NinjaTek

Premium flexible TPU specialist; industry benchmark for soft filaments

Tier A-

NinjaTek sits at Tier A- - a strong overall pick with tight quality control and a few minor caveats versus pure Tier A brands. We rate them this way because of prusa forum and printing community treat ninjaflex as the reference hard-to-print flexible filament requiring direct drive and slow speeds and category leader for 85a-95a tpu but intentionally niche versus everyday pla/petg reliability brands. Materials available from NinjaTek include NinjaFlex, SemiFlex, Cheetah, Armadillo, Chinchilla, and Eel. In day-to-day printing, NinjaTek stands out for: ninjaflex widely used for wearables, gaskets, and phone cases when dialed in. Spools typically run $35-$55 per kilogram.

Why Tier A-?

  • Prusa forum and printing community treat NinjaFlex as the reference hard-to-print flexible filament requiring direct drive and slow speeds
  • Category leader for 85A-95A TPU but intentionally niche versus everyday PLA/PETG reliability brands

Pros

  • Pioneer flexible filament brand under Michelin-owned Fenner Precision Polymers
  • NinjaFlex widely used for wearables, gaskets, and phone cases when dialed in
  • New EDGE 83A line targets higher print speeds than classic NinjaFlex
  • Consistent shore-hardness ratings across the product line

Cons

  • Very soft NinjaFlex is painful on Bowden setups and needs 12-15mm/s speeds
  • Color-to-color behavior varies; even same machine may need different temps
  • Premium pricing versus generic 95A TPU

Additional Notes

  • Use direct drive, dry filament, bypass runout sensors, and expect slow speeds on softest grades

NinjaTek Filament FAQ

What materials does NinjaTek make?

NinjaTek produces filament in the following materials: NinjaFlex, SemiFlex, Cheetah, Armadillo, Chinchilla, Eel. Each material is suited to different print applications - check our material database for printing temperatures and specs.

What tier is NinjaTek filament rated?

NinjaTek is rated Tier A- by Filament Cheat Sheet because of prusa forum and printing community treat ninjaflex as the reference hard-to-print flexible filament requiring direct drive and slow speeds and category leader for 85a-95a tpu but intentionally niche versus everyday pla/petg reliability brands.

Is NinjaTek good for beginners?

Yes - NinjaTek is a strong choice for beginners thanks to consistent quality and reliable printing behavior, though pricing is on the higher end.

What are the pros and cons of NinjaTek filament?

Pros of NinjaTek: Pioneer flexible filament brand under Michelin-owned Fenner Precision Polymers; NinjaFlex widely used for wearables, gaskets, and phone cases when dialed in; New EDGE 83A line targets higher print speeds than classic NinjaFlex; Consistent shore-hardness ratings across the product line. Considerations: Very soft NinjaFlex is painful on Bowden setups and needs 12-15mm/s speeds; Color-to-color behavior varies; even same machine may need different temps; Premium pricing versus generic 95A TPU.

How much does NinjaTek filament cost?

NinjaTek filament typically costs between $35 and $55 per kilogram, depending on the material and color. Specialty composite or engineering-grade materials sit at the upper end of that range.

Where can I buy NinjaTek filament?

NinjaTek filament is widely available on Amazon and from major 3D printing retailers. Look for the specific material (e.g. NinjaFlex) when buying to ensure correct print settings.