OK, so I have 3 diodes, wired and rigged with a 9volt battery. Now how do I get these little suckers to line up, and stay aligned? And what should I mount them in, prior to plugging them into a bio? I was thinking a small flashlight enclosure, but I'm guessing I'd need to get the lasers permanently aligned prior to inserting into an enclosure, due to space... What do you all think? Anyone done this, that could throw me a few pointers? Many thanks!