Penetration barrier for additive manufacturing
First Claim
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1. A non-transitory processor readable medium having instructions thereon that when executed cause an additive manufacturing machine to:
- form a first layer of build material;
form a second layer of build material over the first layer;
selectively add a coalescing agent to the second layer;
solidify build material in the second layer to form a slice; and
before the second layer of build material is formed, form a barrier, using the build material of the first layer, that is separable from the slice, such that the coalescing agent applied to the second layer is prevented from penetrating into the build material in the first layer.
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Abstract
In one example, a non-transitory processor readable medium with instructions thereon that when executed cause an additive manufacturing machine to: form a first layer of build material; form a second layer of build material over the first layer; solidify build material in the second layer to form a slice; and form a barrier that is separable from the slice to prevent a coalescing agent in the second layer penetrating build material in the first layer.
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Citations
16 Claims
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1. A non-transitory processor readable medium having instructions thereon that when executed cause an additive manufacturing machine to:
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form a first layer of build material; form a second layer of build material over the first layer; selectively add a coalescing agent to the second layer; solidify build material in the second layer to form a slice; and before the second layer of build material is formed, form a barrier, using the build material of the first layer, that is separable from the slice, such that the coalescing agent applied to the second layer is prevented from penetrating into the build material in the first layer. - View Dependent Claims (2, 3, 4, 5)
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6. A process for making a three dimensional object, comprising:
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forming a first layer of build material; forming a second layer of build material over the first layer; adding coalescing agent to the second layer; before the second layer of build materials is formed, forming a barrier using the build material of the first layer to prevent the coalescing agent in the second layer from penetrating into the build material in the first layer; solidifying build material in the second layer to form a slice of the object; and separating the slice from the barrier. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A process for making a three dimensional object, comprising:
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forming a first layer of build material; forming a barrier from the build material of the first layer to prevent coalescing agent in second layer from penetrating into the build material in the first layer; forming the second layer of build material over the first layer; adding coalescing agent to the second layer; solidifying build material in the second layer to form a slice of the object; and separating the slice from the barrier; wherein forming the barrier includes coalescing build material in the first layer or solidifying build material in the first layer or coalescing and solidifying build material in the first layer. - View Dependent Claims (14, 15, 16)
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Specification