Filament not extruding I've recently bought an Anet A8, and haven't been getting good prints with it. I noticed there was filament leaking from the top of the hot end and pooling, eventually dripping over onto my prints. I took the hot end off to clean it, and when I put it back on and tightened it, my printer wouldn't extrude anymore. I took the motor apart, and there was a lot of filament shavings inside. I tried tightening the screw that splits the bearing and gear that feeds the filament since I thought it may be getting caught in there. 

I can manually push filament through and it works fine. There's no jam, so I'm thinking it IS something to do with that, but I don't really know what to do. Now that I've done this also, I feel as if I've screwed up the e steps. 

Any ideas?
The spindle screws on the gear are shipped not tight enough. Try taking the fan off and make sure the gear is seated properly and tighten the screws down. Here's a video that might help. https://youtu.be/zkZKzF3J3NA