I have been printing about 2kg of sainsmart epaCF (PA6), which supposedly is the exact same as esun epaCF so far and didnt see any wear on my 0.4 brozzl steel nozzle and no clogs so far. Fan at 0 is not mandatory, but if you turn up the fan, you will get bad layer adhesion.
Same with speed. You can print relatively fast up to 60mm/s, but layer adhesion improves if you go slower. I print most at 30mm/s
Recommend printing on a glass bed with magigoo PA, that stuff is really good.
@david3 I wanted to try epa12CF for a while now but was hesitant because the PA6 parts that I printed became very soft when wet and expanded to a degree, that dimensional accuracy is completely off.
Even though PVA supports work great in print, I cant get them off, because the parts start warping as soon as I put them in water…
PA12 is supposed to be better in that regard, whats your experience with that?
I had similar results as you with PLA supports, but native Nylon supports work equally well.
Something that I tried, that also looks promising, is Nylon with PLA (SUNLU PLA-CF) infill. Nice way to get stiffer parts with beautiful surface. The adhesion is on the weaker side, but sufficient for smaller parts. I can separate the skin and the infill when I tear a part down, but in normal use, I can see no problems.
If surface quality is your main goal, I would recommend Prusament PC-Blend CF, that stuff is remarkable, worked flawless on first try.
Extrudr xPETG CF is also a nice material that doesnt string much, and gets a deeper black than nylon and PC, those are rather dark grey.
Printing on an Artisan btw. The image is PC-Blend CF at 0.16 layerheight, still a work in progress though…
No warping with any of the mentioned materials.