摘要:
An imaging monitoring system and method for the establishment, monitoring and control of the positions, orientations and operational tolerances of and between the elements of an apparatus for fabricating three dimensional models from successive layers of model and sacrificial materials by capturing and analyzing images of a test patterns created on test surfaces of a three dimension model and elements of a system for fabricating three dimensional models.
摘要:
A combined scribing/filling device for scribing a desired channel, trough, trench or groove in a layer currently being fabricated and simultaneously filling the scribed channel, trough, trench or groove with a desired filling material. The combined scribing/filling device comprises (1) a scribing tool having a scribing tip which facilitates scribing of the desired channel, trough, trench or groove in the layer currently being fabricated; and a dispensing/shaping orifice for filling the scribed channel, trough, trench or groove with the filling material. The scribing tip is located coincident with respect to the dispensing/shaping orifice to facilitate simultaneously scribing and filling of the channel, trough, trench or groove. A method of fabricating a three dimensional model from a composite model formed by a plurality of layers, by simultaneously scribing and filling of the channel, trough, trench or groove is also disclosed.
摘要:
An apparatus and method of fabricating a three-dimensional model which reduces occurrence of one a hairline crack(s), stress fracture(s), break(s), flaw(s) and/or other imperfection(s) in the final three-dimensional model. The method comprising the steps of selecting the model material, selecting the sacrificial material, and adding at least one additive to the sacrificial material for at least one of increasing the thermal conductivity, decreasing a coefficient of thermal expansion or decreasing an ability of the sacrificial material to transmit stress to the model material. The three-dimensional composite model is built by depositing a plurality of layers one on top of another. Following completion of the three-dimensional composite model, using at least one of the increase in the thermal conductivity, the decrease in the coefficient of thermal expansion and the decrease in the ability of the composite sacrificial material to transmit stress to the model material for removing the composite sacrificial material from the model material without creating any hairline crack(s), stress fracture(s), break(s), flaw(s) and/or other imperfection(s) in the final three-dimensional model.