Anyone into 3D printing?

Spork

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My printer has been acting up, prints have lost consistency and have weak spots in them. Tried printing the spool I modeled for Unstuck and it looks like this before it stopped printing... Listening to the printer it sounds like the filament is stuck like a clogged nozzle, I switched out the nozzle and it doesn't seem to help.

In this print the bottom is honeycombed then in the middle it acts solid before it goes back to honeycomb and spongy before it stopped printing. The printer is over 5 years old (ender 3). Hot end issue? Filament issue? Power supply issue? What would you do at this point?
 

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