Jump to content

The secret to printing PA-CF


TheDullCarbide

Recommended Posts

Posted (edited) · The secret to printing PA-CF

I've been having that dreaded clogging while printing Colorfabb PA-CF. I have a 0.4mm hardened nozzle in an E3D V5 head, printing with 0.2mm layers. I found somebody in Reddit who hit the nail on the head. He said that when the extruder retracts, the fibers that were inside the 0.4mm hole stick to the end of the filament as it pulls back. Then when the extruder primes again, those fibers don't always re-align with the 0.4mm hole and sit on top of it sideways, clogging it. Now if this happened with an unfilled filament, that sort-of tail would just remelt in the nozzle. Since the carbon fiber doesn't melt, it just clogs the hole.

 

The guy on Reddit said that the key is to keep the filament moving forward. I tried this by turning off retractions and only using combing (even though Colorfabb says it can handle retractions) and I've done multiple >3h prints now without clogging. Also, being this filament is so hard, it handles very well without retractions and leaves very minimal stringing.

 

I hope this helps you as much as it helped me. Now if only I could afford another spool...

 

EDIT: Just realized this was posted in the completely wrong section. I reposted it in the materials section now. If an administrator wants to delete this, please do.

Edited by TheDullCarbide
  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
    • Our picks

      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
         
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
          • Like
        • 0 replies
      • Ultimaker Cura 5.6 stable released
        Cura now supports Method series printers!
         
        A year after the merger of Ultimaker and MakerBotQQ, we have unlocked the ability for users of our Method series printers to slice files using UltiMaker Cura. As of this release, users can find profiles for our Method and Method XL printers, as well as material profiles for ABS-R, ABS-CF, and RapidRinse. Meaning it’s now possible to use either Cura or the existing cloud-slicing software CloudPrint when printing with these printers or materials
        • 48 replies
    ×
    ×
    • Create New...