I've been to kering with my Ender 3 V3 SE for a while now. I upgraded it to linear rails, added support beams, and upgraded the cooling system (shower head vs one directional cooking fan). Throughout, my issues haven't changed (though my point quality has noticably gone up). Printer has a direct drive extruder. 

The issue: 

My prints look like boody-dew with blobs and stringing everywhere, and my dimensional accuracy is off. I've changed my retraction settings from Length: 1.0 to .8, then to .4, then back up to 1.0. I've changed my retraction speed from 30mm/sec to 20mm/sec, then back up, and experimented with multiple filements and temp settings. I've made sure my gantry is level (and for some reason it still has a tendency to slowly drift higher on the motor side after several print hours, so I check it and slightly adjust it weekly to reduce any issues that that may cause), I've checked all bolts, tightened the bed, etc. I have turned off power recovery mode in the G-code, and added the code for remembering the mesh (as per the ender 3 V3 SE subreddit FAQ). I check z-offset religiously, doing it manually, and adjusting during first layer. I turned auto calibrate before each print off to not reset leveling data, and auto level the bed at least once every few prints. 

I'm at a loss at this point. 

It almost seems like filament is being over extruded or dragged or something, because randomly a bit of filament will glob up on a random part while printing, I'm not 100% sure what's causing this (scraping vs over extruding) 

All filements has been dried in a Sunlu filement dryer for at least 4-6 hours, with the most recent print being a 12 hour dry. No noticable changes. 

Settings for Sunlu Matte PLA (Black):

Nozzle: 205 (printing at 60 speed)
Bed: 55
Retraction: Length 1.0, speed 30mm/s
Z hop when retracting: .2mm

Included are photos of all settings and the issues.
I'm happy to give more info, more photos, etc. I can show a Benchy that shows dimensional accuracy issues in the rear window. I almost feel like its a mechanical issue and not a setting issue at this point. 




Need Help with Ender 3 V3 SE