The highest quality 3D Filaments for the job

> Onyx™ with reinforced fiberglass (ten times stronger than ABS)

> Smooth TPU 95A (flexible)

> Precise PLA (for prototyping)

Don’t just replace your part, upgrade it to a stronger material. 


Micro carbon fiber filled nylon with reinforced fiberglass.

Onyx™ is a micro carbon fiber filled nylon that yields accurate parts with near flawless surface finish. Few materials have the versatility of Onyx; it offers high strength, toughness, and chemical resistance when printed alone, and can be reinforced with Continuous Fibers to yield aluminum-strength parts. Today, there are more than a million Onyx parts in the field transforming manufacturing.

This filament only works on very expensive, industrial 3D printers. Replace My Part invests in the best machines possible to give you the best materials available. This material truly is space-age and makes normal plastic look cheap.


  • Plastic Part Replacement
  • Housings
  • Sensor Mounts
  • Cosmetic Prototypes

Flexural Strength

Markforged Onyx

Heat Deflection Temp

Markforged Onyx

Smooth TPU 95A

Smooth TPU 95A is a rubber-like material that when used with Markforged composite printers offers product developers and manufacturers the ability to create flexible, impact-absorbent parts on demand.


Manufacturers have historically struggled to produce flexible parts in low volumes. Conventional methods to make custom geometries in these materials generally require one-off tooling, driving high start-up costs and long lead times. Few, if any, 3D printing systems can produce viable parts with the consistency and mechanical properties required for production.

  • Bringing high quality to low-volume flexible parts. 
  • Stunning geometric fidelity and surface finish.
  • Finally, an easy and economical way to print functional flexible parts!


  • Seals and gaskets
  • Shock absorbers
  • Protective coverings
  • Straps, bands, and drive belts
  • Non-marring work holding and grips
  • Wheels and treads

Markforged Smooth TPU 95A now offers manufacturers the ability to make high quality, flexible parts – on demand. Manufacturers can now make anything from prototype consumer products all the way to production parts on an easy-to-use and reliable platform.

Precise PLA

A cost-effective thermoplastic for design validation.

Precise PLA is our easy-to-print plastic for precision concept modeling and validation. Based on the most common 3D printing prototyping material, Precise PLA 3D prints without warping and comes in a variety of colors. Best of all, it’s affordable. So you can use as much as you need to fine-tune your designs before implementation.



  • Part prototypes
  • Fit checks
  • Color coded indicators

High-speed prototyping

Rapidly print and test your prototypes so you can quickly — and easily — fine-tune your part designs before final implementation.

Precision parts

Validate and implement your designs on a single platform built to produce reliable, repeatable results — every time.


At 1/3 the price point of Onyx™, Precise PLA is the ideal material for protoyping and printing low-performance parts.

During each step of the CAD design process — from design to final, functional part — Precise PLA allows you to quickly and affordably 3D print to check for accuracy in actual form.


Our Guarantee: If the part we re-create doesn't fit or work like the old part, we'll give you a full refund.