GDP: Everything You Need to Know


Explore the world of Gel Dispensing Printing (GDP) in 3D printing: advantages, comparisons with FFF, FDM, FGF, LAM, CEM, and its impact on various industries.

by Editorial Staff: We are a team of 3D Printing Enthusiasts who have build a lot of knowledge about 3D Printing the last 8 years. Our aim is to create the knowledge hub for 3D Printing covering all minor and major topics. Providing one source of reliable Information for everybody regardless of Beginner or Expert.

Introduction to GDP and MEX Technologies

What is GDP (Gel Dispensing Printing)?

GDP, or Gel Dispensing Printing, is a cutting-edge 3D printing technology that has revolutionized the field of additive manufacturing. Unlike traditional 3D printing methods, GDP works by dispensing a gel-like material that is instantly cured and solidified using UV light. This technology enables the production of large-scale parts with high precision and speed, making it ideal for a wide range of industrial applications.

Understanding MEX (Material Extrusion)

MEX, or Material Extrusion, is the parent technology of GDP. It’s a process where material is extruded through a nozzle or orifice to create objects layer by layer. MEX is known for its versatility in materials and its ease of use, making it popular in both industrial and consumer 3D printing.

Comparing GDP with Other 3D Printing Technologies

GDP vs. FFF (Fused Filament Fabrication)

  • FFF: Uses a continuous filament of thermoplastic material.
  • GDP: Dispenses a gel-like substance, enabling faster and larger scale printing.

GDP vs. FDM (Fused Deposition Modeling)

  • FDM: Similar to FFF, it’s limited in scale and speed.
  • GDP: Offers greater speed and scale, suitable for industrial applications.

GDP vs. FGF (Fused Granulate Fabrication)

  • FGF: Utilizes granulated material, allowing for more material options.
  • GDP: Provides faster printing and curing process with its gel technology.

GDP vs. LAM (Liquid Additive Manufacturing)

  • LAM: Uses liquid resin, offering high detail and precision.
  • GDP: Focuses on large-scale production with quicker fabrication times.

GDP vs. CEM (Composite Extrusion Modeling)

  • CEM: Specializes in creating composite materials.
  • GDP: Offers the advantage of printing large parts rapidly.

Pros and Cons of GDP Technology


  • Speed: GDP is significantly faster than most other 3D printing technologies.
  • Scale: Capable of producing large-scale objects efficiently.
  • Precision: Offers high precision in the fabrication of complex parts.
  • Material Diversity: Compatible with various materials, including gel-based polymers.


  • Cost: GDP machines and materials can be more expensive.
  • Material Limitations: Gel materials used in GDP might not suit all applications.
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  1. What makes GDP different from FDM and FFF?
    • GDP uses a gel-like material cured with UV light, allowing for faster, larger-scale printing compared to the filament-based FDM and FFF.
  2. Can GDP be used for small-scale precision parts?
    • While GDP excels at large-scale production, it also offers high precision suitable for smaller parts.
  3. Is GDP more expensive than other 3D printing technologies?
    • Yes, due to its advanced capabilities and materials, GDP can be more costly.
  4. What industries benefit most from GDP technology?
    • Industries like automotive, aerospace, and construction, where large-scale parts are needed, benefit greatly from GDP.
  5. Can GDP use different types of materials?
    • GDP primarily uses gel-based materials, offering a range of properties for diverse applications.


GDP is a transformative technology in the field of 3D printing, offering unparalleled speed and scale. Its ability to create large and complex parts efficiently makes it a valuable tool in various industries. While there are cost considerations, the benefits of GDP make it a noteworthy contender in the evolving landscape of additive manufacturing.

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