I needed a cable gland for a project, but the designs available weren't sturdy enough, so with a lot of thought I came up with this design. It can be printed without supports, although I do suggest keeping them, the design uses TPU for the sealing surfaces, I recommend printing the TPU plate first, as it will take a while to cool down from other higher temp filaments (PETG in my case) used for the structural parts.

NOTE REGARDING THREADS:

• If you change the size/diameter of the threaded parts, you need to re-define the threads in Fusion, the threads cannot be parametrized.
• If going for smaller threads, keep in mind the Loosening_Distance parameter may mess them up to a point where they disappear.
• These threads need to be fine tuned to fit your pre-existing electrical box.