Stereolithography Apparatus also known as SLA (Stereolithography Apparatus ), is a 3D printing process that converts UV-sensitive photopolymer liquid resin into solid parts, layer by layer, by selectively binding the liquid together using a UV laser beam in a process known as photopolymerization.

The build platform is positioned just above the tank of liquid resin with one layer of the liquid resin on the platform. The UV laser then selective cures or binds the liquid together in a predetermined path. Once the layer is complete the build platform lowers itself into the liquid tank another layer. This process continues till the part is complete.

The liquid resin is composed of chemicals that are activated by the light of a UV laser and bind together to become solid. This process is irreversible and there is no way to convert SLA parts back into liquid form: when heated, they will burn instead of melting. This is because the materials that are produced with SLA are made of thermoset polymers, as opposed to the thermoplastics that FDM uses.

SLA technology is capable of making highly accurate and precise parts with speed while also creating the smoothest surface finish parts of all 3D printing processes. SLA parts are generally brittle and degrade overtime if exposed to sunlight making them unsuitable for functional prototypes.

Standard Lead time: Minimum 4-5 working days depending on part size, number of components, and finishing requirements lead time may increase.

Standard Accuracy: ± 0.025mm – 0.05mm

Layer thickness (resolution): 0.016 mm

Minimum Wall thickness: 1mm

Max dimensions: 330mm x 185mm x 400 mm. Large parts can be created by assembling individual parts by interlocking designs or gluing them together.

Surface finishing and Post Processing: Unfinished parts typically have visible building layers on the surface but post-production finishes can achieve different effects, from high glosses to coarse textures. SLA parts can be sandblasted, smoothed, colored/impregnated, painted, varnished, covered, and coated

• Clear resin
• ABS-like White Resin
• Grey Resin
• Flexible Resin
• Castable wax Resin