To go with the build, I just ordered this AixiZ lens:
AixiZ
And I got the "full threaded" version so it would work with the external focus adapter bezel, this is what I want, correct? Then I'll just thread on the focus adapter and put a tiny drop of thread locker or RTV silicone so the lens moves in and out of the head/heatsink where the diode has been pressed in.
Everything sound kosher? Am I missing something? (I also asked them to verify it was the right 405/445nm coating in the order notes, mentioning I was an LPF member.)