6/22/2023 0 Comments Hemera titanium heat break![]() I no longer have capricorn tubing burning up after a few weeks with Luke's hot fix, and no more bulbous melted ends when retracting filament for a changeover. That said, I have been printing with both as I swap hot ends back and forth and find the design to be an improvement over the bowden tube contact design that comes stock with the CR6. I think it would be a basic design improvement that is not remotely novel or hard to come up with. It would be very easy for a consumer to thread the heatbreak too far into the heat block and leave too few threads available for the nozzle, or not far enough and leave a gap between the nozzle and heatbreak when nozzle bottoms out. The only other slightly bothersome thing to me is that the design is a mechanical copy of the stock heatbreak with a narrow throat, I think they should have make some improvements, like making an annualar surface they bottoms out on the heat block to the proper distance instead of emulating the stock heatbreak that just threads as far as you want. Speaking of thermal compound, if your custom designed product requires thermal compound, surely you could sell if with a small package of it instead of expecting the consumer to notice the description and buy it separately. ![]() Happy for someone with more knowledgeable of material properties to correct me and I'll admit I was wrong and learned something. While I admit I do NOT know enough about material properties to assure that isn't to account for thermal expansion difference between titanium and aluminum, I am assuming it's an oversight and probably why they note that you must use thermal compound on the heatsink side, probably to fill that gap. I measured stock heatbreak to about 5.95mm OD, while Spool3d's titanium measured 5.88mm OD. I bought two of these for my CR6, one for the hot end I have installed on my machine and a second for my spare hotend that I play with and do test fits with.įirst thing I noticed when installing was that the titanium heatbreak is a rattle fit in the stock heatsink.
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