Information, tricks, know-how, and advice to help you print your 3D model in our PEBA (flexible plastic) material.
PEBA Material Guide
What is PEBA?
Our PEBA 2301 (Polyether block Amide) is a high-performance thermoplastic elastomer created from fine powder material. The material is flexible and rubbery as well as resistant. PEBA 2301 is great for functional flexible plastic parts for both prototypes and finished products. The surface of PEBA 2301 is similar to rubber and can resist stress and fatigue.
3D printing with PEBA 2301 is great for both experienced professionals and beginning designers because of its high precision and low cost. Unpolished, the material is white, granular, and somewhat porous.
This plastic material has great technical properties for all your additive manufacturing projects. While this material is flexible, it also has good impact resistance, energy return, and fatigue resistance. For more information about the mechanical properties of our PEBA, related to its tensile modulus, tensile strength, check out the technical segment of this material page.
What can you do with PEBA's flexibility?
PEBA 2301 is a great 3D printing material for fully functional flexible plastic parts with high quality. It is durable, and the rubber-like fatigue behavior qualifies PEBA 2301 as an excellent prototyping and series material. As a result, the object can be used for hand braces, insoles, grippers, handles or seals.
The PEBA 2301 material has high elasticity and strength. Thus, it can be used in fields like automotive, footwear material, sports equipment, fashion, or medical… Its good chemical resistance and the excellent long-term stability make PEBA 2301 a good technical material with plenty of benefits for your projects, this material is well-known for its low density and its damping properties.
PEBA 2301 can resist heating below 60°C without any shape alterations. Regarding water qualities, PEBA 2301 is water-resistant but not waterproof. Thus the 3D object must not remain in contact with water for extended periods of time. PEBA 2301 is also resistant to some chemicals.
To make the most of this flexible plastic material, be sure to respect all design guidelines, check minimum thickness or the minimum sizes, to avoid all problems during the 3D printing process.
The printing price of your design is calculated automatically the moment it is uploaded. As you modify your object (changing material, finishing, size, using batch control or hollowing feature, etc.) you will note that the price changes automatically. The pricing is based on a series of factors, including total volume, object size, and bounding box – to name a few.
Keep in mind that adding finishing will extend the processing time. The estimated shipping time is also calculated automatically as the object is uploaded and each time you make a modification on it. Delivery time should be added to processing time.
For more information, check our pricing page.
PEBA's 3D printing process
The Selective Laser Sintering technology uses a highly specific laser that sinters thin layers of powder together one layer at a time. After each round of lasering, the printing bed is lowered and another layer of powder is evenly swept across the top for another round of sintering. This process is repeated at a layer height of 100 – 150 µm until the object is completed. To 3D print PEBA 2301, we use a lower temperature process than with polyamide (130°C instead of 175°C).
After the printer cools, the block of sintered powder is removed from the 3D printer and the printed objects are removed by hand. A part of the powder that was not sintered is recycled back into the printer for a future print.
The object is then brushed, which removes a large portion of the powder, and sandblasted, which removes the fine powder that the brush may have missed.
What are the available finishing options for PEBA?
|Standard layer thickness||100 – 150µm|
|Accuracy||± 0.3% (minimum of ± 0.3 mm)|
|Maximum size||240 x 315 x 190 mm|
The maximum size of your models are limited by the physical size of our 3D printers – nothing can be printed larger than the printer bed.
There is no minimum size for PEBA 2301 prints, keeping in mind minimum thickness for walls and structural aspects, to ensure the object will not break is 1.5 mm.
|Minimum wall thickness||1.5mm|
|Minimum wall thickness (rigid)||2mm|
|Minimum wall thickness stemmed elements|
0.8mm with support
|Minimum wall thickness particular design aspects||1-2mm|
Add a support structure to maintain stability. For example, if you are modelling a bust of a person, you can attach thin aspects of the design like the ears in more places around the model’s head. Doing that will avoid cantilevered and easily breakable elements in the final print.
Thin walls supporting large, heavy PEBA models can warp under the weight of itself.
Sculpteo offers an online solidity check tool which highlights parts of the print that may be too thin for a print. From there you are able to tweak your design in order to create an object that is an appropriate thickness. To use it, you just need to upload your 3D file, select your material and click on “Verification” tab.
It is also important to keep in mind that the object is to be printed into real life. Thus if a thin aspect is supporting something that is too heavy for it, it may break – even though it is possible within the physics provided by your 3D modeling software. We recommend adding a bit of thickness to the places that will get a lot of handling, or that support the most weight.
Do not forget
Keep in mind that our solidity check tool does not detect physical aberrations such as floating parts, unstable position, parts supporting too much weight relative to their thickness, etc. Particular care must be given to the geometry of your design and the most stressed parts must be thickened.
|Minimum size of details||0.3 mm|
|Minimum height and width details||Embossed : 0.4 mm |
Engraved : 0.5 mm
|Minimum height and width for a readable text||0.5mm|
A detail’s minimum precision is mainly determined by the resolution of our 3D printers. However, during the cleaning process, a fine layer of detail can also be lost. In order for detail and text to be visible, we recommend following our recommended sizes at the very least.
It’s possible that particularly fine embossings and engravings will not be visible, as the carving could get filled with excess powder that is later unable to be cleaned out. If an embossing or engraving is an essential part of your design we recommend making them as deep as possible. To ensure a better powder removal (thus better detail visibility), the width of your details must be at least as big as depth.
|Enclosed parts ?||Yes|
|Interlocking parts ?||Yes|
Our PEBA 2301 material has the ability to print the most complex designs of our materials. An example of complex design is a volume enclosed within another volume, like a chain or maraca. Our printers have the ability to print a fully interlocked chain out of the printer, with no support structures to remove.
|Minimum space||0.5 mm|
Objects 3D printed in PEBA 2301 can be printed to be assembled as long as a width of at least 0.5 mm is left between the different parts of the object, even if this material is not recommended for this use due to the elasticity of the material.
Our online hollowing optimization tool has the ability to greatly reduce the price of a print by reducing the amount of material used.
Using the tool requires adding two holes to your model, which will serve as the drain for the excess powder material within the object. The minimum size of these holes is determined by our website. Otherwise it is possible to hollow your object manually in your 3D modeling software.
|Files with Multiple Objects ?||No|
It is not possible to 3D print a 3D file containing several objects with our 3D plastic printers.
|Density of laser-sintered part||EOS-Method||g/cm3||0.950|
|Tensile Modulus in X and Y Directions||DIN EN ISO 527||MPa||75|
|Tensile Modulus in Z Direction||DIN EN ISO 527||MPa||80|
|DIN EN ISO 527||MPa||8|
|DIN EN ISO 527||MPa||7|
|Elongation at break||DIN EN ISO 527||%||200 ± 70|
|Melting point||DIN 53736||°C||150|
Ready to 3D print with PEBA?
With Sculpteo’s online 3D printing service you’re just a few clicks away from professional PEBA 3D printing. Your 3D model is printed with the highest quality and delivered straight to your door.
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