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CarbonX™ Carbon Fiber NYLON 3D Printing Filament

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  • CarbonX™ Carbon Fiber Nylon Filament
  • Carbon Fiber Nylon
  • Image 3
  • Chopped Carbon Fiber

 Product Description

CarbonX™ CFR Carbon Fiber Reinforced Nylon 3D Filament

CarbonX™ CFR Carbon Fiber Reinforced Nylon Filament is a semi-aromatic polyamide copolymer reinforced with high-modulus carbon fiber.  This filament is ideal for anyone that desires a structural component with high modulus, improved chemical and thermal resistance, excellent surface quality, and ease of printing.  Tired of nylon that warps?  This is the answer you've been looking for.  Excellent dimensional stability comes from the carbon fiber and the semi-aromatic nylon.  

Why is it important that CarbonX™ CFR Nylon is a semi-aromatic polyamide?  Semi-aromatic nylons have a large cyclical structure in its backbone which makes them stiffer, more chemically resistant, less moisture sensitive, and have improved dimensional stability vs. aliphatic nylons such as PA6, PA66, and PA12.

New Data:  We updated the mechanical and thermal data on our carbon fiber grades.  You can see the new data HERE on our blog.

Chemical Resistance Chart


Please note:  Customers should test their parts to determine end-use suitability using this polymer.  

CarbonX™ CFR Nylon is suitable for use in practically any desktop 3D Printer that has a heated bed.  Please note - carbon fiber reinforced filaments are abrasive and can wear out a brass or aluminum nozzle.  We recommend our A2 Hardened Steel Nozzles - HERE

*Please note:  2kg and 4kg reels are special order and generally take 2-3 days to ship.  XL reel dimensions are 11.75" diameter, 4" wide, 2" arbor.  

Product Attributes:

  • High Modulus Carbon Fiber - excellent stiffness
  • Semi-Aromatic Polyamide
  • Lower moisture uptake vs. PA6
  • Improved chemical resistance vs. PA6
  • Less shrinkage / warp vs. PA6
  • Low-Gloss Surface
  • Excellent Printability    


 Recommended Print Conditions:

  • Extruder:  240-270°C.  CarbonX™ CFR Nylon exhibits improved layer bonding at higher temperatures.  
  • Bed Temp:  100 - 110°C
  • Bed Prep:  Polyimide Tape, Clean glass with ABS/Acetone Slurry
  • Nozzle: 0.4mm or larger.  We currently recommend our A2 Hardened Steel Nozzles - HERE
  • Drying - very important.  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.  

 Product Reviews

  1. Great Nylon infused filament - just a few quirks

    Posted by Trevin on 11th Jan 2017

    I'll start first by saying Matt was extremely helpful when I had issues with my first roll of this CF Nylon filament. Mine had somehow absorbed moisture and wouldn't print properly. With about 8 hours of drying in an oven at 70 C, it started to print well. It still took a few hours of tweaking and tuning after that fact, but I believe the second half of the roll is actually printing normally. Again, Matt made up for this and made everything right.

    For those having issues with it jamming or not extruding through the entirety of the part - turn down your retraction settings. Just like another reviewer mentioned, this stuff is very brittle prior to printing. Therefore, it also has a hard time with grip. I used this on FlashForge Creator Pro with Simplify 3D and the Microswiss all metal hot end with good results on smaller prints. Unfortunately, my larger prints didn't fare well, which was the intention of the purchase of this filament, but I've managed to use the CF PETG instead for that project.

    The other projects I've used for this nylon required strength in both tension and compression as well as linear loading curves with sudden impact loading. I did manage to break those parts due to a design flaw but the actual material held up very well. Those same parts have been redesigned, they're lighter and stronger than the originals and perform well above the previous components baseline. Excellent results.

    This filament does spring out of the roll, so I have been designing a filament tension device that won't let the strand spring out of the roll. I intend to mount all my spools on the wall above my printers and this is a must for these types of filament. It will mount to the spool and rotate with the roll. When it's done I'll send it over to Matt and see what he thinks. Until then, keep tension on the roll and use a paper clip/clamp to keep the line in place when not under tension.

    Thanks again to Matt and his team for helping me out when I ordered this. I have since ordered a least a dozen other spools of filament from 3DXTech and will now use them for my primary filament source.

  2. Good CF loaded Nylon with a couple issues

    Posted by Mike on 24th Dec 2016

    PROS: very high modulus, low warp, low shrink, high strength to weight ratio

    CONS: unspooling/feeding difficulties, some fiber dispersion issues

    First the bad. This is a good test for your extruder/feed system. The filament is very stiff and brittle, so you need a clear, straight filament path, free wheeling spool holder, high pinch wheel tension, etc. The extruder wheel has a hard time biting into this material and the memory from the spool also makes it difficult to feed. I am considering a dual drive extruder like the Bondtech for a more robust feeding system. I suspect that the reviewer complaining about clogs was actually just losing the feed. Once the drive wheel slips, this material polishes up like glass and there is no recovery.

    There also appears to be some unwetted fiber that will get pulled out of the melt and redeposited in clumps. Using a hot end cover like E3D has seems to help. Fiber dispersion under a microscope shows polymer rich areas and fiber rich areas. While I appreciate that achieving perfect fiber dispersion in a .070" filament is not a trivial task, some improvement in this area would be welcome.

    Now the good. As long as you can keep this material feeding, it will print without much difficulty. Compared to other CF nylons, the warp tendency is very low and adhesion to glass/glue stick is good. I have been printing at 60 C bed temp, as I found that to be optimal for a competitive material. This filament seems to be much less sensitive, probably because the low warp factor makes bed adhesion a trivial matter. Shrinkage appears to be very low and flexural modulus is very high. If you need very rigid parts that have reasonable heat, water, chemical resistance, this is a very good material.

  3. Failed for Me

    Posted by Nate on 29th Aug 2016

    I received a sample pack and tried using this in a 275 degree printer. I successfully printed a Nylon part just prior, but was unsuccessful printing the same part with this material. The nozzle clogged about 1/5 of the way through the print. After unclogging the nozzle, I tried again with slower print speed, same result. I cannot be sure why the print failed, so I will not guess. What did print is good, though. Seems very strong and stiff.
    The filament is also very stiff and very brittle, so be careful if you try to bend it AT ALL. When I cut the ties from the filament, I got the worst Slinky snarl I have ever seen. It was a total PITA to try to get on a spool.

  4. Quality CFR Nylon

    Posted by Unknown on 29th Jul 2016

    This was my first endeavor using a carbon fiber nylon. There were several different types to choose from, but ultimately went with 3dxtech because of the test data they had on their website.

    I'm using this material on a Flashforge Creator Pro with a MK10 all metal hot end with a 0.6mm nozzle (started with a 0.4mm), 270C, 110C bed, 60mm/s @ 0.2mm layer height, 1.75mm diameter filament.

    To begin with I just printed a small cube with thin walls to dial in the print settings. I had trouble with the filament getting stuck in the extruder after just a few layers. I tried several temperatures from 240-280 and nothing worked. It turned out the filament wasn't getting clogged, but the extruder gear was just slipping on the filament. I decided to get a 0.6mm nozzle thinking it will require less force to push the filament and therefore eliminate the slipping. Once I did this the filament never slipped. The part came out perfect and the material is great, it's very stiff and lightweight.

    I haven't had any bed adhesion issues, and I'm using the original FFCP blue sheet with a HIPS raft. I like the HIPS raft because it comes off the cfr-nylon easily, but still get good adhesion between the filaments.

    The surface finish of the parts have a slightly rough surface which you can easily sand if you want a smooth surface.

    This was also my first time printing nylon and while it does ooze (still dialing in the settings) it's not so much of an issue so long as you keep the print head moving.

    Overall, I'm very happy with this filament and am looking forward to getting more products from 3dxtech.

  5. Best CFR Filament

    Posted by Unknown on 9th Jun 2016

    I was able to get this product to print on my first run with a Robo3d R1 plus. i used 260C for extruder and 60C bed temp with blue painters tape and it worked flawlessly. Make sure you are in a well ventilated area as recommended because it does put off some smell when printing.

  6. Best CFR Filament to date!

    Posted by Ray on 29th Jan 2016

    I've used a lot of CFR filament, ABS, PETG and now Nylon, and this is by far the best stuff I've used. I'll explain my setup, but the results I'm getting are no clogs, no nozzle buildup, no warping and perfect bed adhesion. I have set 12+ hour prints with this stuff and forgot about them.

    I use an enclosed TAZ5 with E3D Volcano .6mm CleanTip treated steel hotend (which is basically the A2 Hercules but with a longer threaded neck), PEI heated bed with a light UHU coating,1.75mm filament @ 255 degrees, 110 bed, 60mm/s speed and .3mm layers. I print functional parts for paintball guns, and the tolerances that I'm getting from my first spool of this stuff are spot on with PLA/PHA and quality ABS (like 3DXTech's stuff). There is probably a small amount of shrinkage, but nothing noticeable. All the fluff details regarding this polymer aren't fluff, this nylon is unlike any I've printed with before (Taulman's Bridge, 618 and 910). I was shocked to not see any corners lifting, and impressed when I had to pry it off my bed.

    The surface finish is that excellent slightly rough dark gray that seems to disguise print lines, and the results are gorgeous, even with the thicker .6mm nozzle. The finish is slightly lighter and more matte gray than CFR PETG. Strength is above any other reinforced polymer that I've experienced. It's not as strong as pure nylon, as is expected with CFR materials. What you lose in tensile strength you gain in stiffness, lightweight and surface finish. It still has very strong layer bonding, just know that carbon fiber doesn't do for filaments what continuous strand fibers would, it's a different utilization.

    The only thing keeping this stuff from a perfect score is what I have experienced in all CFR filaments: given that the stiffness is increased so much, the filament is initially difficult to feed as it has a strong desire to unwind itself and snap, especially the smaller 1.75 stuff. I have used 2.85 PETG and ABS without the breaking issue, but still the unraveling. I would advise using some cardboard to increase the size of the spool "walls" to decrease unspooling, but this can cause some frustration, and I am hoping that suppliers can come up with a solution. I went through a few yards of unusable filament after breaks during the first feedings. Once the spool gets lower, then so long as tension is maintained on the line, it stays put.

    All in all, I just put an order in for 4 more spools of this stuff, I'm completely satisfied and thank the 3DXTech team for their superior service, operations and products. Keep up the great work, and know you're going to be happy with this filament. I'd go as far to say it's easier than PETG to print, and in my experience just as easy as ABS, if not better given the lower tendency to lift off the bed. Love love love this stuff!

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