PA6-CF Settings for Markforged Onyx Pro

Recommended slicer settings for printing PA6-CF on the Markforged Onyx Pro (320 x 132 x 154 mm build volume, 200 mm/s max speed, direct drive extruder).

Not Compatibleadvanced

Not Compatible

The max bed temperature of 0°C is below the recommended 85°C for PA6-CF. Adhesion may be poor without additional bed adhesion aids.

Filament Nozzle Requirement255-280°C
Printer Max Nozzle280°C
Filament Bed Requirement85-100°C
Printer Max BedN/A

What to do instead

  • Your printer's bed maxes out at 0°C, but PA6-CF needs at least 85°C for reliable adhesion.
  • Try a compatible filament for your Markforged Onyx Pro — PLA, PETG, and ABS are good options.
  • If you need PA6-CF specifically, you'll need a printer with a hotend capable of 255°C+ nozzle.

PA6-CF Requirements

PA6-CF Properties

Nozzle Range255-280°C
Bed Range85-100°C
Speed Range25-45 mm/s
Difficultyadvanced
EnclosureRequired
Drying85°C / 12h

Markforged Onyx Pro Specs

Build Volume320 x 132 x 154 mm
Max Speed200 mm/s
Max Nozzle Temp280°C
Max Bed TempN/A
ExtruderDirect Drive

PA6-CF at a Glance

Strengths

  • Extremely stiff and strong
  • Better dimensional stability than PA6
  • Reduced moisture absorption vs plain PA6
  • Professional matte finish

Weaknesses

  • Hardened steel nozzle mandatory
  • Very hygroscopic — dry box printing essential
  • Expensive (~$50-80/kg)
  • Brittle compared to unreinforced PA6

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Sources: Based on manufacturer specifications and community recommendations, community testing data, manufacturer recommended ranges. Values calculated from filament specifications and printer hardware limits.