Comment on [Troubleshooting] Cannot fix a clogging issue.
papalonian@lemmy.world 8 months agoPrinter is an Elegoo Neptune 3. Nozzles are just some generics I got off Amazon. I know people like to harp on quality nozzles, but I’ve been using them for around a year, and I don’t think that all of them suddenly stopped working. Some of the ones I’ve tried are brand new as well, so even if the nozzles all got worn down beyond use at the exact same time (despite drastically different print times between the different sizes), the new ones should at least be able to extrude filament.
Thermistor and cartridge are undamaged. I haven’t done anything to specifically test the temperature of the nozzle, but heat isn’t the issue as filament still oozes out of the nozzle during clogs.
As stated above, I’m able to replicate this outside of prints, so slicer settings are irrelevant.
SzethFriendOfNimi@lemmy.world 8 months ago
Grasping at straws at this point but did you do a PID tune since changing it?
papalonian@lemmy.world 8 months ago
Hm, I have not. If my printer still reports stable temperatures, is a PID tune necessary? I feel heat isn’t the issue as filament still oozes out of the nozzle when it clogs, but if it has something to do with wildly unstable temps then maybe it could be the cause? I will say that the filaments I’ve tested are all PLA and have successfully extruded at temps as low as 170, and I’ve been experimenting at around 200, so unless the nozzle temp is off by over 30 degrees (which I would’ve noticed at idle temps) I don’t think low temps could be causing it
SzethFriendOfNimi@lemmy.world 8 months ago
I wouldn’t think it would create clogging scenarios usually but the PID tune does allow the firmware to learn the relationship between power applied to the heater and when the thermistor registers temperature changes.
Since you’re getting clogging and after a few minutes that could be from heat creep and there’s always the possibility that it’s being over zealous on the temp since it’s applying heat, not seeing enough increase, applying more heat.
Worth a try since you’d normally want to do a PID tune when you change anything related to it.
For me I do a bed tune when I change plates, and an extruder tune when I change any of the extruder hardware (fans too). If I’m printing in a material where the part fans will be high enough out of the norm I’ll do one with the fan at the given speed (e.g. my dual 5010 fans anywhere about 80% will blow back to the heater block even with creative use of Kapton tape to stop drafts and a PID tune helps mitigate any issues there.