PC-NSP-04Hx1-MK8 MK8 Hardened Steel Nozzle 0.4 mm

For the price compared to brass, I was hoping for more. This nozzle wore out in about the same time as a brass nozzle using glow in the dark filament. The two prints (350 g total) I did get I had to jack up the nozzle heat as others have said and they were fantastic prints. About halfway through the third, you could tell the nozzle was extruding more than in the first half. I tried taking it apart and making sure everything was clean. I tried regular PLA with a similar issue so I put it under a magnifier, it had worn in an oval shape and was noticeably bigger than the other new .4mm nozzles I had on hand. So because I purchased specifically for use with abrasive filaments I give it a fail.

I agree with many other reviewers that the photos that accompany the listing lead you to think you are getting multiple nozzles.Regardless... This thing has been nothing but trouble. Bought it for my Ender 3 Pro to print large models with Hatchbox wood filament but it won't go more than a couple hours before getting clogged up. I tried a whole slew of different variations in temperature, speed, retraction, etc. and nothing made a difference. Most often, it would clog after about an hour. Longest I got was probably 4 hours before it clogged up. Got tired after 10 failed models and put the .4mm brass nozzle back on and it's still going strong after 20 hours.

oh man... I spent hours a day, several days a week trying to figure this out... So i put in my new nozzle and the troubles just began. Under extrusion, poor layer adhesion, skipping extruder motor. I even went for professional help.. everyone thought that it was either a motor or heat related problem. but even when turned up to 220C on PLA, I couldnt print. On a whim, when my spare parts came in, I tried a brass nozzle and everything went perfect again. For some reason this nozzle causes too much back pressure and has poor heat conduction. I also bought a 0.2mm nozzle that im afraid to even test now and consider this a complete waste of money. The nozzle does appear durable and doesnt even scratch from wrenches and such but is otherwise useless to me for 3d printing.I tried everything I could, from capricorn tubing, different extrusion systems such as Direct drive... and nothing could compensate for the back pressure on the system. I couldnt even force pla through by hand at 220C. for some reason they just dont maintain hot enough temps to melt plastic well and that adds to the back pressure (possible internal deformation that i cant see) and too much back pressure means countless failed prints.Ill be checking out E3d or micro swiss next time.

I haven't really used this nozzle on rough filament yet, but using it on pla and petg havent worked and here is why.I contacted their website support and asked them why my filament was having a hard time adherering to the bed and this is what they told me to go by.PLA, ABS, PETG, Nylon etc = use a brass nozzleRe-inforced materials, such as wood, carbon fiber, metal etc = use hardened steel and check on the filament manufacturers web page for tips and tricks.Main thing is only use on filaments that are reinforced

I bought this for abbrasive filaments and have had less then good luck. I have to peg my printers temp setting at 270 to print anything this nozzle is required to print and the bonding at that temp is not great for CFnylon, CFpc ect. With a junk brass nozzle I get way better performance at 270. Maybe if i could run my printer hotter it would be ok, but my limit on my machine is 270. Also everything sticks to it and balls up into a pile of crap.It was also pretty expensive for what it is in my opinion.

This would be my third nozzle replacement for my printer as my others have worn out too quickly, but it is working really good. I have been able to print harsher materials at higher temperature with little issues. It takes a little bit more time to heat up but it retains heat better than a traditional brass nozzle. Keeping nozzle clean is also very easy, i can easily remove burnt on filament without damaging tip, but using a real brass wire brush keeps it easily clean now.

The size of the hole is a tiny bit too small. I had to increase the temp by 6 c. This helped it lay prints, but it globed in spots making parts of the print un even. I was using PLA. I wouldn't buy this product unless you have a drill to increase the size of the hole. Overall Im disappointed my cheap brass nozzles out preformed this over priced junk. maybe I got a 1 in a million defective part. Its not worth the effort to return. Buy at your own risk.

Got this for my CR-10S so I could print carbon fiber PLA. (ZIRO stuff is a DREAM to print).Printed about 50 hours so far with no wear at all. Prints regular PLA as good, if not better than brass too. Definitely recommend getting a silicone sock for the heater block to help sustain constant temps.

So i got this nozzle with the aim to print wood filaments and maybe a carbon, however i just cant the flow right one second its oozing then it seems to clog up, even when running +10C as advised in the other reviews.Im sure some of this is just user error but its not a simple plug and play switch there are alot of things to consider/change.Overall it looks great, thread is a bit long for my standard ender 3 pro nozzle (think there is one or two turns outside the block) but i havent seen any leeks...but does mean if i want to switch to a brass nozzle i have to constantly readjust the z-offset and i have to space out the BLTouch so its the correct height.Think it would be cheaper and less hassle to burn through brass nozzles than have to mess with these unless your always printing abrasives

Good quality