3D Printing Forum

I have run through updating firmware to Marlin and added suggestions from Chip which GREATLY improved print quality. Unfortunately I'm having an issue where anything that prints towards back is failing. I flipped my print around thinking it was the file was problem and same issue occurs. As you will notice the holes and connectors fail for quality. I've taken a picture in hopes someone can help me figure it out. Any ideas?

Strange photos were posted right side up an it appears as though they flipped when I uploaded them.

It could be that the cooling fans are not effective directing the flow, you may also be printing slightly too hot.
Check the direction and coverage of your fan ducts too see if you are getting all round cooling of the part.

That is a strange one. Can you share or link your .stl file so someone might also try printing it?