Looking for a level of detail that you simply can't achieve on a regular 3D printer? SLA printing, also known as resin printing, is the answer. In this guide, we'll look at how this technology is different and who it's for.
The Magic of Liquid Resin
Unlike FDM printing, SLA doesn't use a plastic string. Instead, it has a vat full of liquid photopolymer (resin). A UV light source (laser or LCD) precisely cures the resin layer by layer. Since the layers are often only 0.05 mm or less thick, the resulting surface is perfectly smooth and the details are razor-sharp.
Who is SLA Printing For?
SLA is ideal for projects where details are more important than mechanical strength. Common uses include:
- Modelers and Tabletop Gamers: Miniature figures with fine facial details and equipment.
- Jewelers: Preparing models for casting precious metals.
- Dentists: Precise dental models and splints.
What to Watch Out For?
Working with resin requires more patience and safety. Resin is irritating in its liquid state, so gloves are a must. After printing, the model needs to be washed in isopropyl alcohol and allowed to "cure" under a UV lamp. It requires more work, but the result is definitely worth it.