Photo polymer resins like clear resin, standard resin, to name a few, are used to make prototypes in SLA.
These resins, or ‘build materials’ as they are called are in a liquid state.
A part’s entire cross section is traversed by the laser as it builds up each layer.SLA is better suited to printing parts with small and well defined features.
When printed using SLA, parts generally yield higher dimensional tolerances a better surface finish.SLA presents a challenge when printing larger parts, as they need support during the printing process.
The technique uses polyamide and polystyrene powders as building materials.
Layers of the materials are carefully on the build tray using a leveler or roller.