smalkasian

I have an issue with my printer under extruding. I have replaced filament, changed software, replaced Bowden tube, changed temps, cleaned the nozzle, readjusted feeder tension but my printer is still under extruding. It is fine on the first 3 layers and then after that is just messes up. Here is a photo of the most recent print I did. Still the same issue. At this point I am at a loss of what to do. This is the DIY Prusa MK8 extruder from ebay (yes, not the highest quality) but any advice or help would be greatly appreciated. Thank you community!

Every item I print turns out this way (see photos). I have tried adjusting temps (doing that right now) and cleaning the tip, but maybe I'm still missing something? All of my prints turn out very brittle and crackly. Just very poor quality. I have the PLA in a dehydrator keeping it warm and dry. Any thoughts or help? I am new to the 3D printing community so any explanation or advice is greatly appreciated! Thank you so much!