Stereolithography – more commonly referred to as SLA 3D printing – is one of the most popular and widespread techniques in the world of additive manufacturing. It works by using a high-powered laser to harden liquid resin that is contained in a reservoir to create the desired 3D shape. In a nutshell, this process converts photosensitive liquid into 3D solid plastics in a layer-by-layer fashion using a low-power laser and photopolymerization.
Our SLA manufacturing standards
We manufacture your parts according to strict manufacturing standards.
- A dimensional accuracy of ± 0.5% with a lower limit of ± 0.15 mm (± 0.006″)
- Parts are fully cured to material manufacturer specifications before shipping.
- Hollow sections must be drained of excess resin.
- All support material is removed and support nibs must are sanded smooth.
Materials we work with
Below is a list of our standard materials for SLA 3D printing.
It’s perfect for applications like creating conceptual models, functional models, prototypes, miniatures, and visual arts.
Standard resins come in a range of colors and, like all other resins, can be pretty stinky, so be sure to use them in well-ventilated areas.
Our Transparent Plastic, also known as SLA Clear Resin. We can capture optically clear parts with smooth surface finishing with almost nonvisible 3D Print layer lines. This material is probably one of the most transparent 3D Printed materials around. This rigid material is recommended for design verification, bottle prototypes, research and other see-through parts that do not require demanding mechanical or thermal properties.
Marketed under many different names, ABS-like “tough resins” boast a high level of impact resistance. Acrylonitrile butadiene styrene (ABS) is a plastic commonly used in toy manufacturing, personal protective equipment such as hard hats and helmets, and other uses where the object will be put through stress. Tough resin is ideal for conceptual models, functional parts, and prototypes.
Sometimes, you need to be a little flexible. FDM printers use thermoplastic polyurethane (TPU), a rubber-like material found on drop-proof mobile phone cases.
But if you’re in the market for a TPU-like resin, it often goes under the line name “Flex” and can be similarly used for items where high elasticity and vibration absorption are needed, such as racecar wheels.
A major advantage of 3D printing is its ease and speed in prototyping, and castable resin and the lost wax method is a prime example of that. A wax model is encased in a plaster-like medium that hardens and is then heated, so the wax model melts away, leaving a mold that’s then filled with liquid precious metal.
This way, jewelers can print a model, use it to form a cement mold and burn away the resin in a furnace, allowing the liquid metal to be poured into its place. A single 3D printed ring or brooch in this castable resin can form the mold for dozens in gold, silver, or other metals.