So I bought the 0.6mm nozzle to print some cases for my miniatures and have not being able to print properly a single thing with it.
I ran the calibration after changing nozzle, dried the filament for 2h in my Sunlu drier, but nothing.
I’m using Elegoo Black PLA and this only thing that printed correctly was the XYZ Cube.
Here is a picture of the Flow Dynamics Calibration I just run trying to fix this.
Any idea on how can I fix this issue?
I recently ran into an issue where I was getting odd flow issues that I couldn’t explain. After spending an embarrassingly long time troubleshooting the issue, I eventually found that I had my .2 nozzle installed when I thought it was .4. You might double check that in your slicer you have the correct nozzle selected.
Definitely looks under-extruded.
Please verify you have the 0.6 nozzle selected in your slicer.
The nozzle selection is the dropdown menu directly under “Printer” on the top of the settings menu.
If the 0.6 doesn’t show up as an option, click on the gear to the right of “Printer” and make sure the nozzle size is checked under the P1 series options.
Yes, it is selected.
Just curios, what’s the Max volumetric speed set to for the offending filament?
Maybe post a SS with your filament’s settings.
Oh… and did you verify your part fan is running?
Often times when I do a hotend swap, if the cable that connects the extruder cover/part fan assembly is not seated correctly, the part fan does not spin.
The P1P doesn’t seem to throw an error for this either.
Without the part fan running PLA will not print properly.
Thanks for your input.
I have the P1S and it threw an error when I installed the new hot-end because of the fan wasn’t plugged properly.
I think I fixed it after running a new calibration cycle in BambuStudio instead of Orca Slicer.
I’ll confirm after this print finishes but so far it looks promissing.
That’s great to hear!
There are 3 connectors when swapping a hot end.
The hotend heater/thermal sensor connector, the hotend fan connector and the part fan (embedded in the cover assembly) connector.
The first 2 will throw an error when not properly connected.
The part fan connector will not throw an error, yet the part fan will not run.
I’ve had this happen several times.
I have a first run P1P so maybe they’ve made some kind of change to remedy this on the newer ones. I just wanted you to be aware that it could be a possibility.
Can you post a screenshot of your filament settings?
Did you calibrate the Max volumetric speed yourself?
Wondering how it got set at 16.
Try dropping down to 11 or 12 and see if that improves your extrusion issues.
Thank you.
No I haven’t set it.
Will do it now
Well the under extrusion issue seems to be better, but you are experiencing some kind of blobbing issue now.
Those “strings” at the bottom look like purge waste that hung onto the nozzle. I don’t understand where those are coming from.
I’d try to print a smaller similar model and watch it print. See if you can see what’s going on with those purge strings.
I apologize that I don’t have better advise. I have never encountered any issue like that with PLA except for maybe when the part fan wasn’t running.
Thank you so much for your help, it has been fabulous.
I’ll do that and make sure, again, that the fan is running
I’d agree with Lexi, take a look and make sure your part cooling fan is operating. Also take a look to make sure nothing is impeding the heat break fan.
Did you buy the .6 as a complete hotend or did you put it together yourself? I’ve seen users have issues related to the thermal paste, specifically drying out and causing just enough heating issues to cause similar issues.
We could be overthinking some things and the filament just doesn’t like the temperature its being printed at. Might run a quick temperature tower to see how it prints at different temperatures.
That’s a good point… nozzle vs. hotend assembly.
I have only ever purchased the hotend assemblies, so I wouldn’t have to mess around with the fan, heater and thermistor swapping. I get why BL sells the nozzle alone, but they should really try to steer customers toward the assembly to avoid all of that extra fuss.
I’m printing PLA-CF (not bambu) with 0.6 nozzle and 0.24 layerheight. Flow ratio 1.05, max volumetric speed 10.
no underextrusion and really nice prints. Maybe your flow ratio (0.97) is too low
