eSUN 1.75mm ePA-CF Carbon Fiber Filled Nylon Filament 1KG (2.2lb) Spool for 3D Printers, 1KG. Black

ran at 255C with 55C bed, preheated filament to 50C. Got nice smooth top layers no separation between between lines. started taking the supports out and the layers just started flaking apart like a grands biscuit.unless you you have a $1K set up don't waste your money, get PLA + its much tougher.

This filament was just awesome I have been testing out several different filaments and this stuff just beets them all. If your going to build something that is going to take a beating this would be my first choice.Printing at @ 250 nozzle temp 80 bed temp with a raft witch a light application of Magigoo before heating the bed.I am also using an enclosure that is around a constant 100f.

repeatedly clogs .5mm stainless nozzles, but when it works it is very nice.

Light and *very* stiff prints. Strong, but also a bit brittle. The filament is abrasive, as is the finished print, so I am not sure using it for gears or pulleys is the best idea. Also not good for things you might rub with your hand. And of course an abrasion resistant nozzle is a must.It prints reasonably well, thought it is "oozy". I got some little loops sticking out were the travels ended or began. Need to try some tweaking I guess.For the print surface plain BuildTak was useless - it never adhered at all. PEI seemed to adhere but always came loose after about 10mm height.Blue tape worked like a charm though.My go-to engineering material is still eSun "ePC" polycarbonate, but for things that need be to super stiff I will use this. I wished I hadn't got 1Kg as I don't know how long it will take to use it up. I am storing it in a rubbermaid "dry box" so hopefully it will last. If not I have a food dehydrator to dry it.