Wikilla

You're both 100% right. That particular piece is at a slight angle. I am rotating it a different way for the reprint, as I'm too lazy to want to go back and fix that, lol.

It looks like you're using Tinkercad? If so, I believe they have some pre-made dice block shapes you can use. Otherwise, grab a square "box" and crank the "steps" all the way up, then tweak the "radius" up just a smidge to get those smooth edges. From there, you can take a sphere and put it to its "hole" mode, stick it about halfway in the side of the die block and group. Should just be able to duplicate at that point on!

Anyway to fix these shell lines so they don't show up on the print? Enabling Ironing helps but they still seem to show. Would adding a top surface skin layer help? Or is there something else that can be done? Any help is appreciated!