Summary

The creator of the original file graciously uploaded the original design file, so it was easy to make modifications to use this as a single microphone mount.

This prints in two files. One is the mount for the mic. The other is the back plate that goes above the ceiling tile as a "washer" of sorts.

I used two 10-24 x 2" Philips Bolts and two nuts to hold it in place. The recesses in part A are for that style bolt.