PolyJet 3D Printing

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PolyJet is an industrial 3D printing process that builds multi-material prototypes with flexible features and complex parts with intricate geometries in as fast as 1 day. A range of hardnesses (durometers) are available, which work well for components with elastomeric features like gaskets, seals, and housings.

Common applications for PolyJet 3D printing:

PolyJet Design Guidelines and Capabilities

Our basic guidelines for PolyJet include important design considerations to help improve part manufacturability, enhance cosmetic appearance, and reduce overall production time.

Maximum Part Size19.3 in. x 15.4 in. x 7.9 in.490mm x 390mm x 200mm
Layer Thickness0.00118 in.30 microns
Minimum Feature Size0.012 in.0.3mm
Minimum Freestanding Wall, Hole, or Channel Size0.030 in.0.76mm

Tolerances for PolyJet: 
For well-designed parts, tolerances of ±0.005 (0.1mm) for the first inch plus ±0.001 in./in. (0.001mm/mm) for each additional inch can typically be achieved. Note that tolerances may change depending on part geometry.

PolyJet Material Options

PolyJet provides the ability to choose a desired hardness or combine material properties into a single build, which makes it ideal for prototyping overmolding parts. Shore A hardnesses of 30A, 40A, 50A, 60A, 70A, 85A, 95A, and rigid are available in these colors:

Compare PolyJet Material Properties

Our PolyJet 3D Printers

We use multiple additive machines that offer large build sizes, accurate parts, and quick production times. Our PolyJet equipment consists of:

How Does PolyJet 3D Printing Work?

The PolyJet process begins by spraying small droplets of liquid photopolymers in layers that are instantly UV cured. Voxels (three-dimensional pixels) are strategically placed during the build, which allow for the combination of both flexible and rigid photopolymers know as digital materials. Each voxel has a vertical thickness equal to the layer thickness of 30 microns. The fine layers of digital materials accumulate on the build platform to create accurate 3D-printed parts.

Each PolyJet part is completely coated in support material during the build, which ultimately is removed by hand using a pressurized water stream and a chemical solution bath. No post-curing is required after the manufacturing process.

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