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Materials

Preview Plastic Sintering

Plastic Sintering

Art and design objects, display models, moving parts, tools
Preview Resin-bonded Plastic

Resin-bonded Plastic

Display models and prototypes without true functionality with a high resolution of details
Preview Extruded Plastic

Extruded Plastic

Mechanic functional parts and prototypes
Preview Resin-bonded Plaster

Resin-bonded Plaster

Decorative models, colored prototypes and display models
Preview Rubber Sintering

Rubber Sintering

Elastic prototypes, function testing, edge protectors for housings
Preview Alumide Sintering

Alumide Sintering

Mechanic functional parts, art and design objects, tools
Preview Resin Printing

Resin Printing

Transparent models, art and design objects, display models
Preview Silver Casting

Silver Casting

Jewelry, art and design objects, parts with electrical conductivity

Surface: slightly rough
Min. wall thickness: 0.8 mm
Resolution: 0.4 mm
Layer Thickness: 0.15 mm
Bounding-Box: 30 x 30 x 40 cm
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Method: Laser Sintering (SLS)
Material: Polyamide
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Plastic Sintering

Polyamide (PA) belongs to the group of thermoplastics, which also contains the famous nylon.

Material Properties:

In the 3D printing process it is used in combination with the laser-sintering technique as a fine powder. Since the laser is working very precise, small details can be created.

The resolution is 0.4 mm, limited by the laser spot size. Engraved or embossed letters should be at least 0.7 mm thick to be readable. Wall thickness should ideally not be smaller than 1.0 mm, if no force is applied 0.75 mm is possible. The terrace-effect typical for 3D printing that occurs while layered printing is only slightly visible because the layers are only 0.1 - 0.15 mm thick, so the surface looks quite smooth but with a matt slightly rough finish. Because the process involves heating the material up, for thin and long parts a certain amount of thermal warping can occur.

The material is slightly flexible and thin parts sustains a certain amount of bending.

A big advantage of laser sintering is that the powder works as a support-structure, thus complex and flexible structures can be printed without having to rely on external support materials. This provides the ability to print objects and structures that would not be possible or at least very difficult to realize with conventional manufacturing methods.

All models are printed using white powder and dyed after printing when needed. The color seeps a few tenths of a millimeter into the surface. Models ordered in white are not dyed.

The tolerances for laser sintered parts in polyamide are like defined by standard DIN ISO 2768-1 v (sg).

Applications:

Sintered polyamide can be used in many different ways. Since it is possible to print small details and high complexity, this material is used in art and to create design objects. The good stability makes it also well suitable for tools and movable working parts. The material is a real all-rounder.

Maximum number of parts allowed per file: 1.


Surface: grainy
Min. wall thickness: 1.5 mm
Resolution: 0.1 mm
Layer Thickness: 0.15 mm
Bounding-Box: 50 x 40 x 30 cm
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Method: Resin-bonded Powder
Material: Grained Acrylic
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Resin-bonded Plastic

Polymthylmethacrylate (PMMA), commonly known as acrylic or acrylic glass, is a glass-like plastic. Because it is used in form of a powder the 3D-prints are opaque.

Material Properties:

In 3D printing PMMA is used as a fine but grainy powder, which is glued in layers and builds objects from the bottom up.

This leads to the rough, grainy surface of the material, which has a lower abrasion resistance. For this reason PMMA tends to wear out more quickly at high frictional forces. Wall thickness should not be less than 1.5 mm, because after taking the model out of the machine it needs to be cleaned and infiltrated with a binder to give it the final stability. The high resolution of 0.1 mm allows very fine details, but keep in mind the minimum wall thickness when 3D-printing in this material.

After gluing and infiltrating the powder there is virtually no flexibility. Despite its rigidity the material is not too stable and rather brittle and should not be exposed to mechanical stress.

Typically printed objects are used for illustrative purposes and for the creation of prototypes with a high grade of details. The accuracy is high enough to even use the parts for metal casting as a lost model.

Applications:

The usage of PMMA plastic is a little limited by the lack of stability and abrasion resistance. Thus the creation of visual objects and non-functional prototypes is by far the most common use. For this purpose it is a good choice, since it is very accurate in details. The grainy, sand like surface also gives a great classical look to larger busts or statues.

Maximum number of parts allowed per file: 2.


Surface: ribbed
Min. wall thickness: 1 mm
Resolution: 0.4 mm
Layer Thickness: 0.25 mm
Bounding-Box: 20 x 20 x 15 cm
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Method: Extruded Plastics
Material: Thermoplastic ABS
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Extruded Plastic

Acrylonitrile butadiene styrene (ABS) is a common thermoplastic, with which many everyday items, including equipment housings, etc. are produced.

Material Properties:

ABS is processed predominant with fused deposition modeling (FDM). This means that the plastic material is heated and liquefied, so that it can be applied in layers from bottom to top. These layers melt together with a layer height of 0.25mm. They remain recognizable, leading to a visible terrace formation. The surface of the object can look slightly corrugated but the material itself is rather shiny. The ABS-material has the advantage of a high wear resistance.

The FDM-method allows to produce parts with a reduced volume filling to save material and weight and thus to save costs as well. We use a filling rate of roughly 20% by default.

To realize overhanging parts an additional supporting material must be used here. However, even with this support-structure, extruded plastic is not the best choice to print complex structures.

After cooling the material acquires stability and resilience. In order to ensure this, the walls should be at least 1 mm thick.

Applications:

Due to its high stability and abrasion resistance, ABS plastic is best for creating mechanical functional parts and product prototypes especially for bulkier parts where achieving a lower weight matters.

Maximum number of parts allowed per file: 10.


Surface: slightly grainy
Min. wall thickness: 2 mm
Resolution: 0.1 mm
Layer Thickness: 0.1 mm
Bounding-Box: 25 x 38 x 20 cm
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Method: Resin-bonded Powder
Material: Plaster
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Resin-bonded Plaster

This material has similar haptics to ordinary plaster or sandstone. It is called polymer-plaster, since there's a polymer component present, which makes the processing easier.

Material Properties:

Artificial plaster is used as a powder in 3D printing and is bonded with a special resin. The plaster forms a powder bed, in which the print head creates the object layer by layer with an adhesive.

After printing, the surface of the object is rather rough and the object has only very low stability. The model is therefore infiltrated with a binder to give it more stability. This is the reason, why the models need a relatively large wall thickness of 2 mm to make it possible to take the model out of the machine and cleaning it without breaking it before infiltrating. For model which have to sustain leverage force due to their own weight even thicker walls are necessary.

Models of resin-bonded plaster are not flexible and not very robust and should not be exposed to mechanical stress. They tend to wear out relatively quickly when being exposed to frictional forces.

The big advantage of printing with artificial plaster is the option to print in full color.

Applications:

The usage of resin-bonded-plaster is limited because of the lack of stability and abrasion resistance. But it is suitable very well for the creation of visual colored objects, non-functional prototypes, and decorative objects.

Maximum number of parts allowed per file: 2.


Surface: very grainy
Min. wall thickness: 1 mm
Resolution: 0.75 mm
Layer Thickness: 0.25 mm
Bounding-Box: 30 x 30 x 25 cm
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Method: Laser Sintering (SLS)
Material: Thermo-PU
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Rubber Sintering

Thermoplastic elastomers (TPE) are also known as thermoplastic rubbers. They can be formed under heat while behaving similar to rubber at room temperature.

Material Properties:

The material is applied at high temperatures (Laser Sintering Method) and is a little more temperature sensisitive than other materials even after production. Its flexibility is close to hard rubber but not quite the same. Shore hardness is 92A. The material is also comparatively lightweight.

The surface of this material is rather grainy and irregular.

Applications:

The rubberlike material is most commonly used because of its unmatched flexibility. From rubber ducks to technical parts many application are possible.The application is limited to usage as relatively hard rubber though.

Maximum number of parts allowed per file: 1.


Surface: slightly rough
Min. wall thickness: 1 mm
Resolution: 0.4 mm
Layer Thickness: 0.15 mm
Bounding-Box: 31 x 31 x 40 cm
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Method: Laser Sintering (SLS)
Material: Alumide
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Alumide Sintering

Polyamide powder mixed with aluminum powder.

Material Properties:

The word Alumide is derived from the components of aluminum and polyamide of which it consists. The printing process is laser-sintering.

The material properties are a product of the aluminum contained in the material. Compared to polyamide alumide is stiffer and more heat-resistant. The material's surface is a bit similar to matt metal. Combined with its higher weight alumide has a high value associated with it. In contrast to aluminum the surface can not be polished to a shiny finish.

Applications:

Alumide is best used for mechanical parts. Due to its material properties it can be seen as competition to ABS plastic. Often alumide is used as well because its metal like look for design parts.

Maximum number of parts allowed per file: 1.


Surface: smooth
Min. wall thickness: 1.25 mm
Resolution: 0.2 mm
Layer Thickness: 0.1 mm
Bounding-Box: 20 x 20 x 20 cm
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Method: Stereo Lithography
Material: Resin
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Resin Printing

Clear plastic, that allows for very high resolution models.

Material Properties:

The method used for producing is stereo lithography or DLP-printing from liquid resin which gets solidified under exposure to UV-light layed by layer.

The Material is clear but not polished. It stays very light-sensitive after production. Therefore the material should not be left in the sunlight for long since it will get brittle and assume a yellow color. The material properties in general discourage from building models from this material that will have some mechanical force exerted on them.

For this printing method support structure is necessary which needs to be removed by hand after printing. Small marks can still be visible on the model where the support structures where removed. The support structure can not be removed from cavities when they can not be reached easily.

Applications:

The very good resolution this material has is a result of the printing method used. It points towards using the material for displaying purposes. The models can be polished by hand to achieve a glass-like look. Detailed features for model building aswell as fantasy figurines from games are common applications. Or anything that needs to be transparent.

Maximum number of parts allowed per file: 1.


Surface: smooth
Min. wall thickness: 1 mm
Resolution: 0.15 mm
Layer Thickness: 0.15 mm
Bounding-Box: 8 x 8 x 10 cm
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Method: Lost Wax Casting
Material: Silver
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Silver Casting

Sterling Silver contains 92.5 percent silver and 7.5 percent copper.

Material Properties:

The method used for producing is high-resolution wax-printing followed by wax casting. The wax models gets destroyed during the process.

The same material is used by jewellers and can be worn close to the skin. It is comparatively soft and easily formed. After polishing the material is shiny. It will be polished mechanically to a glossy finish when ordered online.

Applications:

The material is best used for ornaments, art and jewellery. Especially personalized jewellery is in high demand. Bracelets and pendants with a special name or date embossed in them are examples of this.

Maximum number of parts allowed per file: 1.

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