Liquid Photopolymer

What Is Liquid Photopolymer?

Technology:
PolyJet Printing

Dimensional Accuracy:
Resolutions as fine as 20-85 microns (0.02mm to 0.085mm)

Build Volume Space:
Various

Liquid photopolymer in PolyJet 3D printing, developed by Stratasys, excels in high precision and detail, offering notable dimensional accuracy. This technology is ideal for diverse applications, including complex prototypes and detailed parts, due to its ability to print with multiple materials and achieve high-quality finishes. This makes PolyJet a top choice in industries needing detailed models like dental, medical, and consumer products.

The accuracy of PolyJet printing is influencedby several factors:

Layer Thickness: Smaller layer heights typically lead to higher precision and finer details. PolyJet technology can often achieve layer thicknesses ranging from about 14 to 32 microns (0.014mm to 0.032mm).
Printer Calibration and Quality: Precise calibration and high-quality components in the 3D printer contribute to achieving better accuracy. Regular maintenance and calibration are crucial for maintaining accuracy over time.
Material Properties: Different photopolymer materials might have varying shrinkage rates during the curing process, which can affect dimensional accuracy.
Printer Settings and Environmental Factors: Factors such as temperature, humidity, and printing speed can impact the final dimensional accuracy of the printed parts.

It's important to note that while PolyJet technology is known for its high accuracy, achieving the maximum level of precision may require adjustments to settings, materials, and proper calibration. Understanding the specific requirements of the application and working closely with the printer's capabilities can help in obtaining the desired level of dimensional accuracy for the 3D printed parts.

PolyJet Materials

PolyJet is a 3D printing technology is similar to inkjet printing but deposits layers of liquid photopolymer that are then cured with UV light. PolyJet materials offer a range of properties, allowing for the creation of prototypes and end-use parts with various characteristics. Here are some PolyJet materials commonly available:

Standard Resins:
• Vero: This is a family of materials that includes standard opaque colors like VeroWhite and VeroBlack.
Digital Materials:
• Stratasys offers the ability to blend multiple materials in a single print job, creating "digital materials" with specific properties. For example, combining Vero and Tango materials can produce both rigid and flexible features in the same print.
Rubber-like Materials:
‍• Tango: These materials are flexible and rubber-like, suitable for producing prototypes with elastomeric properties.The build volume can vary significantly among different models of PolyJet printers. Stratasys offers a range of printers with different sizes to suit various needs, from smaller desktop-sized printers to larger industrial-grade machines.
Transparent Materials:
• VeroClear: This material is transparent and suitable for applications where optical clarity is essential.
High-Temperature Materials:
‍• High-Temperature RGD525: This material is designed to withstand higher temperatures, making it suitable for testing parts in high-temperature environments.
Bio-compatible Materials:
‍• MED610: This is a biocompatible material suitable for medical and dental applications, such as creating dental models and surgical guides.
Simulated Polypropylene:
‍• Endur: This material simulates polypropylene and is known for its toughness and durability.
Digital ABS Materials:
• Digital ABS and Digital ABS2: These materials simulate the properties of ABS plastic, offering high impact resistance and toughness.
Specialty Materials:
• Stratasys continues to develop and release new materials for specific applications, so there may be additional specialty materials available based on your specific needs.

PolyJet technology provides several advantages:

High Resolution: Capable of producing fine details and smooth surfaces, making it suitable for applications requiring precision and intricate designs.
Multi-material Printing: Some PolyJet printers can simultaneously print multiple materials in a single build, allowing for a range of material properties within the same part.
Wide Range of Materials: Offers a variety of materials with different properties, colors, and opacities.
Support Removal: The support material can be easily dissolved or removed, leaving a clean final part.

Technical Specifications

Resolution: PolyJet technology is known for its high resolution, typically ranging from approximately 14 to 32 microns (0.014mm to 0.032mm). This allows for the creation of highly detailed and precise models.
Materials:PolyJet printers can work with various photopolymer materials, including different types of rigid, flexible, transparent, and biocompatible materials. Some printers are capable of multi-material printing, enabling the use of different materials within a single print job.
Build Volume: The build volume can vary significantly among different models of PolyJet printers. Stratasys offers a range of printers with different sizes to suit various needs, from smaller desktop-sized printers to larger industrial-grade machines.
Print Speed: Printing speed can vary based on the specific printer model and selectedsettings. PolyJet technology generally offers relatively fast print timescompared to some other high-resolution printing methods.
Color Capabilites: Many PolyJet printers support full-color 3D printing, allowing for thecreation of models with vibrant colors and various opacities.
Accuracy: PolyJet technology is highly precise, capable of achieving very finedetails. The resolution can range from 20 to 85 microns (0.02mm to 0.085mm),ensuring intricate and accurate prints.
Support Material: PolyJet printers use a support material that can be removed manually or through a post-processing step, often involving water or a cleaning solution.

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