Star Trek Discovery badges. There is an STL for each insignia; command, medical, science, engineering.
I finished these with wet & dry sanding and then spray painted them gold, silver and bronze to match the rank.
There is a indent at the back for a small round magnet to be glued.
These are a challenge to print as they curve slightly so there is no flat edge. Support material is needed so post processing of the model is important to get a good finish.
