Genuine E3D V6 All-Metal HotEnd 1.75mm Universal w/ Bowden Full Kit 12V (V6-175-B)

Yeap, I received mine relatively quickly. Received in a tiny box, not the one I see as "original" from the e3d website, but everything was in there... If it is not original then it is an extremely perfect copy ;)Assembly takes one to two hours if you are meticulous as me and reads all the instructions from the wiki link found in e3d site and a couple of videos of what to do and what not to do.The hard part is to introduce the thermistor with the fiberglass isolators inside the metal block..The very first print with the new hotend installed was pretty good. The only problem found is that the fan sends the airflow directly to the bed and if you are printing with ABS for sure it will increase the warping/corners lift. So I printed the fan duct ( 547325 thingiverse part created by Tec2C ) and fixed the airflow issue.Bottom line is I'm very happy with this hotend, pretty much better than the mk8 tha came with my Prusa I3. Faster prints with better precision.I recommend you to purchase a 0.3mm nozzle for a better resolution/ fine details print. It is available directly in the e3d site and the shipping is incredibly fast to US (FedEx). Be careful don't break the thermistor.

This is a beautifully made piece of equipment. It's practically a work of art. Excellent assembly instructions. I'm new to 3D printing; I built a Rostock "delta" printer using mostly scavenged parts, and was struggling to print using a J-head hot-end, with the little tiny glass thermistor taped in place with Kapton tape. I thought I had something terribly wrong because of the awful print quality I was getting. I read about this hot-end and decided to give it a try. It works _great_. I've even crashed it into the print surface a few times, as well as having the printer drag it across the plywood printer base, and it's still working wonderfully. Well designed, precisely made, and worth every penny!

After installation and during testing/calibration: with about 4 hours of non-continuous printing complete, extruder temp started "jumping" by 7-10 degrees up AND down during a print, and printer shut down. After restart, problem continued, then seemed to stop... then PLA filament jammed. After disassembling and clearing the jam, heatbreak could NOT be reinserted into the heatsink, and I noticed stripped threads on the heatbreak which I'm certain I didn't do. Waste of time/money.

I was hesitant to purchase this via Amazon given the large number of fakes and knockoffs and even reviewing showing they had received them on this listing. However mine arrived via 3DMakerWorld which is a verified E3D reseller in the US per the E3D website.Mine came with every little piece it was supposed to, as well as extras. Everything packaged identically as one would get from E3D, just minus the little Haribo candy.Had no problems assembling or mounting this on my Primary MK2s other then I needed to source a 40w Hear cartridge elsewhere, as this only has a 30w. Not the sellers fault at all, as I had planned for this. Hotend prints like a dream, no a single issue this far and very pleased with my purchase.

As far as I know, E3D etches their logo onto the heater block. The included aluminum block with the 30W heater cartridge and thermistor, have a hard time to heat to 200C without triggering an error in firmware. One could probably tweak firmware settings to circumvent this behavior, but I probably would make it worse.So, I am not sure if this product is 100% genuine or if there is a mix up with E3D part and something from china? Some of the included components seem genuine, some don't.I can PID tune to about 195C, beyond the firmware says I am not happy.My best guess, the 30W cartridge can't heat fast enough to be reliable with Marlin Firmware.Addition:After running several PID tuning cycles, the setup seemed to work even with PETG until today, that is.Apparently the thermistor reported way low temperatures and killed my print, 2 hrs in.It seems to me, that the individual components in my batch, don't work in harmony. The 30 Watt should be able to get up to 300C, it might just take a little longer, but the thermistor simply reporting 227C whilst the requested temperature is 235C is not what I call reliable (after PID tune). The china made thermistor I have in the box (5 at the cost of 1 E3D) work far better. I will toss the E3D thermistor and heater cartridge with low cost ones and probably be happy.

I was very happy with the quality and ease of assembly. The parts fit perfect and the E3D website has very detailed assembly instructions. There was also a noticeable increase in quality of the print.The reason I took off one star is because I had issues with the heating cartridge. The stock one from my printer was 40 watt. The one with the kit is 30 watt. When printing PLA, it took a longer time to get up to temp which isn't a big deal but once the cooling fans came on, it struggled to maintain temperature. I mainly bought the hot end to print PETG so I often run at higher temperatures. This was a problem for the heating cartridge. I had several failed prints due to low temp alarms. I even turned the cooling fans down to 20%.I ended up getting a 50 watt heating element from TH3D and replaced the one from the kit. It's been running flawless since then. No more issues with temperature regardless of any other settings.Overall, I think it is a great product just be aware that the heating element may be slightly under powered depending on your use