Mellow bi-metal and copper heatbreaks  

Not great results

This may be unpopular opinion, but I tried both Mellow and TriangleLab bimetal heatbreaks (albeit on my Artillery Sidewinder printer) and quickly tossed them and replaced them with an E3D Titanium one-piece heatbreak. In both cases, the bimetal parts caused feed problems that I can only assume were due to internal machining or finish. I have not tried a Slice Engineering heatbreak, and I'd expect those to be excellent, but I am not having any heat creep issues with Titanium at up to 270C. If I were printing at higher temps, I might be more interested.

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Thanks for quick reply!

I was thinking about the trianglelab titanium heatbreak too - I hope it would preform better than bondtech one .

Do you have any comparison between these two ?

TriangleLab one-piece parts are good, but probably not any better than Bondtech

Posted by: @pinkie-pie

[...] I was thinking about the trianglelab titanium heatbreak too - I hope it would preform better than bondtech one .

Bondtech has a good reputation. TriangleLab is good at cloning (aka stealing) other designs, but I just don't think they're up to some of the more advanced techniques required for bimetal. I am under the impression that they're being challenged on Slice Engineering's patents which, unfortunately, seem to be the best way of fighting off low-cost cloners.

TriangleLab and Mellow do a fine job with one-piece nozzles and heatbreaks, so I have no hesitation using them on technical grounds. I just don't know that they'd be any better than a Bondtech. Keep in mind, my experience has been with my Sidewinder using Volcano-style heatbreaks.

Chinese

I have used the mellow and several other knockoff heatbreaks, like Bobstro, I have not had great results outside of my first Mellow.  I think there are quality issues.  I like there nozzles, but will stick to the Bondtech heatbreak for the min.   

Posted by: @pinkie-pie

https://www.aliexpress.com/item/1005002530759732.html?spm=a2g0o.store_pc_groupList.8148356.7.57b4f36fUZagLb
https://www.aliexpress.com/item/1005002530699456.html?spm=a2g0o.store_pc_groupList.8148356.1.57b4f36fb3iFws

Has anyone tried these?  How do they preform in comprasion to Trianglelab titanium heatbreak?

I've tried original bondtech heatbreak but it was big disappointment , too many issues that could not be fixed.