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STEREOLITHOGRAPHY (SLA)

How does SLA 3D Printing work?

Stereolithography (SLA) is a 3D printing process that utilizes a liquid resin as the printing material. The model is sliced into thin layers. In SLA, a vat of liquid resin is used, and a build platform is submerged into the resin. A laser or a light source then selectively cures the resin, solidifying it layer by layer based on the sliced design. As each layer is cured, the build platform gradually lifts out of the vat, and the excess liquid resin is drained away. Finally, the object is fully cured and removed from the build platform.

SLA offers high precision and smooth surface finish, making it ideal for producing intricate and detailed parts, jewelry, dental models, and other highly accurate prototypes.

Stereolithography Capabilities

	Maximum Part Size	Tolerances	Layer Height	Minimum Feature Size	Standard Lead Time
Form Labs Form 3B+	145 x 145 x 145mm (5.7 x 5.7 x 6.8in)	± 0.5% with a lower limit: ± 0.2 mm (0.007 in)	25-100μm	0.2mm	From 2 business days

SLA 3D Printing Material Selection

Standard Resins

Standard Resins offer a high detail way to prototype your parts. There are 4 different colors to chose from: grey, white, black and clear.

Speciality Resins

Need a special property in your parts? Print my Parts offers numerous different specialty resins such as, Elastic Resin, Tough Resin, and Castable Wax Resin.

Pros and Cons of Choosing SLA

Pros

Cons

SLA Quality Standards

Standard Processing includes, removal, sanding of support marks, finally parts are washed and cured to resin manufacturer’s standard procedures.

Type of Feature	Recommended Minimum
Minimum Feature size	0.2mm (0.000787in)
Minimum Hole Diameter	0.5mm (0.0197in)
Minimum Wall Size	1.0mm (0.0393in)
Drain Hole Diameter	4mm (0.157 in)

Designing for SLA

Designing specifically for SLA printing