Obsidian PA6+CF [Markforged ONYX Alternative] (800cc)

SKU: NYL13011000BK0
Obsidian™ PA6+CF is an excellent drop-in replacement for Markforged Onyx™ and is compatible for use in all Markforged printers. Obsidian™ delivers excellent performance, appearance, and a significant cost savings. 800cc spool, 1kg. 


Obsidian™ PA6+Carbon Fiber [Markforged ONYX Alternative]

Obsidian™ PA6+CF filament was formulated to be a lower-cost drop-in Markforged Onyx Alternative suitable for all Markforged printers. This material was developed after extensive analysis and testing on Markforged printers and many beta testers. The result is a seamless printing experience that produces parts with an outstanding appearance and excellent mechanical properties. Made using premium high-modulus carbon fiber and PA6 copolymer, Obsidian™ is an excellent alternative to Onyx™ that allows our customers to save money when using your Markforged printer.

Don’t have a Markforged printer? That’s no problem – Obsidian™ is also compatible with all non-Markforged printers that are suitable for printing PA6+CF.  Take advantage of the excellent strength, stiffness, and appearance of this specialty material without over spending on Markforged Onyx™.

Benefits of Obsidian™ PA6+CF [Markforged Onyx Alternative]:

  • Drop-in for Onyx™ without any changes required to print settings
  • >30% savings vs. Markforged Onyx™
  • Excellent strength and stiffness
  • Resistant to aliphatic hydrocarbons (oil/gas/lubricants)
  • Superior dimensional stability (low warp/shrink/CTE)
  • Compatible with Markforged FX20, X7, X5, X3, Mark Two, Onyx Pro, and Onyx One printers

Filament Specifications:

Diameter:  1.75mm +/- 0.05mm

Markforged Print Recommendations:

  • Obsidian™ was formulated to be a drop-in for Onyx™ without any changes to the print settings.

Recommended Print Settings for Non-Markforged Printers:

  • Extruder: 265-285°C
  • Bed Temp: 90-110°C
  • Bed Prep: Nano Polymer Adhesive
  • Hardened Nozzle: 0.4mm or larger. We strongly recommend our Hardened Steel Nozzles
  • Heated Chamber: Recommended
  • Supports: AquaTek™ water soluble X1 USM Universal Support Material is designed to work with complex models
  • Drying Instructions: 90°C for 4 hours if the filament exhibits signs of moisture


Drying - very important: (See our Filament Drying Kit) This product is supplied dry and sealed in thick 4mil pouch with several packs of desiccant. However, it is made using nylon and will absorb more moisture than other resins when left exposed to the environment. Excessive moisture will result in popping at the nozzle (water boiling off, a little steam) and excessive drooling and nozzle build-up. Make sure to keep this filament in a dry location between uses. If the filament does get wet, you can dry it out with a basic toaster oven (not one for the family food!). We recommend drying it for 2-3 hours at 70-80°C. Caution: Make sure to check back often to make sure you're not distorting / melting the reel - the reel itself has lower thermal resistance than the nylon filament and will distort / melt before the nylon.

Download MSDS & Technical Data