The Creality MK-HF Nozzle Kit at least comes with a 0.25 mm copper alloy nozzle which has a better heat conductivity than the regular brass nozzles, should be high enough quality and it’s compatible with the Zero. Obviously, you can also get these same (or same looking) ones from aliexpress for possibly cheaper but that Creality kit may be available more locally if you are in a hurry.
Don’t print any fiber containing filaments with nozzles smaller than 0.4 mm. ASA could be suitable for your use case, but that’s just a guess.
I don’t know what your parts look like but I’ve had good success by overriding the minimum layer height to .05 mm with a 0.4 nozzle. You have to rotate your parts so that the areas of high detail are NOT in the XY plane.
Be sure your slicer is set to Arachne wall generator.
I ordered a 0.2 mm Microswiss MK8 nozzle but haven’t tried it yet. Microswiss nozzles are more expensive but they are high quality parts with excellent design and attention to detail. They have a hard non-stick coating or plating that improves internal flow and reduces material buildup on the outside of the nozzle.
I’ve printed 10% short strand carbon fiber in a 0.4 mm nozzle but generally print carbon fiber in a 0.6 mm hardened steel CM2 nozzle. I definitely wouldn’t try to print carbon or glass fiber in a 0.2 mm nozzle. I’d probably print high resolution parts from PLA or ABS… maybe ASA. The Zero prints ABS very well in my experience.
I haven’t tried the MK8 nozzle but I did upgrade the hotend on my SV08 and the difference was night and day. Their nozzles are very good. I run CM2’s and CHT’s. I spoke to Microswiss recently about plans for an upgrade for the Zero but they don’t have any :(.
I never tried the stock Sovol hot end on the SV08. I upgraded it to the Microswiss hot end as I was assembling the SV08 and have been happy with the Microswiss hot end. The original required removing and replacing the heater and thermistor to change nozzles, which seemed silly. I can unscrew a Microswiss Flowtech nozzle and screw in a new one.
The MK8 nozzles on the Zero and SV08 Max are similar - a simple screw in replacement. There isn’t much incentive for Microswiss to sell a hot end when they already sell their line of MK8 nozzles that fit the Zero and SV08 Max and work very well.
You’d need to layout a hole and put an insert in the extruder mount plate.
You’d also need a PT1000 that fits the target heater and relocate the MUC board (or extend the heater and PT1000 wires). Triangle labs sells a PT1000 for a stock SV08 but there isn’t a picture of it.
Cut a piece of PTFE tube 9mm longer than stock to provide a smooth filament path.
OOPS. I had the part fan turned off when I was considering moving the board… I don’t see a way to drop the MCU board without a whole new front cover.
