Hi It looks alike, i had the same prob like ;Olaf Baeyens.The basetop inner diameter is like 1.5 mm ;to small. ;In the STL file it looks alike everything is okay.
Has somebody a workaround for that accept grinding this to propper measure.
Hmm looks alike i should calibrate y and x on my printer.All diameters what i have printed yet are almost the same size to small.The outer diameter is also missing something like 1 mm.And the 0.5 could be something like overextruding. ;
So i would recomment to all other users to fine calibrate the printer bevor start printing. ;Otherwise the larger holes like the 110mm bearing in bastop are out of ;tollerance and the bearing ist not mountable without rework.
Cause i am in the middle of printing base and art2 i will test this later.Otherwise all my parts are not be alligned at the outer shell. ;