Support calibration test

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It's just a sphere, the sort of thing that shouldn't print without supports, so you can test supports. This is the sort of shape that no matter what I try does not print well. If anyone can give me some pointers how to make this work I would be so grateful.

In the picture on the left is a sphere I started printing without supports accidentally, and on the right is the sphere and the supports that printed it. Sadly, there's very little difference between the two even after adjusting the settings according to /thing:41467 and lowering the minimum angle to 30 (which didn't work the way I expected it to).