Thanks for posting.
I just double checked the model. Rhino check is fine, looking at the STL in various modes shows nothing like this pattern. Everything look orderly in the tri pattern.
The discs are actually the tops of cones made from a primative. I did do a 1D scale, to reduce the height and to get them to match for alignment on the build platform.
I guess I need to go back and reconstruct them from scratch.
I'm letting the print run, but not too hopefully. And the supports are my sprues, so if they are not right, no chance for the casting to be right.