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Stereolithography (SLA or STL) – a frequently used 3D printing process in rapid prototyping and additive manufacturing. The applications for stereolithography vary widely and range from the creation of design studies and functional prototypes to presentation models.
Especially in prototyping, stereolithography is ideal for product development. Why? SLA 3D printing is ideal for detailed models or small series as it delivers high precision, flexibility of component size, very good surface properties, a wide variety of available materials and fast delivery times.
Very precise models are created by photopolymerization from liquids because very little and finely focused laser radiation is used and the process-related shrinkage is very low. Different surface options are available as the materials are excellent for further processing after printing. Stereolithography allows you to produce transparent and translucent plastic parts.
| Material | Accura® Xtreme | Accura® 25 | Somos® WaterClear Ultra | Somos® Taurus | Somos® ProtoTherm |
|---|---|---|---|---|---|
| Description | Standard material, durable, impact resistant. Highly suitable for dimensional, fit and function models | Sturdy and very flexible. For components that need to look like white polypropylene. A good choice for models intended for market research or trade fair presentations | Transparent, highly transparent or frosted glass effect. Lets you see inside the model. Suitable for showpieces, teaching materials, fiber optics, bottles or lenses | Good strength at temperatures up to 85 ° Celsius. Very high load-bearing capacity, suitable for near-series parts. Detailed graphics via fine laser. |
Thermally stable up to 125° Celsius. Ideal for small electronic plugs or parts used to analyze the flow behavior of liquids in the high-temperature range. |
| Hardness [Shore D] | 86 | 80 | 86-87 | 83 | 85/87* |
| Density [g/cm³] | 1.19 | 1.19 | 1.13 | 1.13 | 1.15 |
| Modulus of elasticity [MPa] | 1790-1980 | 1590-1660 | 2310 | 3520/3250* | |
| Flexural modulus [MPa] | 1520-2070 | 1380-1660 | 2410-2570 | 2054 | 3320/3060* |
| Flexural strength [MPa] | 52-71 | 55-58 | 73.8 | 109/103* | |
| Tensile strength [MPa] | 38-44 | 38 | 55-56 | 46.9 | 70.2/77.0* |
| Notch impact strength [J/m] | 35-52 | 19-24 | 24-26 | 47.5 | 12/17* |
| Elongation at break [%] | 14-22 | 13-20 | 6-9 | 24 | 4.0/4.5* |
| Heat deflection temperature at 0.45 MPa [°C]. | 62 | 60 | 62/91* | 56.5/126.2* | |
| Heat deflection temperature at 1.81 MPa [°C]. | 54 |
50/73* | 51.9/110.7* | ||
| Water absorption [%] | 0.37/0.24* | ||||
| Standard layer thickness [mm] | 0.10 NR or 0.05 HR mode | 0.10 NR or 0.05 HR mode | 0.10 NR or 0.05 HR mode | 0.10 NR or 0.05 HR mode | 0.10 NR or 0.05 HR mode |
| Appearance/color | gray (RAL-7045) | yellowish-white | absolutely transparent and largely UV resistant | similar to RAL 7016 | red/orange translucent |
*Data that differ between untreated and heat treated are shown as untreated/heat treated.
At 1zu1, we help you find the perfect solution by combining the best technology with a wide range of materials. And this is implemented in the shortest possible time and with the highest technical precision.
Challenge us. What can I do for your project?
1zu1sales
area manager CH / LI / Vlbg
T +43 5572 33 333-839
sebastian.fink@1zu1.eu
“When it comes to perfect prototyping, it’s safe to say that we are the right address.”
Sebastian Fink is a trained instrument maker and plays the bass clarinet – his personal anti-stress program.
1zu1sales
area manager Germany
T +43 5572 33 333-842
stefan.raedler@1zu1.eu
» For perfectly implemented ideas, I propose new technological paths with my customers.«
In motocross and enduro, Stefan Rädler is on difficult paths.
1zu1sales
area manager Austria
T +43 5572 33 333-838
klaus.pichler@1zu1.eu
»As a cyclist, I know that excellent technology is the key to speed – and therefore to success..«
Klaus Pichler spends his free time in the saddle – he and his road bike conquer Austria’s mountains with endurance and the right pedal stroke.
1zu1sales
area manager CH / LI / Vlbg
T +43 5572 33 333-839
sebastian.fink@1zu1.eu
“When it comes to perfect prototyping, it’s safe to say that we are the right address.”
Sebastian Fink is a trained instrument maker and plays the bass clarinet – his personal anti-stress program.
1zu1 offers different quality levels of master models.
Why? To keep your development costs as low as possible. The following three factors are important:
The starting point for further processing is first of all to clarify the required type of post-processing. This depends on the rapid prototyping process used, the subsequent duplication process, the intended use and the material of the prototype or whether SLA components are used directly as series parts.
Work steps
| First Class | Business Class | Economy Class | |
| Cleaning | |||
| Remove support geometries | |||
| Remove gradation (Grain: 120–180) | |||
| Correct outbreaks | |||
| Grinding on the visible side (Grain: 220–320) | |||
| Fitting to the assembly | |||
| Blasting with corundum (except transparent parts) | |||
| Vacuum casting possible |
Here at 1zu1 we can treat master models, duplicated parts and serial parts with special surface techniques according to customer requirements . We finish the prototypes and serial parts via EDM texturing, high gloss, special effects (metallic, silver, partial) or subsequent varnishing.
We can also accommodate individual color samples or color requests (RAL, NCS, Pantone). For this purpose, we offer a wide range of surface treatment processes in manual finishing, depending on the initial technology. Each process can be applied individually, in combination, partially or fully, according to RAL or NCS.
The possibility of individual printing, laser marking as well as hot foil stamping is also available at 1zu1 in-house. Put us to the test!
| STL systems | Type designation | Construction layer thickness | System construction space | Materials |
|---|---|---|---|---|
| 3D systems | Projet 6000 | 50 µm & 100 µm | 250 x 250 x 250 mm | Accura® Xtreme, Accura® 25, Somos® WaterClear Ultra, Somos® Taurus, Somos® ProtoTherm |
| 3D systems | Viper Si2 | 50 µm & 100 µm | 250 x 250 x 250 mm | Accura® Xtreme, Accura® 25, Somos® WaterClear Ultra, Somos® Taurus, Somos® ProtoTherm |
| 3D systems | SLA 3500 | 100 µm | 350 x 350 x 400 mm | Accura® Xtreme, Somos® WaterClear Ultra, Somos® Taurus |
| 3D systems | Viper iPRO | 100 µm | 750 x 650 x 550 mm | Accura® Xtreme, Somos® WaterClear Ultra |
| 3D systems | ProX 800 | 100 µm | 650 x 750 x 550 mm | Accura® Xtreme, Somos® WaterClear Ultra |
