header. The fluid contacts the part and then flows to the bottom of the working chamber to a fluid outlet.

Abstract: A machine for processing a part produced by a 3-D printer. The machine includes a housing having a working chamber defined therein. A support structure is disposed at the bottom of the working chamber for supporting the part. The structure has at least one opening defined therein. A spray header is disposed along at least a portion of the perimeter of the working chamber. A pump is configured and arranged to convey a fluid at varying pressures through the spray header. The fluid contacts the part and then passes through the opening in the structure where it flows to the bottom of the working chamber to a fluid outlet.

Abstract: A machine for washing and removing substrate material for parts produced by a 3D printer. The machine includes a housing having a working chamber and a disposal chamber. The machine has at least one inlet in fluid communication with the working chamber. The disposal chamber is disposed adjacent to the working chamber. A dividing wall is disposed between the working chamber and the disposal chamber. A pump conveys a working fluid to the at least one inlet in the working chamber. The disposal chamber and the working chamber are disposed in fluid communication via a passageway such that working fluid passes from the working chamber to the disposal chamber. The machine may also include an ultrasonic generator for generating ultrasonic vibrations within the working chamber and a heater for warming the working fluid.

Abstract: A snow block erector set including a pair of substantially rectangular side walls, each side wall having a top edge, a bottom edge two side edges, an outside surface and an inside surface, each side edge of each side wall connecting one end of the top edge of each side wall to one end of the bottom edge of each side wall to form a top corner and a bottom corner, respectively, an aperture and lock pair disposed substantially on each of the top corners; a pair of substantially rectangular end walls, each end wall having two side edges; a pair of brace bars, each having two ends; and a channel disposed substantially along each side edge on the inside surface of each of the substantially rectangular side walls.

Abstract: A snow block erector set including a pair of substantially rectangular side walls, each side wall having a top edge, a bottom edge two side edges, an outside surface and an inside surface, each side edge of each side wall connecting one end of the top edge of each side wall to one end of the bottom edge of each side wall to form a top corner and a bottom corner, respectively, an aperture and lock pair disposed substantially on each of the top corners; a pair of substantially rectangular end walls, each end wall having two side edges; a pair of brace bars, each having two ends; and a channel disposed substantially along each side edge on the inside surface of each of the substantially rectangular side walls.

Abstract: An improved oxygen generator (20) includes an air compressor (21) having a pressure port (22) and a suction port (23) and being selectively operable to produce a flow of air from the suction port to the pressure port; a molecular sieve (30) having an inlet communicating with the compressor and having an outlet, the sieve being adapted to adsorb nitrogen from a flow of gas passing therethrough; a storage tank (33) communicating with the sieve outlet and adapted to store oxygen-rich gas passing through the sieve; and a control valve (24) operatively arranged between the compressor and the sieve and being selectively movable between a first position in which air flows from the compressor suction port through the sieve to the storage tank and a second position in which oxygen-rich gas flows from the storage tank through the sieve and control valve to desorb nitrogen in the sieve.