Stereolithography (SLA) Resin 3D Printing Services
High-Resolution Parts and Prototypes with a Smooth Surface Finish
SLA produces highly detailed parts with the smoothest surface finish in additive manufacturing, making it ideal for visual prototypes, functional components, and precision applications.
Max Build Volume
335 × 200 × 300 mm
Layer Resolution
25 – 300 μm
Tolerance
±0.2–0.5%
Machinery
Formlabs Form 3BL
What is Stereolithography?
Stereolithography (SLA) is a resin-based 3D printing process that uses a laser to cure liquid resin into hardened plastic. Known for its high resolution, smooth surface finish, and tight tolerances, SLA is one of the most widely used technologies for creating accurate prototypes, detailed models, and functional parts.
SLA 3D printing is ideal for:
-
Parts requiring exceptional accuracy and features as small as 0.002 in (25 μm)
-
Smooth surface quality, suitable for visual and cosmetic prototypes
-
Form and fit testing of engineering components
-
Complex geometries that are difficult to achieve with traditional methods
-
Medical, dental, and industrial applications needing fine details and reliability
Technical Specifications
Build Volume
335 × 200 × 300 mm
(13.2 × 7.9 × 11.8 in)
Large-format SLA printing for industrial and medical applications.
Layer Thickness
25 – 300 μm
(0.025 – 0.30 mm)
High-resolution layers for smooth surface finish and fine details.
XY Resolution
25 Microns
(0.025 mm)
Exceptional accuracy for precise components and complex geometries.
SLA resins deliver exceptional resolution, fine details, and smooth surface finishes. With in-stock resins for fast turnaround and a full library of special-order materials, Tempus 3D can support both quick prototyping and large, specialized projects.
Choose from our in-stock SLA resins for fast production, or explore a wide library of specialty materials for larger or repeat projects.
Clear Resin V4.1
Transparent Material with a Smooth Surface Finish
Clear Resin V4.1 produces detailed, translucent parts that are ideal for visual prototypes, optical models, and functional testing. Its clarity makes it valuable for fluidics and light-based applications where internal features need to remain visible.
Top Specs:
-
Tensile Strength: 65 MPa
-
Flexural Strength: 2.8 GPa
-
Elongation at Break: 6%
-
Hardness: 83 Shore D
-
Appearance: Transparent, high optical clarity
BioMed Elastic 50A
Biocompatible Elastomer with Silicone-Like Flexibility
BioMed Elastic 50A is a soft, ISO 10993–certified resin that mimics the look and feel of silicone. With Shore 50A hardness and high elongation, it is ideal for flexible prototypes, wearables, and medical models requiring skin-safe performance.
Top Specs:
-
Tensile Strength: 3.2 MPa
-
Elongation at Break: 150%
-
Hardness: Shore 50A
-
Tear Strength: 19 kN/m
-
Biocompatibility: ISO 10993 certified
Looking for more SLA material options?
Design Guidelines
Minimum Wall Thickness
Recommended: 0.2 mm
A wall that is smaller than 0.2 mm may warp or detach from the model during printing.
Maximum Unsupported Overhang Length
Recommended: 5.0 mm
An overhang refers to a part of the model that sticks out horizontally parallel to the build platform. Printing such features without supports is discouraged, as the layers cannot maintain their structure.
Minimum Unsupported Overhang Angle
Recommended: 10° from level
The overhang angle refers to the angle from horizontal that the overhang sticks out.
Maximum Horizontal Support Span / Bridge
Recommended: 29 mm (5 mm wide × 3 mm thick)
A span is the distance between two intermediate supports of a structure.
Minimum Vertical-Wire Diameter
Recommended: 0.2 mm (7 mm tall) to 1.5 mm (30 mm tall)
A wire is a feature whose length is greater than two times its width.
Emboss / Engrave
Recommended: min 0.1 mm (emboss) / min. 0.15 mm (engraved)
Embossed Details smaller than 0.1 mm in thickness and in height may not be visible on your print, and engraved Details recessed less than 0.15 mm in thickness and in height may not be visible because they will be fused with the rest of the model during the print process.
Minimum Clearance Between Moving Parts
Recommended: 0.5 mm
Clearance is the amount of distance needed between two moving parts of a model (e.g., the distance between gears or joints).
Minimum Hole Diameter
Recommended: 0.5 mm
Holes with a diameter less than 0.5 mm in the x, y, and z axes may close off during printing.
Minimum Drain Hole Diameter
Recommended: 2.5 mm diameter
Drain holes are recommended for resin to escape in models that are a fully enclosed cavity (like a hollow sphere or hollow cylinder printed directly on the build platform).
