The set of insertions tools I purchased online came in a simple plastic box, so I decided to make this print to keep the parts better organized.
Print in PLA using the 3mf files provided, otherwise :
After printing and removal from the print bed, flex the hinges very slightly and then slowly increase the amount of flex to work the hinges free.
Optional : Put some foam rubber in the lid (see photos) to keep the brass pieces in place inside the box.
The OnShape 3D CAD files for this are here :
The author remixed this model.
I redesigned the print from scratch :