Here is one of the coolest (IMO) armor sets in Destiny 2 for the Hunter: the Cloak of Trepidation! All files were downloaded from Destiny STL generator, and then cleaned up and smoothed in Blender.

The cap was printed on the Bambu X1C, and a print profile is provided. It prints in six pieces, and attaches via dowels affixed in the model. Additionally, the print profile utilizes tree supports and lightning infill so as to reduce the weight of the piece. 3 walls are used to provide a decently strong model.

The shoulders/wings have not been printed yet, though the model has been provided! (I'll update this in the future once they have been printed!)

Note: The original scaling in the game is present - I would scale the models down to ~85%. You may need to play around with the scale to better fit to you.