


Is this heat creep?
Sorry if this is an stupid question or if the photos are not helpful.
Lately I've been trying to print some terrains for WH40k. The ruins I'm trying to print re foldable and the small ones print without any issue, but the longer ones fail after some time.
It seems to be a clog, because filament simply stop going through and the extruder starts to skip and grind the filament.
Restarting or printing something else always seem to fix the issue without need to unclog the nozzle.
I've tried reducing extrusion distance and speed and still the issue persist. The failed print from the photo is the second atempt at a large ruin which clogged after 1hr and 30min of print (+- 5mm high). The first one failed at the same time. Curiously, in between failed attemps I managed to print a smaller ruin (4:30hr print), with the only difference being that the model had thicker walls.
Currently I'm sitting at :
- 195-200 degress (have tried both)
- 2mm retraction
- 25mm/s retraction speed
- 50mm/s printing speed
- 15mm/s first layer
- 0.2mm layers
- 5% gyroid infill
Printer has the original stock heatblock and fans, metal extruder, runout sensor, autolevel and magnetic PEI. I'm considering using a bi-metal heatbreak and replacing the fan, since anything more expensive than that at this point and I'd consider getting a newer model, since I've had this one for 3 years now.