HP INCFollow

Abstract

Some 3D printing technologies generate 2D layers of a given thickness one on top of

another. For each layer, a uniform layer of powder is placed in the whole printer’s build

bed, and agent fluids are selectively placed at the specific points which are to be melt

to thereby form the part. One of the main advantages of these technologies is the

capacity to print small features and holes in arbitrarily any position of the geometry. This

enables the exploration of new applications, such as paper pulp molds. Paper pulp molds

require to print really tiny holes (around 500 microns diameter) along a geometry. This

presents many challenges both in FW/SW and Writing Systems such as the position of the

holes determination. Furthermore, each of the holes has to be properly printed and be

cleanable so that it allows the required flowability therethrough. Also, once determined

the positions of the holes, it is a challenge to find a robust mechanism to send it to the

printer as expanding the holes in a triangle mesh may lead to really big and

computationally expensive triangle meshes which are struggle to manage. This article

discloses a solution for this challenge by taking advantage of the 3MF displacement maps

capabilities to encode the holes in a more compact way.

Creative Commons License

Creative Commons License
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