Some day’s ago my 3dprinter lose some details and prints look molten.
I happend after I level my bed
I use the default settings for a reprap pursa I3.
And I don’t have any mods on my printer.
The black is the good one the white not
Has the white one been printed with supports everywhere turned on?
I’d go back to your slicer program and check your settings. I had a similar issue and found I had changed the Bottom/Top thickness (mm). Your shell thickness and Bottom/Top should be the same. I found the number by multiplying 6 times the nozzle size 0.4 to get 2.4.
Also you don’t state what material you are using. ABS will do this if a constant cool breeze is present, which is why you have to use an enclosure or even a very hot room like a garage in the summertime.
Hope this gives you something to think about.
Henry