Stereolithography (SLA)

Stereolithography (SLA) Printing Service

Process Details

Printer Type:

Digital Light Processing (DLP) is a variant of Stereolithography (SLA). It uses a digital projector screen to flash an image on a thin layer of photocurable resin layer. The platform on which the part is built repositions itself in the resin tank layer by layer. The 3D Systems™ Figure 4 system we use can print parts in small batches and is ideally suited for same-day prototyping and low volume production jobs.

Visual Aspect:

DLP produces dense parts with high surface quality, dimensional accuracy and tight tolerances. Uncured resin is not self-supporting. Therefore, support structures must be created and the orientation of the part chosen carefully to minimize vestige marks after support removal.

Capabilities

Bounding Box:

4.9" x 2.8" x 13.6" (124 mm x 70 mm x 346 mm)

Resolution:

XY printing resolution .0025" (65 µm)

Typical layer thickness .0020" (50 µm)

Accuracy:

+/- .004” (100 µm) for the first inch and +/- .001” for each additional inch (+/- 1 µm/mm). Part geometry, thickness, and orientation can have an effect on tolerances.

Availability:

Lead time will be indicated in your instant quote, typically 1 day.

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Materials

Product Range:

Our standard prototyping resin is Tough-GRY 15, a tough ABS-like resin which can easily be painted or plated. Tough-GRY 15 offers high strength and stability for short run production of rigid gray parts. With 35% elongation at break, this durable material produces highly accurate components.
Other resin choices are possible for volume orders.