Chainmail #2

Get the test print right first.
Print with a 1.5mm brim, more if you scale it up in size. Unlike my Chainmail #1, this version has very little footing area to stabilise the vertical donuts.
Try 0.2 to 0.35mm layer height and a good head fan, print slower and cooler until the spans bridge between the upright donuts correctly. Note that the donuts are formed by rotating a squished 12 sided polygon to improve the hole space utilisation inside the horizontal donuts.
If you have a fancy meta