Continuous extruded bead object fabrication apparatus

An apparatus for producing large and small objects comprising:

• an object support platform upon which an object is to be created;
• a source of curable viscous liquid including an outlet liquid tube through which said liquid is flowable and terminating in a nozzle tip through which said viscous liquid is to be extruded, said nozzle tip being located directly adjacent and above said object support platform, viscous liquid from said source is sufficiently viscous to be capable of retaining its shape while being deposited directly on said object support platform, said viscous fluid being curable into a solid when subjected to light energy, horizontal relative movement to occur between said object support platform and said nozzle tip while said nozzle tip is continuously extruding said viscous liquid while ultraviolet light continuously strikes said viscous liquid that is extruded and affects a cure thus forming the first layer and basic shape of said object to be fabricated, after completion of said first layer vertical relative movement to occur between said object support platform and said nozzle tip of a distance equal to the thickness of said first layer in a direction away from said object support platform preparing said nozzle tip to initiate making a second layer of said object and so on until said object is completed;
• programmable means to produce said relative movement, said programmable means to be preprogrammed according to the size and shape of said object, said programmable means directing said relative movement along with controlling the flow of said viscous liquid;
• an ultraviolet light source emitting a light beam directed toward said nozzle, said light beam to cure said viscous liquid;
• a light shield mounted on said outlet tube and located directly adjacent said nozzle tip, said light shield preventing premature solidification of the extruded said viscous liquid which would cause clogging of said nozzle tip, said light shield being located between said light source and said nozzle tip, said light shield comprising a washer shaped structure shadowing said nozzle tip;
• and
• a cone-shaped light observing window attached to said outlet tube and said light source, said outlet tube and said light source being fixedly secured to said light observing window, said light observing window surrounding said light beam and said nozzle tip, said light observing window permitting observing of said light beam by a human being without causing injury to the eyes of the human being.