SLA 3D-Printing (Stereolithography)

SLA printing: Precision in perfection

Where conventional 3D printers reach their limits, stereolithography is just beginning. Create models with microscopic precision and flawless surfaces.

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SLA precision manufacturing: Isometric detail meets high-performance resins.

Our SLA (stereolithography) process offers unparalleled surface quality and dimensional accuracy. Through laser- or light-controlled curing of liquid resin, we achieve geometries that would be impossible with conventional methods – absolutely smooth, highly precise, and immediately ready for technical applications.

Materials expertise

We use a proprietary resin formula that combines extreme detail with exceptional elasticity and impact resistance. Our prints are not brittle, but mechanically durable.

Isometric precision

Thanks to micro-thick layers, we achieve an accuracy that reliably reproduces even the most complex connectors and threads. Ideal for precision mechanical prototypes.

Museum surfaces

SLA delivers nearly isotropic components with injection-molded quality. The pore-free, smooth surfaces minimize post-processing and guarantee a first-class feel.

Dimensional freedom

Whether delicate figures in small sizes or scaled up through precise multi-part printing, where the individual parts are seamlessly assembled.
Our SLA technology enables design freedom without the limitations of traditional manufacturing processes.

SLA 3D-Printing (Stereolithography)

From liquid resin to high-strength component

SLA printers use liquid, light-sensitive resin that is photopolymerized at specific points by a laser beam, thus becoming solid. This allows for higher precision and detail accuracy, as the laser beam is very thin and can create finer layers.

However, this results in "greater" post-processing work.

SLA printing

We use our own blend of resins. This ensures elasticity combined with enormous impact resistance.

Application: Highly detailed figures and statues, small cases, rings, jewelry

Unlike conventional FDM printing, our SLA process produces a smooth surface that almost achieves injection molding quality . With a minimum layer thickness of 0.025 to 0.05 mm, even the finest details on faces, armor, or jewelry become visible, details that would otherwise be lost.

Many resin-printed figures are brittle and fragile.
However, we use our own blend of resins that specifically combines elasticity with enormous impact resistance . The result is models that are not only highly detailed, but also robust and durable.

DANGER:
Small pieces can still break off if you drop a statue! They are not indestructible.

We use our own blend of resins. This ensures elasticity combined with enormous impact resistance.
For custom orders, we will find and combine the best solution for you.

Standard Resin: The ideal choice for delicate models and design studies where every tiny detail counts.

ABS-like: Combines extreme precision with increased robustness and elongation.

Tough: Offers similar precision to ABS-like, but is very flexible – perfect for parts that require some flexibility.

We can produce one-piece models up to a size of 20 x 10 x 22 cm . Larger statues are created using precise multi-part printing, where the individual parts are seamlessly assembled.

To achieve museum-quality and stability, each piece undergoes a multi-stage process: It is cleaned in special solutions ( washing ) and then finally cured under controlled UV light ( hardening ). Only in this way can we guarantee a secure feel and long-lasting aesthetics.

UV Light & Post-Curing: Our special resin mixture is extremely impact-resistant. However, unpainted resin parts can become brittle and harden over time if exposed to prolonged, direct sunlight. We recommend a UV-protective varnish for display pieces in windows or gardens.

Cleaning: Clean your statues only with a dry, soft brush. Harsh cleaning agents can damage the delicate surface.

Paintability: All SLA parts can be painted perfectly with acrylic paints after a light priming.

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The SLA workflow

From fluidity to precision

The SLA process is chemically oriented and requires precision in post-processing to achieve the desired material properties.

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Data preparation

(Pre-Processing)

Slicing: The 3D model (STL/OBJ) is sliced into extremely thin layers using software.

Support structures: Since the model “hangs” in the resin bath or grows on the platform, delicate supports are added to stabilize the model.

Orientation: The model is often placed at an angle (approx. 30–45°) to minimize the pulling forces from the FEP film.

Post-processing
from SLA prints

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Once the model is printed, the support structures, which are used for parts that hang in the air and need supports for printing, are removed.

The support structures are carefully removed with side cutters. Since the resin is not yet fully cured ("green state"), this is particularly easy at this stage.

Washing and cleaning

After the supporting structures are removed, the model is thoroughly cleaned of resin residue.

The finished component is coated with a sticky film of uncured resin.

Process: The part is immersed in isopropanol (IPA) or a special cleaner for 5–15 minutes (often in a rotating wash station) to remove all residues.

UV curing of the resin

Post-curing

Essential step: The component is placed in a UV chamber. Only through targeted irradiation with UV light (often with heat) do the polymer chains achieve their final stability and hardness.