Burke Class (TOS)
Here is my kit bash of a Burke Class starship based on https://fasaststcs.com/index.php/thefleets/united-federation-of-planets/star-fleet/burke-class-viii-frigate/, using Captain Mojo's Star Trek Constitution Class Parts Kit.
It's scaled to 1/3900 but it should be easy enough to re-scale in the slicer of your choice.
I made it in OrcaSlicer.