TPU Filament

Thermoplastic Polyurethane

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Also known as:Thermoplastic PolyurethaneTPE
Family:Flexible

Why Use TPU?

  • Perfect layer adhesion; extremely impact resistant; nearly indestructible
  • Great for combat robots, tactical/rough-use parts
  • Rubber-like parts (gaskets, grips, bumpers, wheels)

Things to Consider

  • Slow printing; retraction can cause jams (especially in Bowden setups)
  • Stringing is common
  • Very moisture sensitive; wet TPU prints poorly

TPU Variants

TPU 95A (common)

Benefits:

  • + Balanced flexibility and printability

Caveats:

  • - Still prefers direct drive and slow speeds

Soft TPU (85A-90A)

Benefits:

  • + More rubbery parts

Caveats:

  • - Harder to feed; needs excellent filament path constraints

Frequently Asked Questions

What is TPU filament?
TPU (Thermoplastic Polyurethane) is a 3D printing filament. Perfect layer adhesion; extremely impact resistant; nearly indestructible
What temperature should I print TPU at?
TPU typically prints at nozzle temperatures of 200-240°C and bed temperatures of 30-60°C. Moderate cooling
Do I need an enclosure to print TPU?
No enclosure is needed for printing TPU.
What is TPU filament best for?
TPU is best for: Perfect layer adhesion; extremely impact resistant; nearly indestructible; Great for combat robots, tactical/rough-use parts; Rubber-like parts (gaskets, grips, bumpers, wheels).
What are the downsides of TPU filament?
The main considerations when using TPU: Slow printing; retraction can cause jams (especially in Bowden setups); Stringing is common; Very moisture sensitive; wet TPU prints poorly.