The primary difference between DLP and SLA is the light source; SLA uses a UV laser beam while the DLP uses UV light from a projector. In DLP, the UV light source remains stationary and it cures the complete layer of resin at a time. In SLA, the laser beam moves from point to point tracing the geometry.
What kind of resin is used for 3D printing?
The kind of resin used in 3D printing is called photopolymer resin, which is a liquid that turns into plastic through a chemical reaction with UV light. Some people confuse epoxy resin with 3D printing resin, but that is a fundamentally different type of material. Gray photopolymer resin is the most popular color.
Is DLP and SLA the same?
Light Source: SLA uses a UV laser beam while the DLP uses UV light from a projector. Light Movement: In DLP, the UV light source remains stationary and it cures the complete layer of resin at a time. In SLA, the laser beam moves from point to point tracing the geometry.
Can you Overcure UV resin?
So, in short yes: Resin parts can be over cured if exposed to UV light for too long. The light coming from a UV curing chamber is much stronger than the effect that sunlight has on the resin prints, and leaving them overnight will already show some signs of degradation.
How do you know when resin print is cured?
Generally, when the surface starts to look silky or matte is when your model is perfectly cured. If your model looks glossy or wet, it isn’t fully cured. And if you over cure it, the model will start to look patchy and brittle.
Is resin a SLA?
Stereolithography (SLA) 3D printing is the most common resin 3D printing process that has become vastly popular for its ability to produce high-accuracy, isotropic, and watertight prototypes and end-use parts in a range of advanced materials with fine features and smooth surface finish.
What type of printer is a resin printer?
Similar to Filament printers, resin printers build parts in layers, but do so by exposing each slice to a pattern of UV light to solidify the resin in the desired locations. You’ll see two types of common resin printers, DLP (digital light processing) and SLA (Stereolithography).
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