Core One suddenly struggling to print - underextrusion/clicking 15% through a print
Hello all,
I got a Prusa Core One XY a few months ago and it printed fine in PETG, PLA and ABS for about a month. For reasons I don't understand, it began failing to extrude about 15% the way through a print using Prusa Slicers generic COREXY 0.4mm HF profile and generic PLA profiles, with CORE ONE 0.2mm layer height speed and balanced. It gets to a certain height (or volume, or time) in a print, specifically benchy but has happened on other models too, then it stops extruding and I hear clicking.
Printing the demo benchy gcode from the USB gets far/finishes but with severe quality issues; large gaps in walls, underextrusion on the roof of benchy and the nozzle catches the chimney and swirls that around.
- Updating firmware
- 2 cold pulls, although i couldnt match this 1:1 with prusa's instruction since i could not push filament through manually with the idler disengaged, had to make the extruder motor extrude.
- Heater nozzle test failed last week but seems to pass now
- Fans seem to be working and pass test
- Other models
- Other filament
- Drying filament
- Verifying idler screws are flush
- Importing Gcode from (un-ideal) demo benchy, printer
see below, top is using slicer gcode where it just stops extruding, bottom is the demogcode
RE: Core One suddenly struggling to print - underextrusion/clicking 15% through a print
I experienced similar behaviour on my XL5 using the HF 0.4mm profiles. I found that some filament cannot print at high extrusion speeds. I had the same clicking noise. I also have a Core One but have not had this experience. However, I have reduced the volumetric flow from 21 to 18 for some of the filaments. When I did this for the XL, it corrected the problem
Might be worth a shot on the Core One if you have not done so already.