I recently had a print failure/crash, where the print stuck to the nozzle and forced molten filament back into the print head, fans, and heater block.
I changed the nozzle for a new 0.4mm same as existing. I shortened the bowden tube by ~8mm to remove some crispiness, and the push-lock connector on top of the print head, which was full of solidified PLA.
The hotend was scraped clean of PLA, and the wiring was inspected. The silicon sock was unhappy but I managed to get it to stay in place.
The part-cooling fan duct was deformed, but I have reshaped it as well as I could. The part-cooling air is probably slightly less than it was.
I'm printing some Gridfinity bins, and the base just isn't filling in completely and there is also more stringiness.
The sides are not joining up at all, and are just a series of separate strands. They do merge somewhat at the corners.
My printer worked much better before the crash - what do I have to focus on to improve this?
All print jobs since the reassembly are lower in quality, with one in three showing these large "wire bundles" look but all of them are not as good as before-prints.