Titanium V6 heatbreak V2.3 by 3D passion (1.75mm, All-Metal, Our in-House New Design), 1-Pack

You need this in your printer. Some background: I had a Prusa MK3 and it started out well, but continued to get more frustrating. The filament would melt/grind, a clog would occur, only to extruder normally after the gears could bite down on the filament. It turns out Prusa has its own version of the V6 heatbreak that works well with the multi material unit. It has a flair at the bottoms for the extra strands on the end of swapped filaments. Since I wasn't interested in an MMU, I decided to replace the heatbreak with a standard one. Replacing with a genuine heatbreak would most likely be aluminum or steel, neither are great at thermal efficiency, so the heat would still creep up the filament and too much retraction would give me the same problems. Enter this beast. Not only is titanium great at keeping the heat in the block and nozzle, the tolerances are insane! I have had zero issue with my filament or filament changes since installing. And my printer is faster and my detail is better than ever. Pros: - tight tolerances - 2 in a pack! - great price - thermal efficiency - smooth smooth bore - will make your printer better Cons: - this has set the bar very high for the competition I have pushed a normal V6 to 200mm/s with this before something else broke on my printer. After the fix I'm running 120mm/s with beautiful details. If you're considering this, buy it and make your life that much easier.

I did a LOT of research into the different levels of Heat Breaks available online and I compared many to the stock versions I had as well. There is a lot to be said about having a company out there that is trying to provide the same if not better quality than the main european 3D development company. With that said... why would you spend twice the price for only one when you can get two for less and it the machining work appears far superior. I really love the chamfer done with both ends of the throats which allow easy insertion and retraction without getting stuck or creating a bulbous knot upon cool down. Buy it and try it. Compare this to what you have. Notice the silky smooth almost mirror like inner areas and appreciate the thought that went into something so simple yet so important. This is a company to keep your eye on. The owner has a hot end that will be very convertible and scaleable. It is currently printing at 300ms and the videos are amazing! I can't wait to get my hands on one. I had many questions and the owner / developer had many good and supported answers for me. This is a lost art of communication and being able to communicate with the head guy is very nice and reassuring. I have noticed less stringing so far and I am currently doing more experiments with the titanium heat breaks. I plan on putting these on a modified Volcano setup and a few of my new builds coming up. My channel is in the photos on the caliper if you like precision 3D building techniques. This is why I appreciate this company so much! It saves me time with the poor quality items and lets me jump to the top with out spending an arm and a leg! I highly recommend this product and safe printing!

I've used v6 compatible heat breaks by many companies (including, of course, E3D.) This is, by far, the most well made one I've had. It's very obvious that "3D Passion" is extremely OCD and doesn't want any flaw in their product. From the precise diameter of the filament channel to the precision of the threading, this is the heat break to get. It's almost a disappointment that the heat break is completely hidden in the hot end assembly, not allowing anyone to witness it's perfection. There are some downsides to this precision: A PTFE tube that's only slightly thicker than 4mm diameter can be difficult to insert in the "cold side" of the heat break. The filament channel, being so precisely cut, can cause a bit of friction if the filament is curled. The former issue is easily cured by having PTFE tube that's properly manufactured, and the latter issue likely would never occur (as the filament channel would be warm enough to "uncurl" the filament.) Being made of titanium, and with thinner walls at the hot/cold transition, this heat break should better control "heat creep." The smaller bezel at the point of contact between the heat break and nozzle leaves less space for molten filament to pool into which can help to prevent "blobs" inside that area of the filament path which should decrease any chances of jamming. I can't offer any evidence of these benefits, as I never had those issues with a stainless steel heat break. I purchased this break break because I wanted the best at an extremely reasonable cost. It seems that I got exactly what I wanted.

First, I love the genuine and heartfelt "note" left inside the package. It really shows Vlad's passion for making a quality product. Second, it really looks like a genuine, precision engineered heatbreak. The bore does indeed have a mirror finish (looking at it with a magnifying glass showed almost no imperfection and zero imperfections with the naked eye). I appreciate the notches on top of the heatbreak to allow for *gentle* application of a flathead screwdriver to add just a touch of extra pressure. E3D's does not have that feature. While I haven't tested it fully yet I noticed that my hotend temperature increased at a higher rate than did E3D's when "snugging" everything up, leading me to believe it possibly does a better job of isolating heat which is what the maker claims. I will be fully testing tomorrow, but if my review doesn't change please take it as I was thoroughly impressed with the heatbreak and couldn't report anything of significance in regards to shortcomings or defeats.