Bozzle V2 (0.5mm) Full Tungsten Carbide nozzle by Rentable socks

Have been using Diamondback 0.4 and 0.6 in my QIDI and Prusa for years. Absolutely great everything nozzle but the 0.4 can occasionally clog and DB is not recommended above > 300C due to the thermal expansion of the crimp, though I've run mine at 335-350 regularly. The 0.6 doesn't clog, but also gives up a bit too much detail for many parts. And neither of the designs increase flow rate.

The Bozzle 0.5 is small enough to provide good detail, runs at whatever max temp I can throw at it, and the max flow rate has gone up dramatically. The photo is of Fusion ABS 1.5 in ICB. Max flow rate at 280C on the Max3 has been 27.2mm3/sec with a 0.4 Diamondback nickel-over copper body with PCD tip

This photo is a 20-35 mm3/sec serpentine flow rate test. I had to increase the test speed to determine the new max of 39.1 mm3/sec. This is on the stock QIDI Max3 V2.5 hot end. No change in temp. The only change was in Orca for the nozzle diameter from 0.4 to 0.5 and associated default widths.

Just ran some PET-CF last night, and the flow rate increased from 14 to maxing out the 25mm3/sec test. Not yet sure how high it will really go! None of this would matter if the part details looked terrible, but honestly, it prints detail quite well.

So, what do I really think of the Bozzle? My 4th Bozzle is expected to arrive in the mail today since there's no way I'm taking it out of the QIDI. The other 3 are for an in-process RR VC4 and upcoming K3.

For QIDI Max3, Plus3, Q1 Pro folks
To use the Bozzle (or any V6 nozzle), you will need the inexpensive TriangleLabs QIDI adapter to use V6 style nozzles. This threaded insert will make up for the odd QIDI 14mm-almost-but-not-quite-a-16mm-long-thread-volcano nozzle in the hot end. Since these adapters will likely never be removable, it's a good idea to put it in a spare hot end that you can dedicate to V6 nozzles.

Thanks to rentablesocks for making such an awesome nozzle, and Fabreeko for selling it. Buy one you won’t regret it.

With the Bozzle I can finally print with high flow and good print quality at the same time! And because it’s tungsten carbide, I can also print with abrasives!

It's probably as close to perfection as you can get out of the standard nozzle formats. The Undertaker nozzle, but better.
•0.5mm aperture less likely to clog with fiber-filled engineering filaments
•Very little compromise on achievable detail
•CHT-like flow without obstructing path or complicating cold pulls
•Brass-like thermal characteristics
•Standard length melt zone for very slow work and standard retractions
•Still volcano compatible with an extension adapter if needed
•Will most likely never need to be replaced

This provides a significant and immediately recognizable increase to maximum flow rate. I believe my extruder is now the only limiting factor of my spaghetti output.