X-Y Hole compensation / tolerances
I created this calibration print with holes in it, and the outer dimensions were perfect, but the inner ones were off by some fraction of millimeter. After I adjusted the X-Y hole compensation in my slicer, the dimensions are now perfect. Except, I have an "island" (a feature inside a hole" that just got shrunk instead of expanded (should be 5mm, was 4.8, went down to 4.6). This is a signal for me that maybe adjusting this setting is not very robust. However, I'd like to attempt to fix it somehow, since currently my V-Core's tolerances are currently worse than the original Ender 3 that I have (of course the RatRig is printing way faster than the Ender).
I guess what I'm asking here is: What are some common issues that might lead to only internal dimensions being off?
I guess what I'm asking here is: What are some common issues that might lead to only internal dimensions being off?

![Rat Rig Community [Unofficial] banner](https://cdn.discordapp.com/banners/582187371529764864/4ee3e42e227d6aac26f048a3e69d5924.webp?size=480)