Technology
Masked Stereolithography (MSLA) is an advanced form of resin-based 3D printing that utilizes a high-resolution LCD screen to cure liquid photopolymer resin layer by layer. This method is particularly powerful for large-format printing, allowing for high-precision, high-detail parts on a much larger scale compared to traditional SLA or DLP printers.
- The process starts with a 3D model created in CAD software.
- The model is then sliced into thin layers using specialized software.
- The printer translates these slices into mask images, which are displayed on an LCD panel.
- The build plate is submerged into a vat filled with liquid photopolymer resin.
- A transparent film (FEP or PFA) at the bottom of the resin vat allows light to pass through while preventing adhesion.
- A UV light source located beneath the LCD panel projects light upwards.
- The LCD masks specific areas, exposing only the required shape of the current layer.
- The exposed resin cures instantly due to UV light polymerization.
- After each layer is cured, the build plate lifts, allowing fresh resin to flow beneath.
- The process repeats until the entire part is built from the bottom up.
- Once printing is complete, the part is carefully removed from the build plate.
- Excess resin is washed off using isopropyl alcohol (IPA) or other solvents.
- The part is then UV-cured further to achieve its final mechanical properties.
- Supports are removed, and additional sanding, painting, or coating can be applied if necessary.
Massive Build Volume
Print larger single parts or batch-produce multiple items at once.
Unparalleled Resolution
Unlike FDM, MSLA achieves ultra-fine details without visible layer lines.
Fast & Scalable Production
Entire layers cure at once, making MSLA significantly faster than laser-based SLA.
Stronger, High-Quality Materials
Supports a wide range of resins, including engineering, biocompatible, flexible, and high-temp resins.
Cost-Effective for Large Parts
Uses less material waste than CNC machining or injection molding for custom one-offs or small-batch production.
