Hi New to the forum but not to 3d printing. This is my 1st test drive with a hardened steel nozzle and decided to grab the Nozzle X for my Prusa MK3 I pre-heated (defaults) for PLA. Loaded up the filament and noticed instead of it streaming down like most all other nozzle changes it curls right back up and sticks right back to the nozzle. I increased temp like 10 degrees and it continues to do this. I know I need a bit more heat but whats with the curling? Sorry I have used brass for years so Im just trying to beat this before it beats me Is it a heat things? The same filament out of a brass nozzle streams out just fine? Im going to move ahead with my 1st layer calibrations just in case it needs a surface to cling to but curious and would like some advice about this nozzle. I purchased it to reduce nozzle changes and be able to print abrasives like carbon petg and pla Thanks
The only times I've personally experienced the curling effect is when my flowrate is too slow or when there is something obstructing the orifice or otherwise hindering smooth flow. The Nozzle X has a coating which is supposed to enhance the flow as opposed to hinder however, there may be a slight burr which was left on the nozzle prior to the coating process, or even a small nick in the orifice causing chaos. Can you get the nozzle under bright light and magnification and inspect it thoroughly for damage? I'm not too familiar with the MK3 but I believe you have an all-metal hot-end which would lead me to believe the issue is below the heat break, and if you're only noticing it when using this particular nozzle well, that kind of narrows it down quite a bit. Also, as long as I'm rambling, coatings can be as terrible as they are terrific. On a drill bit for instance, it's best to avoid coatings like the oh so pretty golden colored Titanium Nitride or Black Oxide when drilling aluminum because the aluminum wants to stick instead of flow along the flutes. You may be experiencing a similar phenomena with your current flavor of PLA. Good luck, Have a day! MadMan
I'm in your exact situation; I'm not new to 3d printing and this nozzle curls and sticks to the nozzle no matter what I put through it. It's most obvious when my MINI does its heat up sequence and the filament starts oozing. This is where all my issues with this nozzle starts, and it's a toss up whether the first lines are going to result in a nice print or if I'm going to have to abort because the crud on the nozzle sheds off on the print.... I can somewhat understand e3d may not be able to answer this to the tee, because there's a whole lot of (bad) filament out there that could be a factor, but the 3 different PLA's and 1 PETG I've pushed through it results in the same curl and nozzle stick. It's frustrating to say the least. And this isn't a super cheap nozzle, so I'm _hoping_ it's user fault, but I can't tell and I would really appreciate someone from e3d getting back to us with some sort of systematic troubleshooting steps that can confirm user vs nozzle fault.
Any update to this issue? I have been using an E3D hardened nozzle in my Mini+ with zero issues to print PC+CF (since the mini+ only has 100*C on the bed, I have had great luck using Vision Miners Nano Polymer bed adhesion, and the 100*C has been no issue for the normally 110-120*C preferring PC+CF)... That being said, I ordered a NozzleX for my Prusa MK3S+ and plan on printing the same materials through it. Is there a quality issue with the NozzleX? If not, what is the work around here? $35 for single tiny nozzle is hard enough to stomach, but if it is going to just curl my filaments, then I will just return it. I've used PC+CF filament from both 3DXTech and Prusament (even printed through 2KG from Priline), and none of them have any issues with the $20 hardened E3D nozzle on my Mini+. So maybe if I try the NozzleX with those filaments and it works, then it might be filament related? Either way, would be nice to hear a response.
