Alternative to Prusament PA11 Carbon Fiber  

RE: Alternative to Prusament PA11 Carbon Fiber

Filament PM has some carbon fiber filament. It is their CFJET. It is PETG with carbon fiber. I use some of there other filaments and they are ver y good.

Tom

RE: Alternative to Prusament PA11 Carbon Fiber

Thanks but that wont do heat resistance for me.  The only reason I'm printing in Nylon is so it can handle higher heat than PetG. The Filament PM site says 

✅ High-temperature resistance up to 70 °C

That is same as PetG and not for my usages. I need high resistance for instance that Prusament PA11 Carbon Fiber is up to 190c.   

I ordered Polymaker PA12-CF Nylon from Amazon but it takes weeks to show up!   
Some vendors are really bad about posting details like heat resistance.

RE: Alternative to Prusament PA11 Carbon Fiber

I can recommend Fiberthree PA-CF Pro. Its not cheap but the material is almost as strong and heat resistant as metal.

RE: Alternative to Prusament PA11 Carbon Fiber

Filamatrix Nylon-Glass is good up to 150°C .  They also have a Nylon-CF which is good to 147°C.

Both tough as rocks, easy to print.  Needs an abrasive resistant nozzle, though.  I use a 0.4 TC nozzle, and Buildtak Nylon+ build surface.  I print replacement car parts, and never had a complaint.  For the extra $5, I am now going with the glass only.

https://filamatrix.com/wp-content/uploads/2022/06/Nylon-Glass-Enhanced-TDS-7.19-edited-2.pdf

https://filamatrix.com/wp-content/uploads/2022/06/Carbon-Fiber-Nylon-TDS-2.19-edited.pdf

Good luck,

RE: Alternative to Prusament PA11 Carbon Fiber

@Peterki  Does the Fiberthree PA-CF Pro need a special nozzle?  I only have the stock one right now.   I assume the filament isn't a nightmare to print with.

@Eric E - Can you please point me to a nozzle I should get for something like that?    I have the stock one installed, that is not going to work?

Thanks!

RE: Alternative to Prusament PA11 Carbon Fiber

Yes you need a hardened steel nozzle. But I believe you need that for any carbon filled filament...

RE:

https://www.3dmakerengineering.com/collections/3d-printer-nozzles/products/tungsten-carbide-3d-printer-nozzle

A bit spendy, but you will never have to replace it, same thermal conductivity as brass, so no profile changes, and you can cold pull without worries unlike some other choices.  Really happy.  I print most everything, without worry about my nozzle.

Others also have good luck with (and more nozzle size choices):

https://spool3d.ca/tungsten-carbide-reprap-m6-nozzle/

Still spendy, but still solid TC. 

Beware of other choices that are just TC coated, or coated with *something special* - it isn't worth saving $10 IMHO.  Go for solid TC.  Printing is fun, tweaking, failed prints and wondering if your nozzle is pooched is not.

RE: Alternative to Prusament PA11 Carbon Fiber

Been using the Dyze Design (DDK-01082)  M6 1.75mm tungsten carbide 0.4mm nozzle for over a year now for everything including electrically conductive filaments for SEM sample holders.

No need to change any parameter compared to regular nozzle since the thermal conductivity is almost the same.

Looks like it would be perfect for your application.

RE: Alternative to Prusament PA11 Carbon Fiber

A picky friend of mine invested in Dyze nozzles, and is very pleased.  Not 100% TC, but definitely a meaningful upgrade over brass for abrasive purposes.  Should still last the life of the printer, which brass won't under any conditions - abrasives or not.

Another consideration is proper geometry (e3d spec).  3dmakerengineering, spool3d and dyze all have correct geometry, which is also very important.  Knucklehead clones, you take your chances.  Clogs, stringing, failed prints, vapors, incontinence - well, you take chances to save a few coins.

RE: Alternative to Prusament PA11 Carbon Fiber

Thanks!  I have that Dyze coming and also 2 different types of Nylon/Carbon Fiber including the Fibertree PA-CF Pro.    The Nylon prusa plate is on the way too. 
Will dry in electric oven ~180 for may be 6 hours
I might try putting a clear garbage bag or packing bag of sorts over the top while it prints (I don't have an enclosure).

RE: Alternative to Prusament PA11 Carbon Fiber

Got that Fiber Three and it was printing amazingly!  But then on my third print it got stuck inside the printer and I can't get it out.  Trying to get it out the top snapped.  Its stuck completely.  Trying all the stuff I know and videos but wonder If I will have to take the whole thing apart now.  Its just not budging in the slightest. I wonder if this is a Nylon thing or what. I'm heating to 275.  

Any tips or tools for this let me know. Or videos if i have to take this whole thing apart.  

RE: Alternative to Prusament PA11 Carbon Fiber

I believe I got it clear. I decided to go to the manual heat section and set it high.  I got it up high and was able to pull up through the window. Then load and push through and am printing. 

While printing I took note that its printing at 285 (didn't realize that before) and all the Load and presets for preheating (PC) are 275!  Also the sticker on the filament says 275-285....  So It is possible that 275 is too low, at least for fixing a clog. 

The Load I use is PC - 275 which loads it fine.  

RE:

Hrm. Was printing great again and then half way through the print another hardcore jam.   Using the right profile and also its been printing great.  Realizing I never swapped the nozzle out. I'm using the stock nozzle.  Could that cause the jam?

I bought the Tungsten one.  Perhaps that would work with the Fiber Three?