Method and apparatus for stereolithographic curl balancing

Details Method and apparatus for stereolithographic curl balancing Method and apparatus for stereolithographic curl balancing

1992-08-31

1993-08-24

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

118620, 118712, 156 54, 1562735, 1562755, 1563071, 156378, 1563796, 2504921, 264 401, 264308, 365106, 365107, 425135, 4251744, 427 8, 427508, 427553, 427554, B29C 3508, B29C 4102

Patent

active

052386392

ABSTRACT:
A method and apparatus for eliminating or substantially reducing curling effects in stereolithographically formed objects. Synergistic stimulation is applied to a curable material to form a three dimensional object through the build up of successive layers. Curling between successive layers is eliminated or substantially reduced by curing a balancing layer in relation to a balanced layer such that reverse curl of the balanced layer caused by the balancing layer offsets or negates normal curl of the balanced layer caused by the balancing layer.

REFERENCES:
patent: 4575330 (1986-03-01), Hull
patent: 4929402 (1990-05-01), Hull
patent: 5104592 (1992-04-01), Hull et al.

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