u/Consistent-Job8812

Hi all, I have seen a few posts on the topic of unclogging Revo nozzles, but not specifically on the topic of engineering materials.

Long story short, I have two 0.4mm Revo nozzles (HF ObXidian and ObXidian) both are clogged with PET-GF and PET-CF respectively. Both nozzles became clogged while printing at 300c. It appears that the material has hardened or something because I am not able to unclog it with a cold pull, or piano wire.

Does anyone have any suggestions or am I out $130 on nozzles?