I made this replacement top cap cover for my Fujinon 2x Teleconverter because I lost the original one. Since the 2x is the tallest of the Fujinon teleconverters (like the 1.4x, etc.), this should also fit those just fine.
The cap fits snugly over the top of the teleconverter to keep out dust and protect the glass when not in use.
It’s not an exact replica of the original, but it works well as a functional replacement. Hope it helps someone else who lost theirs!
The author remixed this model.
I used the grip design from this print but modified the model to be fully closed and shaped to fit the converter lens, creating a functional replacement cover.