Method for building three-dimensional models from thermoplastic modeling materials
First Claim
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1. An additive method for building a three-dimensional model by depositing a moisture-sensitive thermoplastic material, comprising the step of:
- supplying the thermoplastic material in a container maintained at less than 700 ppm moisture.
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Abstract
Disclosed are a method and apparatus for building three-dimensional models by deposition modeling techniques from moisture-sensitive thermoplastics. A feedstock of thermoplastic modeling material is dried to a low moisture content and supplied to a dispensing head of a modeling apparatus. The dry thermoplastic material is heated in a liquifier and deposited in a predetermined pattern so as to build a three-dimensional model.
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7 Claims
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1. An additive method for building a three-dimensional model by depositing a moisture-sensitive thermoplastic material, comprising the step of:
supplying the thermoplastic material in a container maintained at less than 700 ppm moisture. - View Dependent Claims (2, 3)
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4. An additive method for building a three-dimensional model by depositing a moisture-sensitive thermoplastic material, comprising the steps of:
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providing the thermoplastic material in solid form;
drying the thermoplastic material to less than 700 ppm moisture; and
supplying the dry thermoplastic material to a dispensing head. - View Dependent Claims (5, 6, 7)
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Specification