MyTechFun just pushed his review of the E3D Diamondback nozzle, and he found NO improvement in flow rate.
Unfortunately, he made no observations regarding stickiness to the nozzle, so that remains unknown. His conclusion is that it mainly offers greater longevity.
When it comes to the Obxidian 500, he got only a minor boost on flow rate when printing PETG through a 0.4mm nozzle, which is the case I’m most interested in:
Well, better to find that out before paying through the nose. Other nozzle–material combinations were much more favorable to the Obxidian 500, for anyone with interest.
Based on these results, I’m going to send back my Diamond tipped Durozzle without even taking it out of its package, as I rather doubt it would be better.
Unfortunately, he hasn’t yet tested the Phaetus Conch, so I may still have a run at that since it’s relatively inexpensive to see if I can get both higher flowrate and less hotend stickiness. However, it may be unlikely at 0.4mm if even the Obxidian 500 had only minor improvement with PETG over Bambulab’s standard nozzle at 0.4mm diameter. I’ll see what test results I can find from other sources; otherwise, I might just return it too on the theory that if an Obxidian 500 shows only weak improvement, it probably can’t do much better either.
Anyone here already tried the Phaetus Conch for H2D by any chance? The results reported for the X1/P1 series made it sound worse:
although the results reported by @Alex_vG for Bambulab’s Obxidian were considerably better, and I consider him to be a highly reliable source of information. Unfortunately, as far as I know, there is no Bambulab branded Obxidian nozzle for the H2D.