Additive fabrication method

Details Additive fabrication method Additive fabrication method

1996-03-26

1997-08-12

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Stereolithographic shaping from liquid precursor

264 407, 264308, B29C 3508, B29C 4102, B29C 4152

Patent

active

056562306

ABSTRACT:
An additive fabrication method using a fluid construction material which can be solidified, trowels defining first and second surfaces, and a nozzle for delivering fluid material to a predetermined location, including the steps of moving the trowels and nozzle along a predetermined path defining an enclosed area, delivering fluid material to the nozzle to extrude the material in a layer as the nozzle is moved along the path, with the first and second surfaces moving with the nozzle to produce a wall of the extruded material forming an enclosed area with a shaped outer surface and a shaped top surface, and delivering fluid material to the enclosed area.

REFERENCES:
patent: 4247508 (1981-01-01), Housholder
patent: 4734021 (1988-03-01), Maddock
patent: 4749347 (1988-06-01), Valavaara
patent: 5059266 (1991-10-01), Yamane et al.
patent: 5260009 (1993-11-01), Penn

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