1mm thick plate with holes of various diameters. 

The included print file is for my Ender3 V2 w/spider v1 hot end and .6 nozzle using Inland PLA+ filament and Prusaslicer. For anyone else struggling with this combination of equipment, I attained the best accuracy by using the XY compensation with a value of -.2mm and then adding .4mm to the X and Y axis of the object using the scale adjustment. This would give me exterior dimensions of the object accurate to +/- .1mm, and give me the same tolerance on the inner diameter of any holes/cavities (round, hex or rectangular) larger than 10mm. On anything smaller the tolerance was increased to +/- .2mm