FYI: This is really not public ready! But here I am anyway... first personal design/print.The stl should be the size that worked reasonably well for me, but there was lots of ooze making the inner diameter small. I printed with a raft and did not remove it because it gave me closer to the height I needed.This is my first design/print (maybe my 50th attempt at printing, ha! Glad to be joining the community finally though.So, what is it? It's an F-Type female to N-Type female BNC converter. Radioshack didn't have any N type, and the local ham shop was closed. So, why not print it?At this size on my machine the ooze (I think that's what it's called) makes the inner diameter small enough that the F-type BNC needs to be pushed in, and the metal threads tear out a pathway. The copper wire in the picture is to provide some electrical connection from the grounded shielding to the nuts to the wave guide - this is only really necessary if you need that ground connection. This is my first antenna build as well...Print the part - may require some experimentation I relied on the ooze of my print to create an overly tight fit.Leave the raft on, it keeps it closer to flush with the brass of the BNC (like an N-Type).Drill out the 4 mount holes (or however you need to do this) and remove the raft just in the center hole so the BNC fits through it.Press/tap the threads of your BNC connector into the plastic for a tight/flush fit - careful don't over do it!