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Testing Six Flexible 3D Printing Filaments: A Comprehensive Comparison

In this blog post, we delve into the world of flexible 3D printing filaments by testing six distinct types to determine their performance and usability on different 3D printers. From elasticity to print quality, we scrutinize each filament to provide you with valuable insights for your next printing project.

Overview of Flexible Filaments

Flexible filaments are essential for creating 3D prints that require flexibility and resilience. They enable prints that can bend, flex, and stretch, catering to a diverse range of applications. However, not all flexible filaments are created equal, and in this comparison, we explore the characteristics of six different types.

PolyFlex by Polymaker

  • Description: PolyFlex is a flexible filament known for its ease of printing and flexibility.
  • Printing Experience: It prints well at 220°C, offering flexibility without being overly elastic.
  • Recommendation: Ideal for applications where some flex is needed without being too squishy.

Generic TPU Filament

  • Description: A versatile and elastic thermoplastic polyurethane filament.
  • Printing Experience: Printing at 230°C, it demonstrated exceptional stretchiness and elasticity.
  • Caution: Requires slow printing speeds to avoid issues on standard printers.

Fiberology FiberFlex 40D

  • Description: A flexible filament known for ease of printing on various machines.
  • Printing Experience: Offers a good balance of flexibility and elasticity, suitable for semi-flex applications.
  • Verdict: Prints beautifully with minimal stringing, making it a reliable choice.

Ascentium TPU

  • Description: A soft and elastic TPU filament.
  • Printing Experience: Soft and elastic, suitable for applications requiring some stretch.
  • Note: Early batches may require specialized extruder hardware for optimal performance.

Makers Shaper 85A TPU

  • Description: A highly flexible and soft filament.
  • Printing Experience: Demonstrates extreme flexibility, suitable for applications requiring a high degree of flexibility.
  • Printing Tip: Be cautious with removal from print beds due to strong adhesion.

Diastron Engineering X60 TPU

  • Description: An ultra-flexible filament with 68 Shore hardness.
  • Printing Challenge: Requires meticulous tuning and support for optimal print quality.
  • Usage: Ideal for applications demanding extreme flexibility.

Conclusion and Awards

  • Easiest to Print: Fiberology FiberFlex 40D, offering exceptional print quality and ease of use.
  • Most Flexible: Diastron Engineering X60 TPU, providing unparalleled flexibility.
  • Cost-Effective Choice: Generic TPU, a versatile filament available in a variety of colors.

We hope this comprehensive comparison of flexible 3D printing filaments has been informative and insightful. Choosing the right filament for your project can significantly impact the final outcome, so consider the specific characteristics and requirements before making your selection.

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